:term:`PUREAM <PUREAM (GLOBALS)>`
"""""""""""""""""""""""""""""""""

      Do use pure angular momentum basis functions? If not explicitly set, the default comes from the basis set. **Cfour Interface:** Keyword translates into :term:`CFOUR_SPHERICAL <CFOUR_SPHERICAL (CFOUR)>` 

      * **Type**: :ref:`boolean <op_c_boolean>`
      * **Default**: true