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

using model chemistry: CCSD(T)/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCSD(T)/6-31G(2df,p)
 hartrees
Energy at 0K-316.535111
Energy at 298.15K 
HF Energy-315.348464
Nuclear repulsion energy211.379986
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 CCSD(T)/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/6-31G(2df,p)
ABC
0.09338 0.09286 0.04673

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.007 -0.057 0.000
C2 -0.007 1.282 0.000
N3 0.136 2.485 0.000
C4 -0.007 -0.764 1.247
C5 -0.007 -0.764 -1.247
N6 -0.007 -1.335 2.264
N7 -0.007 -1.335 -2.264
H8 -0.670 3.106 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33922.54661.43301.43302.60012.60013.2321
C21.33921.21182.39572.39573.46093.46091.9408
N32.54661.21183.48303.48304.44364.44361.0178
C41.43302.39573.48302.49351.16713.55714.1195
C51.43302.39573.48302.49353.55711.16714.1195
N62.60013.46094.44361.16713.55714.52835.0294
N72.60013.46094.44363.55711.16714.52835.0294
H83.23211.94081.01784.11954.11955.02945.0294

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.182 C1 C4 N6 179.795
C1 C5 N7 179.795 C2 C1 C4 119.540
C2 C1 C5 119.540 C2 N3 H8 120.784
C4 C1 C5 120.921
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability