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

using model chemistry: CCSD(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 CCSD(T)=FULL/6-31G*
 hartrees
Energy at 0K-316.378932
Energy at 298.15K 
HF Energy-315.314476
Nuclear repulsion energy210.401002
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)=FULL/6-31G*
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/6-31G*
ABC
0.09232 0.09230 0.04633

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 -0.055 0.000
C2 -0.009 1.289 0.000
N3 0.146 2.499 0.000
C4 -0.009 -0.766 1.249
C5 -0.009 -0.766 -1.249
N6 -0.009 -1.345 2.271
N7 -0.009 -1.345 -2.271
H8 -0.666 3.125 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34392.55911.43751.43752.61172.61173.2473
C21.34391.22042.40502.40503.47753.47751.9501
N32.55911.22043.49983.49984.46744.46741.0245
C41.43752.40503.49982.49841.17423.56754.1394
C51.43752.40503.49982.49843.56751.17424.1394
N62.61173.47754.46741.17423.56754.54235.0564
N72.61173.47754.46743.56751.17424.54235.0564
H83.24731.95011.02454.13944.13945.05645.0564

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.706 C1 C4 N6 179.852
C1 C5 N7 179.852 C2 C1 C4 119.653
C2 C1 C5 119.653 C2 N3 H8 120.358
C4 C1 C5 120.694
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability