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III.F.2.

Completed calculations for C6N4- (tetracyanoethylene anion)

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

Methods with standard basis sets
6-31G* 6-31+G** cc-pVTZ
hartree fock HF ov    
density functional TPSSh ov ov  
Moller Plesset perturbation MP3   o  
MP3=FULL ov o  
B2PLYP     ov
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.