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

using model chemistry: MP3=FULL/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes TD 1A1
Energy calculated at MP3=FULL/TZVP
 hartrees
Energy at 0K-408.589339
Energy at 298.15K-408.588111
HF Energy-407.156225
Nuclear repulsion energy324.526189
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 MP3=FULL/TZVP
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 2496 2331 0.00      
2 A1 600 561 0.00      
3 E 579 540 0.00      
3 E 579 540 0.00      
4 E 113 106 0.00      
4 E 113 106 0.00      
5 T1 334 312 0.00      
5 T1 334 312 0.00      
5 T1 334 312 0.00      
6 T2 2482 2317 8.26      
6 T2 2482 2317 8.26      
6 T2 2482 2317 8.26      
7 T2 1131 1056 38.56      
7 T2 1131 1056 38.56      
7 T2 1131 1056 38.56      
8 T2 573 535 0.10      
8 T2 573 535 0.10      
8 T2 573 535 0.10      
9 T2 147 138 13.76      
9 T2 147 138 13.76      
9 T2 147 138 13.76      

Unscaled Zero Point Vibrational Energy (zpe) 9238.9 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 8626.3 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 MP3=FULL/TZVP
ABC
0.05144 0.05144 0.05144

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/TZVP

Point Group is Td

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.000
C2 0.855 0.855 0.855
C3 -0.855 -0.855 0.855
C4 -0.855 0.855 -0.855
C5 0.855 -0.855 -0.855
N6 1.516 1.516 1.516
N7 -1.516 -1.516 1.516
N8 -1.516 1.516 -1.516
N9 1.516 -1.516 -1.516

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 N6 N7 N8 N9
C11.48121.48121.48121.48122.62602.62602.62602.6260
C21.48122.41872.41872.41871.14483.41803.41803.4180
C31.48122.41872.41872.41873.41801.14483.41803.4180
C41.48122.41872.41872.41873.41803.41801.14483.4180
C51.48122.41872.41872.41873.41803.41803.41801.1448
N62.62601.14483.41803.41803.41804.28824.28824.2882
N72.62603.41801.14483.41803.41804.28824.28824.2882
N82.62603.41803.41801.14483.41804.28824.28824.2882
N92.62603.41803.41803.41801.14484.28824.28824.2882

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