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

using model chemistry: CISD/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 CISD/3-21G*
 hartrees
Energy at 0K-314.152214
Energy at 298.15K 
HF Energy-313.581771
Nuclear repulsion energy213.160117
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 CISD/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 3150 2944 10.48      
2 A1 2471 2309 0.20      
3 A1 905 846 12.00      
4 A1 615 575 0.38      
5 A1 202 189 17.80      
6 A2 454 424 0.00      
7 E 2462 2300 2.30      
7 E 2462 2300 2.30      
8 E 1400 1308 0.00      
8 E 1400 1308 0.00      
9 E 1066 996 29.76      
9 E 1066 996 29.76      
10 E 653 610 0.02      
10 E 653 610 0.02      
11 E 452 422 0.00      
11 E 452 422 0.00      
12 E 163 152 5.99      
12 E 163 152 5.99      

Unscaled Zero Point Vibrational Energy (zpe) 10093.4 cm-1
Scaled (by 0.9344) Zero Point Vibrational Energy (zpe) 9431.2 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 CISD/3-21G*
ABC
0.09576 0.09576 0.05066

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.534
H2 0.000 0.000 1.629
C3 0.000 1.399 0.066
C4 1.212 -0.700 0.066
C5 -1.212 -0.700 0.066
N6 0.000 2.498 -0.287
N7 2.164 -1.249 -0.287
N8 -2.164 -1.249 -0.287

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.09521.47551.47551.47552.62982.62982.6298
H21.09522.09802.09802.09803.14843.14843.1484
C31.47552.09802.42362.42361.15443.43813.4381
C41.47552.09802.42362.42363.43811.15443.4381
C51.47552.09802.42362.42363.43813.43811.1544
N62.62983.14841.15443.43813.43814.32754.3275
N72.62983.14843.43811.15443.43814.32754.3275
N82.62983.14843.43813.43811.15444.32754.3275

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 179.290 C1 C4 N7 179.290
C1 C5 N8 179.290 H2 C1 C3 108.493
H2 C1 C4 108.493 H2 C1 C5 108.493
C3 C1 C4 110.432 C3 C1 C5 110.432
C4 C1 C5 110.432
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability