VSCF - cubic and quartic anharmonicities


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Dear all,

I have carried out a vscf calculation and I could find the VSCF anharmonic frequencies in the output. However, I am also looking for the cubic and quatric anharmonicities and I could not find them in the output or the ecce.out file.
Does anyone know if and how those can be extracted?

There are however several output files like the *.coup file but it is not clear to me what the numbers in this file actually represent.

Best wishes
Nicole