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

using model chemistry: QCISD/3-21G*

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/3-21G*
 hartrees
Energy at 0K-314.290103
Energy at 298.15K 
HF Energy-313.573315
Nuclear repulsion energy210.666458
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/3-21G*
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 3045 2926 5.45      
2 A1 2299 2210 1.01      
3 A1 854 821 11.98      
4 A1 581 559 0.08      
5 A1 191 184 15.44      
6 A2 420 404 0.00      
7 E 2296 2206 7.80      
7 E 2296 2206 7.80      
8 E 1350 1297 0.02      
8 E 1350 1297 0.02      
9 E 1008 969 21.79      
9 E 1008 969 21.79      
10 E 612 588 0.04      
10 E 612 588 0.04      
11 E 419 402 0.00      
11 E 419 402 0.00      
12 E 155 148 5.21      
12 E 155 148 5.21      

Unscaled Zero Point Vibrational Energy (zpe) 9533.6 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 9162.7 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/3-21G*
ABC
0.09363 0.09363 0.04955

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/3-21G*

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.541
H2 0.000 0.000 1.645
C3 0.000 1.412 0.068
C4 1.223 -0.706 0.068
C5 -1.223 -0.706 0.068
N6 0.000 2.528 -0.291
N7 2.189 -1.264 -0.291
N8 -2.189 -1.264 -0.291

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10381.48871.48871.48872.66152.66152.6615
H21.10382.11602.11602.11603.18423.18423.1842
C31.48872.11602.44512.44511.17283.47593.4759
C41.48872.11602.44512.44513.47591.17283.4759
C51.48872.11602.44512.44513.47593.47591.1728
N62.66153.18421.17283.47593.47594.37864.3786
N72.66153.18423.47591.17283.47594.37864.3786
N82.66153.18423.47593.47591.17284.37864.3786

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 179.353 C1 C4 N7 179.353
C1 C5 N8 179.353 H2 C1 C3 108.508
H2 C1 C4 108.507 H2 C1 C5 108.507
C3 C1 C4 110.418 C3 C1 C5 110.418
C4 C1 C5 110.418
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability