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Calculated Frequencies for C4H6OS (4,5-dihydrothiophene-2-ol) 1A C1

19 07 18 15 43
InChI=1S/C4H6OS/c5-4-2-1-3-6-4/h2,5H,1,3H2 INChIKey=LKCHSNFSFPARNH-UHFFFAOYSA-N


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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 G3B3 freq
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 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    
BLYP         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   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 aug-cc-pVDZ aug-cc-pVTZ daug-cc-pVTZ
Moller Plesset perturbation MP2   freq     freq   freq freq       freq          
MP3=FULL         freq   freq                    
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 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                 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.
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