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

using model chemistry: QCISD/cc-pVTZ

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/cc-pVTZ
 hartrees
Energy at 0K-316.593018
Energy at 298.15K 
HF Energy-315.428673
Nuclear repulsion energy212.201932
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/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at QCISD/cc-pVTZ
ABC
0.09401 0.09348 0.04705

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.055 0.000
C2 -0.005 1.280 0.000
N3 0.127 2.477 0.000
C4 -0.005 -0.763 1.246
C5 -0.005 -0.763 -1.246
N6 -0.005 -1.330 2.255
N7 -0.005 -1.330 -2.255
H8 -0.683 3.086 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33472.53571.43301.43302.59052.59053.2134
C21.33471.20492.39242.39243.44903.44901.9294
N32.53571.20493.47373.47374.42704.42701.0137
C41.43302.39243.47372.49241.15753.54684.1017
C51.43302.39243.47372.49243.54681.15754.1017
N62.59053.44904.42701.15753.54684.50985.0048
N72.59053.44904.42703.54681.15754.50985.0048
H83.21341.92941.01374.10174.10175.00485.0048

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.678 C1 C4 N6 179.786
C1 C5 N7 179.786 C2 C1 C4 119.585
C2 C1 C5 119.585 C2 N3 H8 120.596
C4 C1 C5 120.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability