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

using model chemistry: QCISD/6-31G(2df,p)

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/6-31G(2df,p)
 hartrees
Energy at 0K-316.479008
Energy at 298.15K 
HF Energy-315.351328
Nuclear repulsion energy211.965027
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/6-31G(2df,p)
Rotational Constants (cm-1) from geometry optimized at QCISD/6-31G(2df,p)
ABC
0.09392 0.09322 0.04695

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.056 0.000
C2 -0.005 1.279 0.000
N3 0.126 2.479 0.000
C4 -0.005 -0.763 1.247
C5 -0.005 -0.763 -1.247
N6 -0.005 -1.331 2.259
N7 -0.005 -1.331 -2.259
H8 -0.681 3.095 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33482.53771.43311.43312.59382.59383.2221
C21.33481.20672.39222.39223.45153.45151.9373
N32.53771.20673.47523.47524.43064.43061.0151
C41.43312.39223.47522.49331.16073.55124.1098
C51.43312.39223.47522.49333.55121.16074.1098
N62.59383.45154.43061.16073.55124.51765.0143
N72.59383.45154.43063.55121.16074.51765.0143
H83.22211.93731.01514.10984.10985.01435.0143

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.760 C1 C4 N6 179.744
C1 C5 N7 179.744 C2 C1 C4 119.557
C2 C1 C5 119.557 C2 N3 H8 121.131
C4 C1 C5 120.886
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability