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

using model chemistry: QCISD/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at QCISD/6-311G*
 hartrees
Energy at 0K-316.409649
Energy at 298.15K 
HF Energy-315.386640
Nuclear repulsion energy211.285750
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 QCISD/6-311G*
Rotational Constants (cm-1) from geometry optimized at QCISD/6-311G*
ABC
0.09304 0.09285 0.04664

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.054 0.000
C2 -0.007 1.286 0.000
N3 0.134 2.489 0.000
C4 -0.007 -0.766 1.250
C5 -0.007 -0.766 -1.250
N6 -0.007 -1.338 2.263
N7 -0.007 -1.338 -2.263
H8 -0.673 3.108 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34052.54681.43881.43882.60152.60153.2313
C21.34051.21072.40322.40323.46513.46511.9394
N32.54681.21073.48963.48964.44794.44791.0169
C41.43882.40323.48962.50061.16273.55924.1248
C51.43882.40323.48962.50063.55921.16274.1248
N62.60153.46514.44791.16273.55924.52525.0328
N72.60153.46514.44793.55921.16274.52525.0328
H83.23131.93941.01694.12484.12485.03285.0328

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.313 C1 C4 N6 179.812
C1 C5 N7 179.812 C2 C1 C4 119.656
C2 C1 C5 119.656 C2 N3 H8 120.817
C4 C1 C5 120.687
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability