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

using model chemistry: QCISD(T)/TZVP

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)/TZVP
 hartrees
Energy at 0K-316.493930
Energy at 298.15K 
HF Energy-315.413231
Nuclear repulsion energy211.330442
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)/TZVP
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/TZVP
ABC
0.09334 0.09282 0.04672

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.012 -0.052 0.000
C2 -0.012 1.288 0.000
N3 0.159 2.489 0.000
C4 -0.012 -0.764 1.245
C5 -0.012 -0.764 -1.245
N6 -0.012 -1.342 2.257
N7 -0.012 -1.342 -2.257
H8 -0.646 3.115 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33912.54671.43451.43452.60032.60033.2290
C21.33911.21402.39972.39973.46583.46581.9339
N32.54671.21403.48763.48764.45054.45051.0193
C41.43452.39973.48762.49041.16583.55004.1224
C51.43452.39973.48762.49043.55001.16584.1224
N62.60033.46584.45051.16583.55004.51475.0360
N72.60033.46584.45053.55001.16584.51475.0360
H83.22901.93391.01934.12244.12245.03605.0360

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 171.897 C1 C4 N6 179.979
C1 C5 N7 179.979 C2 C1 C4 119.770
C2 C1 C5 119.770 C2 N3 H8 119.725
C4 C1 C5 120.460
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability