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

using model chemistry: CCSD(T)/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 CCSD(T)/6-31G**
 hartrees
Energy at 0K-316.358550
Energy at 298.15K 
HF Energy-315.318255
Nuclear repulsion energy210.184890
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(T)/6-31G**
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/6-31G**
ABC
0.09212 0.09208 0.04622

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.010 -0.055 0.000
C2 -0.010 1.290 0.000
N3 0.149 2.502 0.000
C4 -0.010 -0.767 1.251
C5 -0.010 -0.767 -1.251
N6 -0.010 -1.346 2.274
N7 -0.010 -1.346 -2.274
H8 -0.664 3.116 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34542.56231.43951.43952.61492.61493.2378
C21.34541.22242.40792.40793.48163.48161.9393
N32.56231.22243.50413.50414.47274.47271.0193
C41.43952.40793.50412.50221.17543.57244.1317
C51.43952.40793.50412.50223.57241.17544.1317
N62.61493.48164.47271.17543.57244.54815.0506
N72.61493.48164.47273.57241.17544.54815.0506
H83.23781.93931.01934.13174.13175.05065.0506

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 172.500 C1 C4 N6 179.866
C1 C5 N7 179.866 C2 C1 C4 119.643
C2 C1 C5 119.643 C2 N3 H8 119.524
C4 C1 C5 120.714
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability