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

using model chemistry: CISD/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 CISD/6-31G*
 hartrees
Energy at 0K-316.101935
Energy at 298.15K 
HF Energy-315.323508
Nuclear repulsion energy212.963285
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/6-31G*
Rotational Constants (cm-1) from geometry optimized at CISD/6-31G*
ABC
0.09473 0.09399 0.04734

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.003 -0.056 0.000
C2 -0.003 1.275 0.000
N3 0.114 2.467 0.000
C4 -0.003 -0.762 1.244
C5 -0.003 -0.762 -1.244
N6 -0.003 -1.324 2.248
N7 -0.003 -1.324 -2.248
H8 -0.681 3.091 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33152.52561.43071.43072.58112.58113.2194
C21.33151.19722.38732.38733.43673.43671.9382
N32.52561.19723.46233.46234.40884.40881.0109
C41.43072.38733.46232.48891.15043.53764.1054
C51.43072.38733.46232.48893.53761.15044.1054
N62.58113.43674.40881.15043.53764.49655.0007
N72.58113.43674.40883.53761.15044.49655.0007
H83.21941.93821.01094.10544.10545.00075.0007

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 174.382 C1 C4 N6 179.681
C1 C5 N7 179.681 C2 C1 C4 119.561
C2 C1 C5 119.561 C2 N3 H8 122.521
C4 C1 C5 120.878
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability