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: CCD/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CCD/3-21G
 hartrees
Energy at 0K-314.243278
Energy at 298.15K 
HF Energy-313.552394
Nuclear repulsion energy210.675722
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 CCD/3-21G
Rotational Constants (cm-1) from geometry optimized at CCD/3-21G
ABC
0.09362 0.09138 0.04638

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.001 -0.044 0.000
C2 -0.001 1.296 0.000
N3 0.096 2.503 0.000
C4 -0.001 -0.768 1.243
C5 -0.001 -0.768 -1.243
N6 -0.001 -1.359 2.255
N7 -0.001 -1.359 -2.255
H8 -0.654 3.199 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33972.54811.43871.43872.61042.61043.3077
C21.33971.21052.40922.40923.48313.48312.0119
N32.54811.21053.49993.49994.47254.47251.0235
C41.43872.40923.49992.48641.17173.54784.2078
C51.43872.40923.49992.48643.54781.17174.2078
N62.61043.48314.47251.17173.54784.51015.1266
N72.61043.48314.47253.54781.17174.51015.1266
H83.30772.01191.02354.20784.20785.12665.1266

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 175.414 C1 C4 N6 179.933
C1 C5 N7 179.933 C2 C1 C4 120.215
C2 C1 C5 120.215 C2 N3 H8 128.278
C4 C1 C5 119.569
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability