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All results from a given calculation for C(CN)4 (tetracyanomethane)

using model chemistry: B2PLYP=FULL/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at B2PLYP=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-409.102424
Energy at 298.15K-409.101034
HF Energy-408.649602
Nuclear repulsion energy321.026585
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP=FULL/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 2280 2193 0.00      
2 A1 583 561 0.00      
3 E 559 537 0.00      
3 E 559 537 0.00      
4 E 109 105 0.00      
4 E 109 105 0.00      
5 T1 327 314 0.00      
5 T1 327 314 0.00      
5 T1 327 314 0.00      
6 T2 2277 2190 16.04      
6 T2 2277 2190 16.04      
6 T2 2277 2190 16.04      
7 T2 1074 1033 33.32      
7 T2 1074 1033 33.32      
7 T2 1074 1033 33.32      
8 T2 545 525 0.02      
8 T2 545 525 0.02      
8 T2 545 525 0.02      
9 T2 143 138 13.40      
9 T2 143 138 13.40      
9 T2 143 138 13.40      

Unscaled Zero Point Vibrational Energy (zpe) 8648.4 cm-1
Scaled (by 0.9618) Zero Point Vibrational Energy (zpe) 8318.1 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULL/aug-cc-pVDZ
ABC
0.05044 0.05044 0.05044

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/aug-cc-pVDZ

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.859 0.859 0.859
C3 -0.859 -0.859 0.859
C4 -0.859 0.859 -0.859
C5 0.859 -0.859 -0.859
N6 1.533 1.533 1.533
N7 -1.533 -1.533 1.533
N8 -1.533 1.533 -1.533
N9 1.533 -1.533 -1.533

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48771.48771.48771.48772.65592.65592.65592.6559
C21.48772.42942.42942.42941.16823.44983.44983.4498
C31.48772.42942.42942.42943.44981.16823.44983.4498
C41.48772.42942.42942.42943.44983.44981.16823.4498
C51.48772.42942.42942.42943.44983.44983.44981.1682
N62.65591.16823.44983.44983.44984.33714.33714.3371
N72.65593.44981.16823.44983.44984.33714.33714.3371
N82.65593.44983.44981.16823.44984.33714.33714.3371
N92.65593.44983.44983.44981.16824.33714.33714.3371

picture of tetracyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N6 180.000 C1 C3 N7 180.000
C1 C4 N8 180.000 C1 C5 N9 180.000
C2 C1 C3 109.471 C2 C1 C4 109.471
C2 C1 C5 109.471 C3 C1 C4 109.471
C3 C1 C5 109.471 C4 C1 C5 109.471
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability