return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: QCISD/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-316.619772
Energy at 298.15K 
HF Energy-315.456291
Nuclear repulsion energy212.859078
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 3093 3093 9.83      
2 A1 2364 2364 0.38      
3 A1 849 849 6.74      
4 A1 575 575 0.38      
5 A1 168 168 24.32      
6 A2 352 352 0.00      
7 E 2363 2363 3.76      
7 E 2363 2363 3.76      
8 E 1320 1320 3.69      
8 E 1320 1320 3.69      
9 E 1048 1048 17.52      
9 E 1048 1048 17.52      
10 E 579 579 0.04      
10 E 579 579 0.04      
11 E 350 350 0.40      
11 E 350 350 0.40      
12 E 133 133 7.74      
12 E 133 133 7.74      

Unscaled Zero Point Vibrational Energy (zpe) 9492.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9492.9 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/Def2TZVPP
ABC
0.09529 0.09529 0.05018

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/Def2TZVPP

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.510
H2 0.000 0.000 1.603
C3 0.000 1.406 0.058
C4 1.217 -0.703 0.058
C5 -1.217 -0.703 0.058
N6 0.000 2.511 -0.272
N7 2.174 -1.255 -0.272
N8 -2.174 -1.255 -0.272

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.09261.47651.47651.47652.63002.63002.6300
H21.09262.08852.08852.08853.13383.13383.1338
C31.47652.08852.43462.43461.15363.45233.4523
C41.47652.08852.43462.43463.45231.15363.4523
C51.47652.08852.43462.43463.45233.45231.1536
N62.63003.13381.15363.45233.45234.34894.3489
N72.63003.13383.45231.15363.45234.34894.3489
N82.63003.13383.45233.45231.15364.34894.3489

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 178.821 C1 C4 N7 178.821
C1 C5 N8 178.821 H2 C1 C3 107.826
H2 C1 C4 107.826 H2 C1 C5 107.826
C3 C1 C4 111.065 C3 C1 C5 111.065
C4 C1 C5 111.065
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability