Input File	Description
mp2p5-grad2	MP2.5 cc-pVDZ gradient for the NO radical
cc46	EOM-CC2/cc-pVDZ on H2O2 with two excited states in each irrep
opt11	Transition-state optimizations of HOOH to both torsional transition states.
dfomp2p5-grad1	DF-OMP2.5 cc-pVDZ gradients for the H2O molecule.
dfmp2-grad4	DF-MP2 cc-pVDZ gradient for the NO molecule.
cc40	RHF-CC2-LR/cc-pVDZ optical rotation of H2O2. gauge = length, omega = (589 355 nm)
cc25	Single point gradient of 1-2B2 state of H2O+ with EOM-CCSD
casscf-sp	CASSCF/6-31G** energy point
cc13	UHF-CCSD/cc-pVDZ \(^{3}B_1\) CH2 geometry optimization via analytic gradients
omp3-5	SOS-OMP3 cc-pVDZ geometry optimization for the H2O molecule.
dcft-grad4	Unrestricted DF-DCFT ODC-12 gradient for O2 with cc-pVTZ/cc-pVTZ-RI standard/auxiliary basis set
fd-freq-gradient	STO-3G frequencies for H2O by finite-differences of gradients
ocepa-grad2	OCEPA cc-pVDZ gradient for the NO radical
dfscf-bz2	Benzene Dimer DF-HF/cc-pVDZ
isapt1	This test case shows an example of running and analyzing an FI-SAPT0/jun-cc-pvdz computation for 2,4-pentanediol (targeting the intramolecular hydrogen bond between the two hydroxyl groups)
dfmp2-2	Density fitted MP2 energy of H2, using density fitted reference and automatic looping over cc-pVDZ and cc-pVTZ basis sets. Results are tabulated using the built in table functions by using the default options and by specifiying the format.
cc8a	ROHF-CCSD(T) cc-pVDZ frozen-core energy for the \(^2\Sigma^+\) state of the CN radical, with Cartesian input.
cbs-xtpl-gradient	Various gradients for a strained helium dimer and water molecule
cbs-xtpl-opt	Various extrapolated optimization methods for the H2 molecule
ci-multi	BH single points, checking that program can run multiple instances of DETCI in a single input, without an intervening clean() call
fd-freq-gradient-large	SCF DZ finite difference frequencies by energies for C4NH4
cisd-h2o+-0	6-31G** H2O+ Test CISD Energy Point
psimrcc-ccsd_t-4	Mk-MRCCSD(T) single point. \(^1A_1\) O$_3` state described using the Ms = 0 component of the singlet. Uses TCSCF orbitals.
mp2-grad1	MP2 cc-pVDZ gradient for the H2O molecule.
omp3-grad2	OMP3 cc-pVDZ gradient for the NO radical
fsapt1	This test case shows an example of running and analyzing a standard F-SAPT0/jun-cc-pvdz procedure for phenol dimer from the S22 database.
extern1	External potential calculation involving a TIP3P water and a QM water. Finite different test of the gradient is performed to validate forces.
cisd-h2o+-2	6-31G** H2O+ Test CISD Energy Point
sapt1	SAPT0 cc-pVDZ computation of the ethene-ethyne interaction energy, using the cc-pVDZ-JKFIT RI basis for SCF and cc-pVDZ-RI for SAPT. Monomer geometries are specified using Cartesian coordinates.
cc52	CCSD Response for H2O2
decontract	RHF/cc-pvdz-decontract HCl single-point energy Testing the in line -decontract option for basis sets
cc55	EOM-CCSD/6-31g excited state transition data for water with two excited states per irrep
dft-b2plyp	Double-hybrid density functional B2PYLP. Reproduces portion of Table I in S. Grimme’s J. Chem. Phys 124 034108 (2006) paper defining the functional.
stability2	ROHF stability analysis check for CN with cc-pVDZ. This test corresponds to the rohf-stab test from Psi3.
psimrcc-ccsd_t-1	Mk-MRCCSD(T) single point. \(^1A_1\) CH2 state described using the Ms = 0 component of the singlet. Uses RHF singlet orbitals.
cc44	Test case for some of the PSI4 out-of-core codes. The code is given only 2.0 MB of memory, which is insufficient to hold either the A1 or B2 blocks of an ovvv quantity in-core, but is sufficient to hold at least two copies of an oovv quantity in-core.
soscf2	Triple and Singlet Oxygen energy SOSCF, also tests non-symmetric density matrices
psithon2	Accesses basis sets, databases, plugins, and executables in non-install locations
dft1-alt	DFT Functional Test
dfccdl1	DF-CCDL cc-pVDZ energy for the H2O molecule.
sapt5	SAPT0 aug-cc-pVTZ computation of the charge transfer energy of the water dimer.
dcft3	DC-06 calculation for the He dimer. This performs a simultaneous update of the orbitals and cumulant, using DIIS extrapolation. Four-virtual integrals are handled in the AO Basis, using integrals stored on disk.
mp2-def2	Test case for Binding Energy of C4H5N (Pyrrole) with CO2 using MP2/def2-TZVPP
dcft-grad3	Restricted DF-DCFT ODC-12 gradient for ethylene with cc-pVDZ/cc-pVDZ-RI standard/auxiliary basis set
cepa0-grad1	CEPA0 cc-pVDZ gradient for the H2O molecule.
mp3-grad1	MP3 cc-pVDZ gradient for the H2O molecule.
nbody-he-cluster	MP2/aug-cc-pv[DT]Z many body energies of an arbitrary Helium complex Size vs cost tradeoff is rough here
cc13d	Tests analytic CC2 gradients
scf5	Test of all different algorithms and reference types for SCF, on singlet and triplet O2, using the cc-pVTZ basis set.
omp2-3	OMP2 cc-pVDZ energy for the NO radical
scf2	RI-SCF cc-pVTZ energy of water, with Z-matrix input and cc-pVTZ-RI auxilliary basis.
cc36	CC2(RHF)/cc-pVDZ energy of H2O.
mints3	Test individual integral objects for correctness.
options1	check all variety of options parsing
cc5a	RHF CCSD(T) STO-3G frozen-core energy of C4NH4 Anion
omp2-1	OMP2 cc-pVDZ energy for the H2O molecule.
cc19	CCSD/cc-pVDZ dipole polarizability at two frequencies
ocepa-grad1	OCEPA cc-pVDZ gradient for the H2O molecule.
dfccsdat1	DF-CCSD(AT) cc-pVDZ energy for the H2O molecule.
dcft4	DCFT calculation for the HF+ using DC-06 functional. This performs both two-step and simultaneous update of the orbitals and cumulant using DIIS extrapolation. Four-virtual integrals are first handled in the MO Basis for the first two energy computations. In the next two the ao_basis=disk algorithm is used, where the transformation of integrals for four-virtual case is avoided. The computation is then repeated using the DC-12 functional with the same algorithms.
mp2-module	OMP2 cc-pVDZ energy for the H2O molecule.
cc28	CCSD/cc-pVDZ optical rotation calculation (length gauge only) on Z-mat H2O2
fnocc1	Test QCISD(T) for H2O/cc-pvdz Energy
dfccd1	DF-CCD cc-pVDZ energy for the H2O molecule.
opt2-fd	SCF DZ allene geometry optimzation, with Cartesian input
dfomp2-2	OMP2 cc-pVDZ energy for the NO molecule.
dcft6	DCFT calculation for the triplet O2 using DC-06, DC-12 and CEPA0 functionals. Only two-step algorithm is tested.
omp3-grad1	OMP3 cc-pVDZ gradient for the H2O molecule.
pywrap-freq-g-sowreap	Finite difference of gradients frequency, run in sow/reap mode.
cc48	reproduces dipole moments in J.F. Stanton’s “biorthogonal” JCP paper
dfccd-grad1	DF-CCSD cc-pVDZ gradients for the H2O molecule.
mints9	A test of the basis specification. Various basis sets are specified outright and in blocks, both orbital and auxiliary. Constructs libmints BasisSet objects through the constructor that calls qcdb.BasisSet infrastructure. Checks that the resulting bases are of the right size and checks that symmetry of the Molecule observes the basis assignment to atoms.
cc31	CCSD/sto-3g optical rotation calculation (both gauges) at two frequencies on methyloxirane
cisd-sp-2	6-31G** H2O Test CISD Energy Point
opt1	SCF STO-3G geometry optimzation, with Z-matrix input
adc1	ADC/6-31G** on H2O
mp2-grad2	MP2 cc-pVDZ gradient for the NO radical
dfccsd-grad1	DF-CCSD cc-pVDZ gradients for the H2O molecule.
dft3	DFT integral algorithms test, performing w-B97 RKS and UKS computations on water and its cation, using all of the different integral algorithms. This tests both the ERI and ERF integrals.
cc8	UHF-CCSD(T) cc-pVDZ frozen-core energy for the \(^2\Sigma^+\) state of the CN radical, with Z-matrix input.
mp3-grad2	MP3 cc-pVDZ gradient for the NO radical
scf6	Tests RHF/ROHF/UHF SCF gradients
cc4	RHF-CCSD(T) cc-pVQZ frozen-core energy of the BH molecule, with Cartesian input. After the computation, the checkpoint file is renamed, using the PSIO handler.
pywrap-opt-sowreap	Finite difference optimization, run in sow/reap mode.
cc47	EOM-CCSD/cc-pVDZ on H2O2 with two excited states in each irrep
dcft-grad2	RHF-ODC-12 analytic gradient computations for H2O use AO_BASIS=DISK and AO_BASIS=NONE, respectively. RHF-ODC-06 analytic gradient computations for H2O use AO_BASIS=DISK and AO_BASIS=NONE, respectively.
fsapt2	A very quick correctness test of F-SAPT (see fsapt1 for a real example)
cepa3	cc-pvdz H2O Test coupled-pair CISD against DETCI CISD
cc32	CC3/cc-pVDZ H2O \(R_e\) geom from Olsen et al., JCP 104, 8007 (1996)
scf-hess1	RHF STO-3G (Cartesian) and cc-pVDZ (spherical) water Hessian test, against Psi3 reference values.
ocepa-freq1	OCEPA cc-pVDZ freqs for C2H2
dfccsdt1	DF-CCSD(T) cc-pVDZ energy for the H2O molecule.
pywrap-db2	Database calculation, run in sow/reap mode.
sad1	Test of the superposition of atomic densities (SAD) guess, using a highly distorted water geometry with a cc-pVDZ basis set. This is just a test of the code and the user need only specify guess=sad to the SCF module’s (or global) options in order to use a SAD guess. The test is first performed in C2v symmetry, and then in C1.
dft-psivar	HF and DFT variants single-points on zmat methane, mostly to test that PSI variables are set and computed correctly. Now also testing that CSX harvesting PSI variables correctly
ocepa2	OCEPA cc-pVDZ energy with B3LYP initial guess for the NO radical
dcft5	DC-06 calculation for the O2 molecule (triplet ground state). This performs geometry optimization using two-step and simultaneous solution of the response equations for the analytic gradient.
opt-irc-1	Compute the IRC for HOOH torsional rotation at the RHF/DZP level of theory.
dcft2	DC-06 calculation for the He dimer. This performs a two-step update of the orbitals and cumulant, using DIIS extrapolation. Four-virtual integrals are handled in the MO Basis.
fci-tdm-2	BH-H2+ FCI/cc-pVDZ Transition Dipole Moment
dfcasscf-fzc-sp	CASSCF/6-31G** energy point
cepa2	cc-pvdz H2O Test ACPF Energy/Properties
cc24	Single point gradient of 1-2B1 state of H2O+ with EOM-CCSD
castup1	Test of SAD/Cast-up (mainly not dying due to file weirdness)
dfomp3-grad1	DF-OMP3 cc-pVDZ gradients for the H2O molecule.
pywrap-alias	Test parsed and exotic calls to energy() like zapt4, mp2.5, and cisd are working
fci-dipole	6-31G H2O Test FCI Energy Point
cc2	6-31G** H2O CCSD optimization by energies, with Z-Matrix input
dft1	DFT Functional Test
cc11	Frozen-core CCSD(ROHF)/cc-pVDZ on CN radical with disk-based AO algorithm
pywrap-cbs1	Various basis set extrapolation tests
dft-grad	DF-BP86-D2 cc-pVDZ frozen core gradient of S22 HCN
x2c3	Test of SFX2C-1e on Water uncontracted cc-pVDZ The reference numbers are from Lan Cheng’s implementation in Cfour
cubeprop-esp	RHF orbitals and density for water.
cc49	EOM-CC3(UHF) on CH radical with user-specified basis and properties for particular root
opt-multi-dimer-c1	Multi-fragment opt of C2h methane dimer with user-combined reference points.
pywrap-checkrun-uhf	This checks that all energy methods can run with a minimal input and set symmetry.
cc13c	Tests RHF CCSD(T)gradients
mom	Maximum Overlap Method (MOM) Test. MOM is designed to stabilize SCF convergence and to target excited Slater determinants directly.
zaptn-nh2	ZAPT(n)/6-31G NH2 Energy Point, with n=2-25
omp2-grad1	OMP2 cc-pVDZ gradient for the H2O molecule.
pywrap-checkrun-convcrit	Advanced python example sets different sets of scf/post-scf conv crit and check to be sure computation has actually converged to the expected accuracy.
dfrasscf-sp	6-31G** H2O Test RASSCF Energy Point will default to only singles and doubles in the active space
ao-casscf-sp	CASSCF/6-31G** energy point
tu2-ch2-energy	Sample UHF/6-31G** CH2 computation
opt13	B3LYP cc-pVDZ geometry optimzation of phenylacetylene, starting from not quite linear structure
dft-b3lyp	Check flavors of B3LYP (b3lyp3/b3lyp5) against other programs
dfomp2-grad1	DF-OMP2 cc-pVDZ gradients for the H2O molecule.
psimrcc-fd-freq1	Mk-MRCCSD single point. \(^3 \Sigma ^-\) O2 state described using the Ms = 0 component of the triplet. Uses ROHF triplet orbitals.
cbs-xtpl-energy	Extrapolated water energies
soscf1	Second-order SCF convergnece: Benzene
mints6	Patch of a glycine with a methyl group, to make alanine, then DF-SCF energy calculation with the cc-pVDZ basis set
isapt2	This is a shorter version if isapt1 - does not do cube plots. See isapt1 for full details
casscf-sa-sp	Example of state-averaged CASSCF for the C2 molecule see C. D. Sherrill and P. Piecuch, J. Chem. Phys. 122, 124104 (2005)
cbs-xtpl-wrapper	RHF aug-cc-pVQZ energy for the BH molecule, with Cartesian input. Various gradients for a strained helium dimer and water molecule
dfccsd1	DF-CCSD cc-pVDZ energy for the H2O molecule.
cc13b	Tests RHF CCSD(T)gradients
x2c1	Test of SFX2C-1e on water uncontracted cc-pVDZ-DK The reference numbers are from Lan Cheng’s implementation in Cfour
scf-property	UFH and B3LYP cc-pVQZ properties for the CH2 molecule.
dfomp2p5-2	DF-OMP2.5 cc-pVDZ energy for the H2O+ cation
opt14	6-31G(d) optimization of SF4 starting from linear bond angle that is not linear in the optimized structure but is in a symmetry plane of the molecule.
dcft-grad1	DCFT DC-06 gradient for the O2 molecule with cc-pVDZ basis set
pywrap-checkrun-rhf	This checks that all energy methods can run with a minimal input and set symmetry.
opt5	6-31G** UHF CH2 3B1 optimization. Uses a Z-Matrix with dummy atoms, just for demo and testing purposes.
cc53	Matches Table II a-CCSD(T)/cc-pVDZ H2O @ 2.5 * Re value from Crawford and Stanton, IJQC 98, 601-611 (1998).
dfomp3-1	DF-OMP3 cc-pVDZ energy for the H2O molecule.
psithon1	Spectroscopic constants of H2, and the full ci cc-pVTZ level of theory
tu5-sapt	Example SAPT computation for ethene*ethine (i.e., ethylene*acetylene), test case 16 from the S22 database
cc39	RHF-CC2-LR/cc-pVDZ dynamic polarizabilities of HOF molecule.
cc18	RHF-CCSD-LR/cc-pVDZ static polarizability of HOF
dfomp2-1	OMP2 cc-pVDZ energy for the H2O molecule.
cc35	CC3(ROHF)/cc-pVDZ H2O \(R_e\) geom from Olsen et al., JCP 104, 8007 (1996)
fd-freq-energy-large	SCF DZ finite difference frequencies by energies for C4NH4
dfomp2-grad2	OMP2 cc-pVDZ energy for the NO molecule.
cc1	RHF-CCSD 6-31G** all-electron optimization of the H2O molecule
psimrcc-sp1	Mk-MRCCSD single point. \(^3 \Sigma ^-\) O2 state described using the Ms = 0 component of the triplet. Uses ROHF triplet orbitals.
castup2	SCF with various combinations of pk/density-fitting, castup/no-castup, and spherical/cartesian settings. Demonstrates that puream setting is getting set by orbital basis for all df/castup parts of calc. Demonstrates that answer doesn’t depend on presence/absence of castup. Demonstrates (by comparison to castup3) that output file doesn’t depend on options (scf_type) being set global or local. This input uses global.
cc10	ROHF-CCSD cc-pVDZ energy for the \(^2\Sigma^+\) state of the CN radical
opt-freeze-coords	SCF/cc-pVDZ optimization example with frozen cartesian
cc27	Single point gradient of 1-1B2 state of H2O with EOM-CCSD
mpn-bh	MP(n)/aug-cc-pVDZ BH Energy Point, with n=2-19. Compare against M. L. Leininger et al., J. Chem. Phys. 112, 9213 (2000)
cbs-delta-energy	Extrapolated energies with delta correction
omp2-5	SOS-OMP2 cc-pVDZ geometry optimization for the H2O molecule.
scf-freq1	Analytic vs. finite difference DF-SCF frequency test for water.
cc22	ROHF-EOM-CCSD/DZ on the lowest two states of each irrep in \(^{3}B_1\) CH2.
cc14	ROHF-CCSD/cc-pVDZ \(^{3}B_1\) CH2 geometry optimization via analytic gradients
mp2-1	All-electron MP2 6-31G** geometry optimization of water
cepa1	cc-pvdz H2O Test CEPA(1) Energy
casscf-fzc-sp	CASSCF/6-31G** energy point
extern2	External potential calculation involving a TIP3P water and a QM water for DFMP2. Finite different test of the gradient is performed to validate forces.
opt9	Various constrained energy minimizations of HOOH with cc-pvdz RHF. Cartesian-coordinate constrained optimizations of HOOH in internals.
cc9a	ROHF-CCSD(T) cc-pVDZ energy for the \(^2\Sigma^+\) state of the CN radical, with Z-matrix input.
mints1	Symmetry tests for a range of molecules. This doesn’t actually compute any energies, but serves as an example of the many ways to specify geometries in Psi4.
dfmp2-grad5	Tests DF-MP2 gradient in the presence of a dipole field
pywrap-db3	Test that Python Molecule class processes geometry like psi4 Molecule class.
cc16	ROHF and UHF-B-CCD(T)/cc-pVDZ \(^{3}B_1\) CH2 single-point energy (fzc, MO-basis \(\langle ab|cd \rangle\) )
fci-h2o	6-31G H2O Test FCI Energy Point
ocepa1	OCEPA cc-pVDZ energy for the H2O molecule.
opt-multi-dimer-c2h	Multi-fragment opt of C2h methane dimer with user-combined reference points.
fd-freq-energy	SCF STO-3G finite-difference frequencies from energies
cc30	CCSD/sto-3g optical rotation calculation (length gauge only) at two frequencies on methyloxirane
numpy-array-interface	Numpy interface testing
ghosts	Density fitted MP2 cc-PVDZ/cc-pVDZ-RI computation of formic acid dimer binding energy using explicit specification of ghost atoms. This is equivalent to the dfmp2_1 sample but uses both (equivalent) specifications of ghost atoms in a manual counterpoise correction.
sapt3	SAPT2+3(CCD) aug-cc-pVDZ computation of the water dimer interaction energy, using the aug-cc-pVDZ-JKFIT DF basis for SCF and aug-cc-pVDZ-RI for SAPT.
mints4	A demonstration of mixed Cartesian/ZMatrix geometry specification, using variables, for the benzene-hydronium complex. Atoms can be placed using ZMatrix coordinates, whether they belong to the same fragment or not. Note that the Cartesian specification must come before the ZMatrix entries because the former define absolute positions, while the latter are relative.
tu4-h2o-freq	Optimization followed by frequencies H2O HF/cc-pVDZ
mp2p5-grad1	MP2.5 cc-pVDZ gradient for the H2O molecule.
dfmp2-grad3	DF-MP2 cc-pVDZ gradients for the H2O molecule.
dfomp2p5-1	DF-OMP2.5 cc-pVDZ energy for the H2O molecule.
omp3-3	OMP3 cc-pVDZ energy with B3LYP initial guess for the NO radical
dfomp3-2	DF-OMP3 cc-pVDZ energy for the H2O+ cation
pubchem1	Benzene vertical singlet-triplet energy difference computation, using the PubChem database to obtain the initial geometry, which is optimized at the HF/STO-3G level, before computing single point energies at the RHF, UHF and ROHF levels of theory.
opt2	SCF DZ allene geometry optimization, with Cartesian input, first in c2v symmetry, then in Cs symmetry from a starting point with a non-linear central bond angle.
dfomp2-3	OMP2 cc-pVDZ energy for the H2O molecule.
omp3-2	OMP3 cc-pVDZ energy with ROHF initial guess for the NO radical
ocepa3	OCEPA cc-pVDZ energy with ROHF initial guess for the NO radical
cisd-h2o+-1	6-31G** H2O+ Test CISD Energy Point
mcscf1	ROHF 6-31G** energy of the \(^{3}B_1\) state of CH2, with Z-matrix input. The occupations are specified explicitly.
dfomp2p5-grad2	DF-OMP2.5 cc-pVDZ gradients for the H2O+ cation.
props3	DF-SCF cc-pVDZ multipole moments of benzene, up to 7th order and electrostatic potentials evaluated at the nuclear coordinates
scf11-freq-from-energies	Test frequencies by finite differences of energies for planar C4NH4 TS
stability1	UHF->UHF stability analysis test for BH with cc-pVDZ Test direct SCF with and without symmetry, test PK without symmetry
cc29	CCSD/cc-pVDZ optical rotation calculation (both gauges) on Cartesian H2O2
ci-property	CI/MCSCF cc-pvDZ properties for Potassium nitrate (rocket fuel!)
cc37	CC2(UHF)/cc-pVDZ energy of H2O+.
sapt8	SAPT0(ROHF) open-shell computation of CN - Ne interaction energy First with jun-cc-pVDZ and density fitted integrals with ROHF Then with cc-pVDZ and direct integrals, except for dispersion that is computed with cc-pVDZ-ri density fitting with ROHF.
cc42	RHF-CC2-LR/STO-3G optical rotation of (S)-methyloxirane. gauge = length, omega = (589 355 nm)
opt-irc-2	Compute the IRC for HCN <-> NCH interconversion at the RHF/DZP level of theory.
cc3	cc3: RHF-CCSD/6-31G** H2O geometry optimization and vibrational frequency analysis by finite-differences of gradients
dft-freq	Frequencies for H2O B3LYP/6-31G* at optimized geometry
cc23	ROHF-EOM-CCSD/DZ analytic gradient lowest \(^{2}B_1\) state of H2O+ (A1 excitation)
fnocc3	Test FNO-QCISD(T) computation
scf3	File retention, docc, socc, and bond distances specified explicitly.
adc2	ADC/aug-cc-pVDZ on two water molecules that are distant from 1000 angstroms from each other
dfcasscf-sp	CASSCF/6-31G** energy point
opt10	6-31G MP2 transition-state optimization with initial, computed Hessian.
scf1	RHF cc-pVQZ energy for the BH molecule, with Cartesian input.
pubchem2	Superficial test of PubChem interface
omp2p5-1	OMP2 cc-pVDZ energy for the H2O molecule.
ao-dfcasscf-sp	CASSCF/6-31G** energy point
omp2-grad2	OMP2 cc-pVDZ gradient for the NO radical
dcft7	DCFT calculation for the triplet O2 using ODC-06 and ODC-12 functionals. Only simultaneous algorithm is tested.
scf-guess-read1	Sample UHF/cc-pVDZ H2O computation on a doublet cation, using RHF/cc-pVDZ orbitals for the closed-shell neutral as a guess
cc43	RHF-CC2-LR/STO-3G optical rotation of (S)-methyloxirane. gauge = both, omega = (589 355 nm)
cc41	RHF-CC2-LR/cc-pVDZ optical rotation of H2O2. gauge = both, omega = (589 355 nm)
molden2	Test of the superposition of atomic densities (SAD) guess, using a highly distorted water geometry with a cc-pVDZ basis set. This is just a test of the code and the user need only specify guess=sad to the SCF module’s (or global) options in order to use a SAD guess. The test is first performed in C2v symmetry, and then in C1.
dfcasscf-sa-sp	Example of state-averaged CASSCF for the C2 molecule
dfomp3-grad2	DF-OMP3 cc-pVDZ gradients for the H2O+ cation.
dfmp2-grad2	DF-MP2 cc-pVDZ gradient for the NO molecule.
cc38	RHF-CC2-LR/cc-pVDZ static polarizabilities of HOF molecule.
frac	Carbon/UHF Fractionally-Occupied SCF Test Case
cc34	RHF-CCSD/cc-pVDZ energy of H2O partitioned into pair energy contributions.
sapt2	SAPT0 aug-cc-pVDZ computation of the benzene-methane interaction energy, using the aug-pVDZ-JKFIT DF basis for SCF, the aug-cc-pVDZ-RI DF basis for SAPT0 induction and dispersion, and the aug-pVDZ-JKFIT DF basis for SAPT0 electrostatics and induction. This example uses frozen core as well as asyncronous I/O while forming the DF integrals and CPHF coefficients.
rasscf-sp	6-31G** H2O Test RASSCF Energy Point will default to only singles and doubles in the active space
omp2p5-grad1	OMP2.5 cc-pVDZ gradient for the H2O molecule.
cisd-sp	6-31G** H2O Test CISD Energy Point
opt-multi-frozen-dimer-c2h	Frozen-fragment opt of C2h methane dimer with user-combined reference points.
dfmp2-4	conventional and density-fitting mp2 test of mp2 itself and setting scs-mp2
cc54	CCSD dipole with user-specified basis set
pywrap-db1	Database calculation, so no molecule section in input file. Portions of the full databases, restricted by subset keyword, are computed by sapt0 and dfmp2 methods.
dfmp2-1	Density fitted MP2 cc-PVDZ/cc-pVDZ-RI computation of formic acid dimer binding energy using automatic counterpoise correction. Monomers are specified using Cartesian coordinates.
cc6	Frozen-core CCSD(T)/cc-pVDZ on C4H4N anion with disk ao algorithm
dft-dldf	Dispersionless density functional (dlDF+D) internal match to Psi4 Extensive testing has been done to match supplemental info of Szalewicz et. al., Phys. Rev. Lett., 103, 263201 (2009) and Szalewicz et. al., J. Phys. Chem. Lett., 1, 550-555 (2010)
dfccsdl1	DF-CCSDL cc-pVDZ energy for the H2O molecule.
fci-h2o-2	6-31G H2O Test FCI Energy Point
cdomp2-2	OMP2 cc-pVDZ energy for the NO molecule.
cepa-module	routing check on lccd, lccsd, cepa(0).
pywrap-basis	SAPT calculation on bimolecular complex where monomers are unspecified so driver auto-fragments it. Basis set and auxiliary basis sets are assigned by atom type.
cc17	Single point energies of multiple excited states with EOM-CCSD
castup3	SCF with various combinations of pk/density-fitting, castup/no-castup, and spherical/cartesian settings. Demonstrates that puream setting is getting set by orbital basis for all df/castup parts of calc. Demonstrates that answer doesn’t depend on presence/absence of castup. Demonstrates (by comparison to castup2) that output file doesn’t depend on options (scf_type) being set global or local. This input uses local.
scf4	RHF cc-pVDZ energy for water, automatically scanning the symmetric stretch and bending coordinates using Python’s built-in loop mechanisms. The geometry is specified using a Z-matrix with variables that are updated during the potential energy surface scan, and then the same procedure is performed using polar coordinates, converted to Cartesian coordinates.
cc15	RHF-B-CCD(T)/6-31G** H2O single-point energy (fzc, MO-basis \(\langle ab|cd \rangle\))
fnocc2	Test G2 method for H2O
opt4	SCF cc-pVTZ geometry optimzation, with Z-matrix input
dfmp2-grad1	DF-MP2 cc-pVDZ gradients for the H2O molecule.
props4	Electrostatic potential and electric field evaluated on a grid around water.
psimrcc-ccsd_t-2	Mk-MRCCSD(T) single point. \(^1A_1\) CH2 state described using the Ms = 0 component of the singlet. Uses RHF singlet orbitals.
cbs-xtpl-freq	Various gradients for a strained helium dimer and water molecule
cisd-h2o-clpse	6-31G** H2O Test CISD Energy Point with subspace collapse
rasci-h2o	RASCI/6-31G** H2O Energy Point
opt8	Various constrained energy minimizations of HOOH with cc-pvdz RHF. Cartesian-coordinate constrained optimizations of HOOH in Cartesians.
opt6	Various constrained energy minimizations of HOOH with cc-pvdz RHF Internal-coordinate constraints in internal-coordinate optimizations.
dfmp2-3	DF-MP2 cc-pVDZ frozen core gradient of benzene, computed at the DF-SCF cc-pVDZ geometry
cdomp2-1	OMP2 cc-pVDZ energy for the H2O molecule.
fsapt-diff1	This test case shows an example of running and analyzing a difference F-SAPT0/jun-cc-pvdz procedure for phenol dimer from the S22 database.
freq-isotope	Vibrational and thermo analysis of several water isotopologs. Demonstrates Hessian reuse for different temperatures and pressures but not for different isotopologs.
cc13a	UHF-CCSD(T)/cc-pVDZ \(^{3}B_1\) CH2 geometry optimization via analytic gradients
cc8c	ROHF-CCSD cc-pVDZ frozen-core energy for the \(^2\Sigma^+\) state of the CN radical, with Cartesian input.
props1	RHF STO-3G dipole moment computation, performed by applying a finite electric field and numerical differentiation.
cc45	RHF-EOM-CC2/cc-pVDZ lowest two states of each symmetry of H2O.
fnocc4	Test FNO-DF-CCSD(T) energy
tu3-h2o-opt	Optimize H2O HF/cc-pVDZ
cc9	UHF-CCSD(T) cc-pVDZ frozen-core energy for the \(^2\Sigma^+\) state of the CN radical, with Z-matrix input.
mcscf3	RHF 6-31G** energy of water, using the MCSCF module and Z-matrix input.
mints2	A test of the basis specification. A benzene atom is defined using a ZMatrix containing dummy atoms and various basis sets are assigned to different atoms. The symmetry of the molecule is automatically lowered to account for the different basis sets.
dcft8	DCFT calculation for the NH3+ radical using the ODC-12 and ODC-13 functionals. This performs both simultaneous and QC update of the orbitals and cumulant using DIIS extrapolation. Four-virtual integrals are first handled in the MO Basis for the first two energy computations. In the next computation ao_basis=disk algorithm is used, where the transformation of integrals for four-virtual case is avoided.
cc12	Single point energies of multiple excited states with EOM-CCSD
dft2	DFT Functional Test
cc8b	ROHF-CCSD cc-pVDZ frozen-core energy for the \(^2\Sigma^+\) state of the CN radical, with Cartesian input.
pywrap-molecule	Check that C++ Molecule class and qcdb molecule class are reading molecule input strings identically
opt1-fd	SCF STO-3G geometry optimzation, with Z-matrix input, by finite-differences
x2c2	Test of SFX2C-1e on Water cc-pVDZ-DK. In this test the Dirac equation is solved in the uncontracted cc-pVDZ-DK basis. The reference numbers are from Lan Cheng’s implementation in Cfour
cbs-xtpl-func	optimization with method defined via cbs
cubeprop	RHF orbitals and density for water.
omp3-1	OMP3 cc-pVDZ energy for the H2O molecule
fd-gradient	SCF STO-3G finite-difference tests
mints5	Tests to determine full point group symmetry. Currently, these only matter for the rotational symmetry number in thermodynamic computations.
sapt6	checks that all SAPT physical components (elst, exch, indc, disp) and total IE are being computed correctly for SAPT2+3(CCD)dMP2/aug-cc-pvdz and all lesser methods thereof.
cc4a	RHF-CCSD(T) cc-pVQZ frozen-core energy of the BH molecule, with Cartesian input. This version tests the FROZEN_DOCC option explicitly
matrix1	An example of using BLAS and LAPACK calls directly from the Psi input file, demonstrating matrix multiplication, eigendecomposition, Cholesky decomposition and LU decomposition. These operations are performed on vectors and matrices provided from the Psi library.
mp2-property	MP2 cc-pvDZ properties for Nitrogen oxide
pywrap-checkrun-rohf	This checks that all energy methods can run with a minimal input and set symmetry.
omp2p5-2	OMP2 cc-pVDZ energy for the H2O molecule.
dcft1	DC-06, DC-12, ODC-06 and ODC-12 calculation for the He dimer. This performs a simultaneous update of the orbitals and cumulant, using DIIS extrapolation. Four-virtual integrals are handled in the MO Basis.
opt7	Various constrained energy minimizations of HOOH with cc-pvdz RHF. For “fixed” coordinates, the final value is provided by the user.
sapt4	SAPT2+(3) aug-cc-pVDZ computation of the formamide dimer interaction energy, using the aug-cc-pVDZ-JKFIT DF basis for SCF and aug-cc-pVDZ-RI for SAPT. This example uses frozen core as well as MP2 natural orbital approximations.
cc26	Single-point gradient, analytic and via finite-differences of 2-1A1 state of H2O with EOM-CCSD
scf-guess-read2	Test if the the guess read in the same basis converges.
dft-pbe0-2	Internal match to psi4, test to match to literature values in litref.in/litref.out
gibbs	Test Gibbs free energies at 298 K of N2, H2O, and CH4.
props2	DF-SCF cc-pVDZ of benzene-hydronium ion, scanning the dissociation coordinate with Python’s built-in loop mechanism. The geometry is specified by a Z-matrix with dummy atoms, fixed parameters, updated parameters, and separate charge/multiplicity specifiers for each monomer. One-electron properties computed for dimer and one monomer.
