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

using model chemistry: QCISD(T)=FULL/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 QCISD(T)=FULL/6-31G*
 hartrees
Energy at 0K-316.380887
Energy at 298.15K 
HF Energy-315.314146
Nuclear repulsion energy210.328893
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(T)=FULL/6-31G*
Rotational Constants (cm-1) from geometry optimized at QCISD(T)=FULL/6-31G*
ABC
0.09229 0.09221 0.04630

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.055 0.000
C2 -0.010 1.289 0.000
N3 0.149 2.500 0.000
C4 -0.010 -0.766 1.250
C5 -0.010 -0.766 -1.250
N6 -0.010 -1.346 2.272
N7 -0.010 -1.346 -2.272
H8 -0.660 3.128 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34412.55981.43791.43792.61262.61263.2489
C21.34411.22122.40552.40553.47883.47881.9506
N32.55981.22123.50083.50084.46924.46921.0245
C41.43792.40553.50082.49911.17473.56844.1415
C51.43792.40553.50082.49913.56841.17474.1415
N62.61263.47884.46921.17473.56844.54315.0594
N72.61263.47884.46923.56841.17474.54315.0594
H83.24891.95061.02454.14154.14155.05945.0594

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.520 C1 C4 N6 179.887
C1 C5 N7 179.887 C2 C1 C4 119.657
C2 C1 C5 119.657 C2 N3 H8 120.342
C4 C1 C5 120.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability