The MCSCF/CASSCF hessian can be computed analytically (only without symmetry) using

`CPMCSCF,HESS,[ACCU=`*value*]

where the `ACCU` option specifies the convergence threshold in the
CPMCSCF calculation (default 1.d-4). The hessian is stored on record 5300.2
and can be used in a subsequent frequency calculation.

Example:

{multi;cpmcscf,hess,accu=1.d-5} frequencies

Note that the `NOEXTRA` option is used when computing a hessian.

molpro@molpro.net 2017-12-11