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

using model chemistry: CCSD/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 CCSD/cc-pVTZ
 hartrees
Energy at 0K-316.588670
Energy at 298.15K 
HF Energy-315.429232
Nuclear repulsion energy212.343407
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 CCSD/cc-pVTZ
Rotational Constants (cm-1) from geometry optimized at CCSD/cc-pVTZ
ABC
0.09411 0.09361 0.04710

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.005 -0.054 0.000
C2 -0.005 1.279 0.000
N3 0.125 2.476 0.000
C4 -0.005 -0.762 1.246
C5 -0.005 -0.762 -1.246
N6 -0.005 -1.330 2.253
N7 -0.005 -1.330 -2.253
H8 -0.688 3.082 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.33382.53361.43281.43282.58892.58893.2096
C21.33381.20352.39172.39173.44733.44731.9273
N32.53361.20353.47193.47194.42444.42441.0138
C41.43282.39173.47192.49161.15613.54464.0981
C51.43282.39173.47192.49163.54461.15614.0981
N62.58893.44734.42441.15613.54464.50615.0003
N72.58893.44734.42443.54461.15614.50615.0003
H83.20961.92731.01384.09814.09815.00035.0003

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.793 C1 C4 N6 179.791
C1 C5 N7 179.791 C2 C1 C4 119.603
C2 C1 C5 119.603 C2 N3 H8 120.494
C4 C1 C5 120.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability