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

using model chemistry: QCISD(T)/Def2TZVPP

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)/Def2TZVPP
 hartrees
Energy at 0K-316.665814
Energy at 298.15K 
HF Energy-315.437119
Nuclear repulsion energy211.467642
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)/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at QCISD(T)/Def2TZVPP
ABC
0.09333 0.09299 0.04675

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 -0.056 0.000
C2 -0.008 1.284 0.000
N3 0.139 2.485 0.000
C4 -0.008 -0.764 1.247
C5 -0.008 -0.764 -1.247
N6 -0.008 -1.336 2.262
N7 -0.008 -1.336 -2.262
H8 -0.666 3.106 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34032.54601.43411.43412.59862.59863.2300
C21.34031.21042.39802.39803.46103.46101.9370
N32.54601.21043.48373.48374.44274.44271.0162
C41.43412.39803.48372.49461.16453.55554.1189
C51.43412.39803.48372.49463.55551.16454.1189
N62.59863.46104.44271.16453.55554.52385.0276
N72.59863.46104.44273.55551.16454.52385.0276
H83.23001.93701.01624.11894.11895.02765.0276

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.012 C1 C4 N6 179.827
C1 C5 N7 179.827 C2 C1 C4 119.569
C2 C1 C5 119.569 C2 N3 H8 120.656
C4 C1 C5 120.861
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability