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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: G2

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at G2
 hartrees
Energy at 0K-186.513132
Energy at 298.15K-186.507688
HF Energy-185.674955
Nuclear repulsion energy90.561168
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 HF/6-31G*
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 3673 3461 0.00 626.47 0.32 0.48
2 Ag 2444 2303 0.00 84.27 0.35 0.51
3 Ag 1289 1214 0.00 15.51 0.73 0.85
4 Ag 1010 952 0.00 48.12 0.30 0.46
5 Ag 320 302 0.00 6.20 0.61 0.75
6 Au 1056 995 177.30 0.00 0.00 0.00
7 Au 275 260 0.97 0.00 0.00 0.00
8 Bg 702 662 0.00 15.48 0.75 0.86
9 Bu 3675 3463 19.33 0.00 0.00 0.00
10 Bu 1910 1800 315.10 0.00 0.00 0.00
11 Bu 1277 1203 406.28 0.00 0.00 0.00
12 Bu 313 295 11.74 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8972.6 cm-1
Scaled (by 0.9422) Zero Point Vibrational Energy (zpe) 8454.0 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=FULL/6-31G*
ABC
7.84646 0.14166 0.13915

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.311 -0.581 0.000
C2 -0.311 0.581 0.000
N3 0.311 -1.840 0.000
N4 -0.311 1.840 0.000
H5 1.268 -2.220 0.000
H6 -1.268 2.220 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31791.25942.49971.89803.2154
C21.31792.49971.25943.21541.8980
N31.25942.49973.73261.02924.3566
N42.49971.25943.73264.35661.0292
H51.89803.21541.02924.35665.1132
H63.21541.89804.35661.02925.1132

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 166.394 C1 N3 H5 112.604
C2 C1 N3 166.394 C2 N4 H6 112.604
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability