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All results from a given calculation for CH(CN)3 (tricyanomethane)

using model chemistry: QCISD/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C3V 1A1
Energy calculated at QCISD/6-31G
 hartrees
Energy at 0K-315.904103
Energy at 298.15K 
HF Energy-315.176250
Nuclear repulsion energy208.899339
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 QCISD/6-31G
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 3001 2892 2.95      
2 A1 2258 2176 0.31      
3 A1 834 804 13.51      
4 A1 560 539 0.00      
5 A1 157 152 18.84      
6 A2 308 297 0.00      
7 E 2258 2176 4.44      
7 E 2258 2176 4.44      
8 E 1333 1285 0.49      
8 E 1333 1285 0.49      
9 E 1011 974 25.62      
9 E 1011 974 25.62      
10 E 542 522 0.31      
10 E 542 522 0.31      
11 E 313 302 0.01      
11 E 313 302 0.01      
12 E 124 120 6.25      
12 E 124 120 6.25      

Unscaled Zero Point Vibrational Energy (zpe) 9139.2 cm-1
Scaled (by 0.9636) Zero Point Vibrational Energy (zpe) 8806.6 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 QCISD/6-31G
ABC
0.09190 0.09190 0.04833

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.512
H2 0.000 0.000 1.620
C3 0.000 1.426 0.059
C4 1.235 -0.713 0.059
C5 -1.235 -0.713 0.059
N6 0.000 2.561 -0.274
N7 2.218 -1.281 -0.274
N8 -2.218 -1.281 -0.274

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10781.49591.49591.49592.67932.67932.6793
H21.10782.11362.11362.11363.18563.18563.1856
C31.49592.11362.46962.46961.18363.51523.5152
C41.49592.11362.46962.46963.51521.18363.5152
C51.49592.11362.46962.46963.51523.51521.1836
N62.67933.18561.18363.51523.51524.43634.4363
N72.67933.18563.51521.18363.51524.43634.4363
N82.67933.18563.51523.51521.18364.43634.4363

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.778 C1 C4 N7 178.778
C1 C5 N8 178.778 H2 C1 C3 107.608
H2 C1 C4 107.608 H2 C1 C5 107.608
C3 C1 C4 111.269 C3 C1 C5 111.269
C4 C1 C5 111.269
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability