return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Home > Vibrations > Calculated > Frequencies OR Calculated > Vibrations > Frequencies

Calculated Frequencies for C6H12O2 (Methyl pivalate) 1A C1

19 07 18 15 43
InChI=1S/C6H12O2/c1-6(2,3)5(7)8-4/h1-4H3 INChIKey=CNMFHDIDIMZHKY-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 AM1 freq
PM3 freq
composite G2 freq
G3 freq
G3B3 freq
CBS-Q 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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVTZ
hartree fock HF freq freq freq freq   freq freq freq freq freq     freq freq freq freq freq freq freq
ROHF freq freq freq freq freq freq freq freq freq freq     freq freq freq freq freq    
density functional LSDA dnf dnf freq freq1 freq freq freq freq freq       freq freq freq freq      
BLYP freq freq1 freq1 freq freq freq freq freq freq freq     freq freq          
B1B95 freq freq freq freq1 freq freq freq freq freq freq     freq freq freq freq freq freq  
B3LYP freq freq freq freq freq freq freq freq freq freq     freq freq freq freq freq freq  
B3LYPultrafine         freq                            
B3PW91 freq freq freq freq freq freq freq freq freq freq     freq freq          
mPW1PW91 freq freq freq freq freq freq freq freq freq freq     freq freq          
M06-2X     freq                                
PBEPBE freq dnf freq1 freq       freq freq           freq     freq  
TPSSh                   freq                  
wB97X-D     freq   freq   freq   freq     freq freq freq     freq1    
B97D3   freq1     freq   freq1   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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVTZ
Moller Plesset perturbation MP2 freq freq freq freq freq freq freq freq freq       freq     dnf      
MP2=FULL freq freq freq freq freq     freq   freq     freq       freq    
MP3         freq                            
Configuration interaction CID   freq freq freq freq     freq                      
CISD   freq freq freq freq     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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ daug-cc-pVTZ
Quadratic configuration interaction QCISD     dnf dnf dnf     dnf         dnf            
Coupled Cluster CCD   dnf dnf dnf freq     dnf                      
CCSD         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 cc-pVQZ aug-cc-pVDZ aug-cc-pVTZ aug-cc-pVQZ 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 freq freq freq freq freq     freq
density functional B3LYP freq freq     dnf       freq
PBEPBE                 freq
Moller Plesset perturbation MP2 freq freq freq freq freq freq     freq
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.
Browse
PreviousNext