input and
output for the calculation of harmonic vibrational frequencies at the RHF-SCF level

input and
output for the calculation of harmonic vibrational frequencies at the RHF-MP2 level

input and
output for the calculation of harmonic vibrational frequencies at the RHF-CCSD level

input and
output for the calculation of harmonic vibrational frequencies at the RHF-CCSD(T) level

input and
output for the calculation of harmonic vibrational frequencies at the RHF-CCSDT level

input and
output for the calculation of harmonic vibrational frequencies at the RHF-CCSD(T) level using the frozen-core approximation

input and
output for the calculation of harmonic vibrational frequencies at the UHF-SCF level

input and
output for the calculation of harmonic vibrational frequencies at the UHF-MP2 level

input and
output for the calculation of harmonic vibrational frequencies at the UHF-CCSD level

input and
output for the calculation of harmonic vibrational frequencies at the UHF-CCSD(T) level

input and
output for the calculation of harmonic vibrational frequencies at the UHF-CCSD(T) level using the frozen-core approximation

input and
output for the calculation of harmonic vibrational frequencies at the ROHF-SCF level

input and
output for the calculation of harmonic vibrational frequencies at the ROHF-MP2 level

input and
output for the calculation of harmonic vibrational frequencies at the ROHF-CCSD level

input and
output for the calculation of harmonic vibrational frequencies at the ROHF-CCSD(T) level

input and
output for the calculation of harmonic vibrational frequencies at the ROHF-CCSD(T) level using the frozen-core approximation

input and
output for the calculation of harmonic vibrational frequencies at the RHF-CCSD level using just single-point energies

input and
output for the calculation of harmonic vibrational frequencies of
A symmetry at the RHF-CCSD level for H2O2 (C2 symmetry)