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All results from a given calculation for HN=C=C(CN)2 (Dicyanoketenimine)

using model chemistry: CISD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CISD/3-21G
 hartrees
Energy at 0K-314.124281
Energy at 298.15K 
HF Energy-313.558417
Nuclear repulsion energy212.611375
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 CISD/3-21G
Rotational Constants (cm-1) from geometry optimized at CISD/3-21G
ABC
0.09486 0.09338 0.04718

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.002 -0.052 0.000
C2 0.002 1.284 0.000
N3 0.078 2.474 0.000
C4 0.002 -0.763 1.237
C5 0.002 -0.763 -1.237
N6 0.002 -1.341 2.240
N7 0.002 -1.341 -2.240
H8 -0.617 3.209 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33582.52631.42671.42672.58462.58463.3184
C21.33581.19182.39162.39163.45083.45082.0215
N32.52631.19183.46543.46544.42414.42411.0120
C41.42672.39163.46542.47361.15793.52464.2052
C51.42672.39163.46542.47363.52461.15794.2052
N62.58463.45084.42411.15793.52464.48025.1085
N72.58463.45084.42413.52461.15794.48025.1085
H83.31842.02151.01204.20524.20525.10855.1085

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 176.323 C1 C4 N6 179.952
C1 C5 N7 179.952 C2 C1 C4 119.898
C2 C1 C5 119.898 C2 N3 H8 132.893
C4 C1 C5 120.204
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability