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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: CCSD(T)=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at CCSD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-186.668534
Energy at 298.15K 
HF Energy-185.756509
Nuclear repulsion energy89.495594
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)=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/cc-pVQZ
ABC
8.82679 0.14253 0.14026

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVQZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.262 -0.596 0.000
C2 -0.262 0.596 0.000
N3 0.262 -1.844 0.000
N4 -0.262 1.844 0.000
H5 1.209 -2.221 0.000
H6 -1.209 2.221 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30261.24742.49561.88073.1784
C21.30262.49561.24743.17841.8807
N31.24742.49563.72431.01954.3228
N42.49561.24743.72434.32281.0195
H51.88073.17841.01954.32285.0578
H63.17841.88074.32281.01955.0578

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.279 C1 N3 H5 111.731
C2 C1 N3 156.279 C2 N4 H6 111.731
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability