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Calculated Frequencies for C6H6O (2,4-Cyclohexadienone) 1A Cs

19 07 18 15 43
InChI=1S/C6H6O/c7-6-4-2-1-3-5-6/h1-4H,5H2 INChIKey=WQPDQJCBHQPNCZ-UHFFFAOYSA-N


Click on an entry for details. A subscript indicates the number of imaginary frequencies.
An R subscript indicates raman activity data is available.
For a comparison of experimental versus calculated see section IV.C.1 Compare vibrational frequencies
Methods with predefined basis sets
semi-empirical PM6 freq
composite G4 freq

Methods with standard basis sets
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z daug-cc-pVTZ
hartree fock HF   freq     freq   freq       freq freq           freq
density functional LSDA freq freq freq freq freq freq freq freq freq freq     freq freq freq   freq  
BLYP         freq                          
B1B95             freq                      
B3LYP   freq     freq   freq     freq   freq       freq    
B3LYPultrafine                               freq    
M06-2X     freq                              
TPSSh         freq   freq     freq       freq        
wB97X-D     freq   freq   freq   freq     freq freq freq   freq    
B97D3   freq     freq   freq   freq   freq1 freq1   freq1   freq1    
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z daug-cc-pVTZ
Moller Plesset perturbation MP2         freq1     freq1       freq2            
MP3=FULL         freq   freq1                      
B2PLYP                           freq        
STO-3G 3-21G 3-21G* 6-31G 6-31G* 6-31G** 6-31+G** 6-311G* 6-311G** 6-31G(2df,p) 6-311+G(3df,2p) TZVP cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z daug-cc-pVTZ

Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD cc-pVTZ-PP aug-cc-pVTZ-PP Def2TZVPP
hartree fock HF                 freq
density functional B1B95 freq freq              
B3LYP                 freq
PBEPBE                 freq
Moller Plesset perturbation MP2                 freq1
For descriptions of the methods (AM1, HF, MP2, ...) and basis sets (3-21G, 3-21G*, 6-31G, ...) see the glossary in section I.C. Predefined means the basis set used is determined by the method.
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