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: TPSSh/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 TPSSh/3-21G
 hartrees
Energy at 0K-315.457459
Energy at 298.15K 
HF Energy-315.457459
Nuclear repulsion energy212.179322
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 TPSSh/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 3039 2944 10.93 86.52 0.19 0.32
2 A1 2334 2261 0.58 67.60 0.07 0.13
3 A1 861 834 10.62 8.22 0.17 0.29
4 A1 593 575 0.01 3.98 0.00 0.01
5 A1 191 185 13.70 2.99 0.71 0.83
6 A2 445 431 0.00 0.00 0.75 0.86
7 E 2326 2253 2.63 24.25 0.75 0.86
7 E 2326 2253 2.63 24.25 0.75 0.86
8 E 1317 1276 0.04 5.28 0.75 0.86
8 E 1317 1276 0.04 5.28 0.75 0.86
9 E 1011 979 22.94 3.49 0.75 0.86
9 E 1011 979 22.94 3.49 0.75 0.86
10 E 630 610 0.21 3.07 0.75 0.86
10 E 630 610 0.21 3.08 0.75 0.86
11 E 443 429 0.10 3.66 0.75 0.86
11 E 443 429 0.10 3.66 0.75 0.86
12 E 154 150 4.72 5.02 0.75 0.86
12 E 154 150 4.72 5.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9612.0 cm-1
Scaled (by 0.9688) Zero Point Vibrational Energy (zpe) 9312.1 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 TPSSh/3-21G
ABC
0.09512 0.09512 0.05043

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

Point Group is C3v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.544
H2 0.000 0.000 1.647
C3 0.000 1.398 0.071
C4 1.210 -0.699 0.071
C5 -1.210 -0.699 0.071
N6 0.000 2.507 -0.295
N7 2.171 -1.253 -0.295
N8 -2.171 -1.253 -0.295

Atom - Atom Distances (Å)
  C1 H2 C3 C4 C5 N6 N7 N8
C11.10321.47541.47541.47542.64332.64332.6433
H21.10322.10642.10642.10643.17093.17093.1709
C31.47542.10642.42072.42071.16803.44593.4459
C41.47542.10642.42072.42073.44591.16803.4459
C51.47542.10642.42072.42073.44593.44591.1680
N62.64333.17091.16803.44593.44594.34184.3418
N72.64333.17093.44591.16803.44594.34184.3418
N82.64333.17093.44593.44591.16804.34184.3418

picture of tricyanomethane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C3 N6 179.570 C1 C4 N7 179.570
C1 C5 N8 179.570 H2 C1 C3 108.689
H2 C1 C4 108.689 H2 C1 C5 108.689
C3 C1 C4 110.242 C3 C1 C5 110.242
C4 C1 C5 110.242
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.522      
2 H 0.376      
3 C 0.478      
4 C 0.478      
5 C 0.478      
6 N -0.429      
7 N -0.429      
8 N -0.429      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 2.767 2.767
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.168 0.000 0.000
y 0.000 7.168 0.000
z 0.000 0.000 4.102


<r2> (average value of r2) Å2
<r2> 201.104
(<r2>)1/2 14.181