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III.F.2.

Completed calculations for C3O2 (Carbon suboxide)

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 c1o
composite G3 c1e
G3B3 c1e
G3MP2 c1e
G4 c1e
CBS-Q c1e

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
hartree fock HF c1ov c1ov c1ov c1ov c1ov c1ov c1ov   c2ov c2ov c2ov c1o c2ov c2ov c2ov c2ov c2ov c2ov
density functional LSDA c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov     c1ov c1ov c1ov   c1ov
SVWN   c1ov     c1ov   c1ov                    
BLYP c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1o c1ov c1ov     c1ov c1ov c2ov   c1ov
B1B95 c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov     c1ov c1ov c2ov   c1ov
B3LYP c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c2ov c1ov c1ov c2ov   c1ov
B3LYPultrafine         c1ov                     c1ov  
B3PW91 c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov     c1ov c1ov c2ov   c1ov
mPW1PW91 c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov     c1ov c2ov c2ov   c2ov
M06-2X         c1ov                        
PBEPBE c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov c1ov   c1ov c1ov c1ov   c1ov
PBEPBEultrafine         c1ov                        
PBE1PBE         c1ov                        
HSEh1PBE         c1ov                        
TPSSh         c1ov   c1ov                    
Moller Plesset perturbation MP2 c1ov c1ov c1ov c2ov c1ov c1ov c1ov c1ov c1ov c1ov   c1o c2ov c1ov c1ov     c1ov
MP2=FULL         c1ov c1ov c1ov c1ov c1ov                
MP3         c2ov   c1o                    
MP3=FULL         c1ov   c1ov                    
MP4                           c1ov      
B2PLYP         c1ov                 c1ov      
Configuration interaction CID         c1ov                        
CISD         c1ov                        
Quadratic configuration interaction QCISD   c1ov     c1o c1ov c1ov   c2ov                
Coupled Cluster CCD         c1ov                        
CCSD         c1ov                        
CCSD(T)         c1o                 c2ov     c2ov

Methods with effective core potentials (select basis sets)
CEP-31G CEP-31G* CEP-121G CEP-121G* LANL2DZ SDD
hartree fock HF c1ov c1ov c1ov c1ov c1ov c1ov
density functional B1B95 c1ov c1ov        
B3LYP c1ov c1ov c1ov c1ov c1ov c1ov
Moller Plesset perturbation MP2 c1ov c1ov c1ov c1ov c1ov c1ov

Single point energy calculations (select basis sets)
6-311+G(3df,2p) cc-pVDZ cc-pVTZ aug-cc-pVDZ aug-cc-pVTZ cc-pV(T+d)Z
Moller Plesset perturbation MP2FC// HF/6-31G*   c1e c1e     c1e
MP2FC// B3LYP/6-31G*   c1e        
MP2FC// MP2FC/6-31G* c1e c1e c1e c1e c1e c1e
MP4// HF/6-31G*   c1e        
MP4// MP2/6-31G* c1e          
Coupled Cluster CCSD// HF/6-31G*   c1e c1e     c1e
CCSD(T)// HF/6-31G*   c1e c1e     c1e
CCSD(T)//B3LYP/6-31G(2df,p)     c1e     c1e
CCSD// MP2FC/6-31G* c1e c1e c1e   c1e c1e
CCSD(T)// MP2FC/6-31G* c1e c1e c1e   c1e c1e
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.