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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/aug-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 MP2/aug-cc-pVQZ
 hartrees
Energy at 0K-186.510597
Energy at 298.15K 
HF Energy-185.756728
Nuclear repulsion energy89.359762
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 MP2/aug-cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Ag 3443 3269 0.00 566.96 0.28 0.44
2 Ag 2091 1986 0.00 3.88 0.74 0.85
3 Ag 1149 1092 0.00 41.09 0.45 0.62
4 Ag 919 872 0.00 36.91 0.12 0.22
5 Ag 314 298 0.00 2.65 0.37 0.54
6 Au 952 904 113.78 0.00 0.75 0.86
7 Au 246 233 0.00 0.00 0.74 0.85
8 Bg 677 643 0.00 1.33 0.75 0.86
9 Bu 3443 3270 39.31 0.00 0.28 0.44
10 Bu 1704 1618 112.63 0.00 0.26 0.41
11 Bu 1111 1055 391.75 0.00 0.32 0.48
12 Bu 281 266 6.06 0.00 0.32 0.49

Unscaled Zero Point Vibrational Energy (zpe) 8164.3 cm-1
Scaled (by 0.9497) Zero Point Vibrational Energy (zpe) 7753.6 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at MP2/aug-cc-pVQZ
ABC
8.81147 0.14217 0.13991

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVQZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.264 -0.596 0.000
C2 -0.264 0.596 0.000
N3 0.264 -1.846 0.000
N4 -0.264 1.846 0.000
H5 1.210 -2.229 0.000
H6 -1.210 2.229 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30251.25002.49741.88823.1862
C21.30252.49741.25003.18621.8882
N31.25002.49743.72861.02174.3332
N42.49741.25003.72864.33321.0217
H51.88823.18621.02174.33325.0732
H63.18621.88824.33321.02175.0732

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.131 C1 N3 H5 112.051
C2 C1 N3 156.131 C2 N4 H6 112.051
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability