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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-186.311334
Energy at 298.15K 
HF Energy-185.710324
Nuclear repulsion energy88.973421
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 MP2/6-311G*
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 3456 3284 0.00 576.48 0.32 0.48
2 Ag 2070 1967 0.00 5.66 0.75 0.86
3 Ag 1196 1136 0.00 34.31 0.71 0.83
4 Ag 914 869 0.00 22.13 0.23 0.37
5 Ag 334 317 0.00 4.71 0.16 0.27
6 Au 970 922 143.25 0.00 0.00 0.00
7 Au 253 240 0.10 0.00 0.00 0.00
8 Bg 719 683 0.00 5.10 0.75 0.86
9 Bu 3456 3285 13.97 0.00 0.32 0.48
10 Bu 1708 1623 79.37 0.00 0.00 0.00
11 Bu 1143 1086 461.29 0.00 0.00 0.00
12 Bu 287 272 8.20 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8252.4 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 7842.2 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 MP2/6-311G*
ABC
8.23753 0.14158 0.13919

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.293 -0.588 0.000
C2 -0.293 0.588 0.000
N3 0.293 -1.844 0.000
N4 -0.293 1.844 0.000
H5 1.244 -2.224 0.000
H6 -1.244 2.224 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31461.25602.50211.89213.2052
C21.31462.50211.25603.20521.8921
N31.25602.50213.73471.02364.3491
N42.50211.25603.73474.34911.0236
H51.89213.20521.02364.34915.0969
H63.20521.89214.34911.02365.0969

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 153.481 C1 N3 H5 111.798
C2 C1 N3 153.481 C2 N4 H6 111.798
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability