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: MP2=FULL/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 MP2=FULL/3-21G*
 hartrees
Energy at 0K-314.303689
Energy at 298.15K 
HF Energy-313.563663
Nuclear repulsion energy209.859328
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 MP2=FULL/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 3084 2924 7.05 72.15 0.21 0.34
2 A1 2131 2020 2.94 22.14 0.06 0.11
3 A1 852 808 10.82 6.30 0.15 0.26
4 A1 578 548 0.01 3.89 0.00 0.00
5 A1 189 180 14.31 2.33 0.71 0.83
6 A2 421 399 0.00 0.00 0.75 0.86
7 E 2133 2022 20.88 9.64 0.75 0.86
7 E 2133 2022 20.88 9.64 0.75 0.86
8 E 1357 1286 0.06 4.91 0.75 0.86
8 E 1357 1286 0.06 4.91 0.75 0.86
9 E 1002 950 16.17 3.30 0.75 0.86
9 E 1002 950 16.17 3.30 0.75 0.86
10 E 608 576 0.14 2.12 0.75 0.86
10 E 608 576 0.14 2.12 0.75 0.86
11 E 415 393 0.02 3.15 0.75 0.86
11 E 415 393 0.02 3.15 0.75 0.86
12 E 153 145 4.99 4.21 0.75 0.86
12 E 153 145 4.99 4.21 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9294.3 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 8811.0 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 MP2=FULL/3-21G*
ABC
0.09312 0.09312 0.04928

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/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 1.642
C3 0.000 1.407 0.070
C4 1.218 -0.703 0.070
C5 -1.218 -0.703 0.070
N6 0.000 2.539 -0.293
N7 2.199 -1.269 -0.293
N8 -2.199 -1.269 -0.293

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10121.48371.48371.48372.67252.67252.6725
H21.10122.10982.10982.10983.19263.19263.1926
C31.48372.10982.43682.43681.18893.48283.4828
C41.48372.10982.43682.43683.48281.18893.4828
C51.48372.10982.43682.43683.48283.48281.1889
N62.67253.19261.18893.48283.48284.39774.3977
N72.67253.19263.48281.18893.48284.39774.3977
N82.67253.19263.48283.48281.18894.39774.3977

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 179.279 C1 C4 N7 179.279
C1 C5 N8 179.279 H2 C1 C3 108.511
H2 C1 C4 108.511 H2 C1 C5 108.511
C3 C1 C4 110.415 C3 C1 C5 110.415
C4 C1 C5 110.415
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability