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

using model chemistry: CCSD(T)/Def2TZVPP

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)/Def2TZVPP
 hartrees
Energy at 0K-316.663758
Energy at 298.15K 
HF Energy-315.437438
Nuclear repulsion energy211.536079
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)/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at CCSD(T)/Def2TZVPP
ABC
0.09336 0.09307 0.04678

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.008 -0.056 0.000
C2 -0.008 1.284 0.000
N3 0.139 2.485 0.000
C4 -0.008 -0.764 1.247
C5 -0.008 -0.764 -1.247
N6 -0.008 -1.336 2.261
N7 -0.008 -1.336 -2.261
H8 -0.667 3.105 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 C4 C5 N6 N7 H8
C11.34002.54501.43391.43392.59782.59783.2287
C21.34001.20972.39752.39753.46023.46021.9363
N32.54501.20973.48273.48274.44164.44161.0162
C41.43392.39753.48272.49421.16393.55424.1176
C51.43392.39753.48272.49423.55421.16394.1176
N62.59783.46024.44161.16393.55424.52165.0261
N72.59783.46024.44163.55421.16394.52165.0261
H83.22871.93631.01624.11764.11765.02615.0261

picture of Dicyanoketenimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N3 173.044 C1 C4 N6 179.855
C1 C5 N7 179.855 C2 C1 C4 119.573
C2 C1 C5 119.573 C2 N3 H8 120.645
C4 C1 C5 120.853
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability