return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: CISD/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 CISD/6-31G
 hartrees
Energy at 0K-315.736415
Energy at 298.15K 
HF Energy-315.169604
Nuclear repulsion energy211.199352
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 CISD/6-31G
Rotational Constants (cm-1) from geometry optimized at CISD/6-31G
ABC
0.09368 0.09213 0.04657

See section I.F.4 to change rotational constant units
Geometric Data calculated at CISD/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.009 -0.052 0.000
C2 -0.009 1.292 0.000
N3 0.125 2.489 0.000
C4 -0.009 -0.768 1.243
C5 -0.009 -0.768 -1.243
N6 -0.009 -1.350 2.255
N7 -0.009 -1.350 -2.255
H8 -0.542 3.244 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34422.54451.43451.43452.60152.60153.3394
C21.34421.20432.40592.40593.47323.47322.0239
N32.54451.20433.48843.48844.45384.45381.0082
C41.43452.40593.48842.48661.16703.54624.2341
C51.43452.40593.48842.48663.54621.16704.2341
N62.60153.47324.45381.16703.54624.50965.1453
N72.60153.47324.45383.54621.16704.50965.1453
H83.33942.02391.00824.23414.23415.14535.1453

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.597 C1 C4 N6 179.992
C1 C5 N7 179.992 C2 C1 C4 119.923
C2 C1 C5 119.923 C2 N3 H8 132.139
C4 C1 C5 120.153
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability