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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-316.338113
Energy at 298.15K 
HF Energy-315.339037
Nuclear repulsion energy211.437472
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 3125 2942 5.43      
2 A1 2360 2222 0.33      
3 A1 856 806 7.87      
4 A1 574 540 0.20      
5 A1 166 156 21.75      
6 A2 340 320 0.00      
7 E 2360 2221 4.77      
7 E 2360 2221 4.77      
8 E 1334 1256 3.45      
8 E 1334 1256 3.45      
9 E 1051 990 19.37      
9 E 1051 990 19.37      
10 E 568 535 0.00      
10 E 568 535 0.00      
11 E 343 323 0.27      
11 E 343 323 0.27      
12 E 130 123 7.13      
12 E 130 123 7.13      

Unscaled Zero Point Vibrational Energy (zpe) 9495.9 cm-1
Scaled (by 0.9414) Zero Point Vibrational Energy (zpe) 8939.5 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
0.09413 0.09413 0.04958

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 0.515
H2 0.000 0.000 1.610
C3 0.000 1.410 0.060
C4 1.221 -0.705 0.060
C5 -1.221 -0.705 0.060
N6 0.000 2.528 -0.275
N7 2.189 -1.264 -0.275
N8 -2.189 -1.264 -0.275

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.09451.48191.48191.48192.64842.64842.6484
H21.09452.09522.09522.09523.15323.15323.1532
C31.48192.09522.44292.44291.16663.47223.4722
C41.48192.09522.44292.44293.47221.16663.4722
C51.48192.09522.44292.44293.47223.47221.1666
N62.64843.15321.16663.47223.47224.37804.3780
N72.64843.15323.47221.16663.47224.37804.3780
N82.64843.15323.47223.47221.16664.37804.3780

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.854 C1 C4 N7 178.854
C1 C5 N8 178.854 H2 C1 C3 107.874
H2 C1 C4 107.874 H2 C1 C5 107.874
C3 C1 C4 111.020 C3 C1 C5 111.020
C4 C1 C5 111.020
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability