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 HN=C=C(CN)2 (Dicyanoketenimine)

using model chemistry: B3PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/6-31G*
 hartrees
Energy at 0K-317.047402
Energy at 298.15K 
HF Energy-317.047402
Nuclear repulsion energy211.917996
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 B3PW91/6-31G*
Rotational Constants (cm-1) from geometry optimized at B3PW91/6-31G*
ABC
0.09370 0.09347 0.04696

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.061 0.000
C2 -0.007 1.282 0.000
N3 0.132 2.479 0.000
C4 -0.007 -0.763 1.243
C5 -0.007 -0.763 -1.243
N6 -0.007 -1.332 2.257
N7 -0.007 -1.332 -2.257
H8 -0.654 3.128 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34312.54361.42711.42712.59032.59033.2541
C21.34311.20472.39272.39273.45383.45381.9560
N32.54361.20473.47413.47414.43144.43141.0193
C41.42712.39273.47412.48571.16323.54584.1352
C51.42712.39273.47412.48573.54581.16324.1352
N62.59033.45384.43141.16323.54584.51375.0406
N72.59033.45384.43143.54581.16324.51375.0406
H83.25411.95601.01934.13524.13525.04065.0406

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.375 C1 C4 N6 179.896
C1 C5 N7 179.896 C2 C1 C4 119.441
C2 C1 C5 119.441 C2 N3 H8 122.954
C4 C1 C5 121.118
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.025      
2 C 0.493      
3 N -0.650      
4 C 0.362      
5 C 0.362      
6 N -0.469      
7 N -0.469      
8 H 0.394      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.452 5.251 0.000 5.448
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.292 -4.827 0.000
y -4.827 -33.911 0.000
z 0.000 0.000 -51.564
Traceless
 xyz
x 5.445 -4.827 0.000
y -4.827 10.517 0.000
z 0.000 0.000 -15.962
Polar
3z2-r2-31.925
x2-y2-3.381
xy-4.827
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.553 -0.025 0.000
y -0.025 11.796 0.000
z 0.000 0.000 9.018


<r2> (average value of r2) Å2
<r2> 210.464
(<r2>)1/2 14.507