cc50	EOM-CC3(ROHF) on CH radical with user-specified basis and properties for particular root
tu1-h2o-energy	Sample HF/cc-pVDZ H2O computation
opt3	SCF cc-pVDZ geometry optimzation, with Z-matrix input
psimrcc-pt2	Mk-MRPT2 single point. \(^1A_1\) F2 state described using the Ms = 0 component of the singlet. Uses TCSCF singlet orbitals.
scf-bz2	Benzene Dimer Out-of-Core HF/cc-pVDZ
cisd-opt-fd	H2O CISD/6-31G** Optimize Geometry by Energies
rasci-ne	Ne atom RASCI/cc-pVQZ Example of split-virtual CISD[TQ] from Sherrill and Schaefer, J. Phys. Chem. XXX This uses a “primary” virtual space 3s3p (RAS 2), a “secondary” virtual space 3d4s4p4d4f (RAS 3), and a “tertiary” virtual space consisting of the remaining virtuals. First, an initial CISD computation is run to get the natural orbitals; this allows a meaningful partitioning of the virtual orbitals into groups of different importance. Next, the RASCI is run. The split-virtual CISD[TQ] takes all singles and doubles, and all triples and quadruples with no more than 2 electrons in the secondary virtual subspace (RAS 3). If any electrons are present in the tertiary virtual subspace (RAS 4), then that excitation is only allowed if it is a single or double.
dcft9	UHF-ODC-12 and RHF-ODC-12 single-point energy for H2O. This performs a simultaneous update of orbitals and cumulants, using DIIS extrapolation. Four-virtual integrals are handled in the AO basis, where integral transformation is avoided. In the next RHF-ODC-12 computation, AO_BASIS=NONE is used, where four-virtual integrals are transformed into MO basis.
scf-occ	force occupations in scf
scf7	Tests SCF gradient in the presence of a dipole field
omp2-4	SCS-OMP2 cc-pVDZ geometry optimization for the H2O molecule.
pywrap-all	Intercalls among python wrappers- database, cbs, optimize, energy, etc. Though each call below functions individually, running them all in sequence or mixing up the sequence is aspirational at present. Also aspirational is using the intended types of gradients.
rasci-c2-active	6-31G* C2 Test RASCI Energy Point, testing two different ways of specifying the active space, either with the ACTIVE keyword, or with RAS1, RAS2, RESTRICTED_DOCC, and RESTRICTED_UOCC
cc21	ROHF-EOM-CCSD/DZ analytic gradient lowest \(^{2}A_1\) excited state of H2O+ (B1 excitation)
omp3-4	SCS-OMP3 cc-pVDZ geometry optimization for the H2O molecule.
dfomp2-4	OMP2 cc-pVDZ energy for the NO molecule.
mcscf2	TCSCF cc-pVDZ energy of asymmetrically displaced ozone, with Z-matrix input.
omp2-2	OMP2 cc-pVDZ energy with ROHF initial guess orbitals for the NO radical
cc33	CC3(UHF)/cc-pVDZ H2O \(R_e\) geom from Olsen et al., JCP 104, 8007 (1996)
pywrap-freq-e-sowreap	Finite difference of energies frequency, run in sow/reap mode.
cc51	EOM-CC3/cc-pVTZ on H2O
opt12	SCF cc-pVDZ geometry optimzation of ketene, starting from bent structure
molden1	Test of the superposition of atomic densities (SAD) guess, using a highly distorted water geometry with a cc-pVDZ basis set. This is just a test of the code and the user need only specify guess=sad to the SCF module’s (or global) options in order to use a SAD guess. The test is first performed in C2v symmetry, and then in C1.
psimrcc-ccsd_t-3	Mk-MRCCSD(T) single point. \(^1A_1\) CH2 state described using the Ms = 0 component of the singlet. Uses RHF singlet orbitals.
cc5	RHF CCSD(T) aug-cc-pvtz frozen-core energy of C4NH4 Anion
mints8	Patch of a glycine with a methyl group, to make alanine, then DF-SCF energy calculation with the cc-pVDZ basis set
psimrcc-fd-freq2	Mk-MRCCSD frequencies. \(^1A_1\) O$_3` state described using the Ms = 0 component of the singlet. Uses TCSCF orbitals.
cepa0-grad2	CEPA cc-pVDZ gradient for the NO radical
tu6-cp-ne2	Example potential energy surface scan and CP-correction for Ne2
sapt7	SAPT0 open-shell computation of H2O-HO2 interaction energy First with cc-pVDZ and density fitted integrals with UHF Then with 6-31g and direct integrals, except for dispersion that is computed with cc-pVDZ-ri density fitting with UHF.
scf-bs	UHF and broken-symmetry UHF energy for molecular hydrogen.
fci-tdm	He2+ FCI/cc-pVDZ Transition Dipole Moment
omp2p5-grad2	OMP2.5 cc-pVDZ gradient for the NO radical
fci-h2o-fzcv	6-31G H2O Test FCI Energy Point