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III.F.2.

Completed calculations for CCH2 (vinylidene)

Methods and basis sets for which an energy has been calculated. "e" indicates just an energy has been calculated. "o" indicates an optimized geometry. "v" indicates vibrational frequencies. "s" followed by a number indicates completed calculations for different states (for example s1ov). "c" followed by a number indicates completed calculations for different conformations (for example c2ov).
See the Calculated Energies page (section III.A.1) for more calculated properties.
Methods with predefined basis sets
semi-empirical AM1 s1o s2o
PM3 s1o s2o
composite G1 s1e s2e
G2MP2 s1e s2e
G2 s1e s2e
G3 s1e s2e
G3MP2 s1e
CBS-Q s1e s2e
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 cc-pV(T+d)Z cc-pCVDZ cc-pCVTZ
hartree fock HF s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s1ov s2ov s1ov s2ov s1ov s1ov    
ROHF s1ov s1ov s1ov s1ov s1ov s1ov s1ov s1ov s1ov s1ov     s1ov s1ov   s1ov s1ov   s1ov    
density functional LSDA s1ov s1ov s1ov s1ov s1ov s1ov s1ov s1ov dnf       s1ov     s1ov          
SVWN   s2ov     s2ov   s2ov                            
BLYP s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov         s1ov    
B1B95 s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov       s1ov s2ov s1ov s2ov         s1ov    
B3LYP s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov   s1ov s2ov s1ov s2ov s1ov s2ov s1ov s1ov s2ov s1ov s2ov s1ov s1ov    
B3LYPultrafine         s1ov s2ov   s1ov                            
B3PW91 s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov         s1ov    
mPW1PW91 s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov         s1ov    
M06-2X         s2ov                                
PBEPBE s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov     s1ov   s1ov    
HSEh1PBE         s2ov                                
Moller Plesset perturbation MP2FC s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov   s1ov s2ov s1ov s2ov s1ov s2ov   s1ov s2ov s1ov s2ov   s1ov s1ov s1ov
MP2FU s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov   s1ov s1ov   s1ov s1ov s1ov
MP3         s2ov                                
MP4   s1ov s2ov     s1ov s2ov                                
B2PLYP         s2ov   s2ov                            
Configuration interaction CID   s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov                          
CISD   s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov                          
Quadratic configuration interaction QCISD s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov         s1ov    
QCISD(T)         s1ov s2ov   s1ov s2ov   s1ov s2ov                        
Coupled Cluster CCD s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov     s1ov s2ov s1ov s2ov         s1ov    
CCSD         s1ov s2ov   s1ov s2ov   s1ov s2ov                        
CCSD(T)         s1ov s2ov   s1ov s2ov   s1ov s2ov       s1ov s1ov   s1ov s1ov   s1ov s1ov s1ov
CCSD(T)=FULL         s1ov               s1ov s1ov   s1ov     s1ov s1ov s1ov
Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD
hartree fock HF s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov
density functional B1B95 s1ov s1ov        
B3LYP s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov
Moller Plesset perturbation MP2FC s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov s1ov s2ov
Single point energy calculations (select basis sets)
cc-pVTZ aug-cc-pVTZ cc-pV(T+d)Z
Moller Plesset perturbation MP2FC// B3LYP/6-31G* s1e s2e    
MP2FC// MP2FC/6-31G*   s2e  
Coupled Cluster CCSD(T)// B3LYP/6-31G* s1e s2e    
CCSD(T)//B3LYP/6-31G(2df,p) s1e   s1e
CCSD// MP2FC/6-31G*   s2e  
CCSD(T)// MP2FC/6-31G*   s2e  
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.