TURBOMOLE Users Forum
TURBOMOLE Modules => Ricc2 => Topic started by: tayed on October 10, 2011, 09:03:44 AM
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Hi everybody,
I'm trying two do two do two component ricc2, the job is ended normally, but i have a questiion
in the output ricc2.out i have this information:
Energy of reference wave function is 0.0000000000000 I can't unterstand why?
Normally this value must be equal to the wave function fund on ridft calculation?
Any explication
Thanks in advance
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Hi,
Isn't the two-component formalism implemented only for HF and DFT calculations(at least according to manual)?
Best wishes,
Antti
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Hello,
you are both right: ricc2 is able to do two-component MP2 energy calculations, but this is not printed in the documentation (unfortunately).
Tayed: The energy of the Hartree-Fock step in ricc2 is simply read from the $energy keyword and is not re-computed from the orbitals. So ricc2 itself only computes the correlation energy. If the HF energy is zero, then you did start ricc2 from a job which did not contain an entry in the $energy section. In most cases $energy is written to an own file called energy - I guess you did copy the input files without energy and started ricc2 in the new directory ?
Regards,
Uwe