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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/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/cc-pVQZ
 hartrees
Energy at 0K-186.504259
Energy at 298.15K 
HF Energy-185.756044
Nuclear repulsion energy89.397469
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/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 3444 3266 0.00 581.12 0.29 0.45
2 Ag 2097 1989 0.00 4.56 0.74 0.85
3 Ag 1153 1094 0.00 32.57 0.57 0.73
4 Ag 920 872 0.00 29.71 0.16 0.28
5 Ag 309 293 0.00 2.63 0.38 0.55
6 Au 956 907 116.83 0.00 0.75 0.86
7 Au 247 234 0.00 0.00 0.00 0.00
8 Bg 681 646 0.00 1.83 0.75 0.86
9 Bu 3445 3267 33.74 0.00 0.29 0.45
10 Bu 1708 1620 102.87 0.00 0.00 0.00
11 Bu 1115 1057 399.61 0.00 0.41 0.58
12 Bu 282 268 6.07 0.00 0.33 0.49

Unscaled Zero Point Vibrational Energy (zpe) 8178.4 cm-1
Scaled (by 0.9484) Zero Point Vibrational Energy (zpe) 7756.4 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/cc-pVQZ
ABC
8.80898 0.14227 0.14001

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/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 -1.845 0.000
N4 -0.262 1.845 0.000
H5 1.210 -2.225 0.000
H6 -1.210 2.225 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30181.24962.49691.88513.1821
C21.30182.49691.24963.18211.8851
N31.24962.49693.72791.02144.3287
N42.49691.24963.72794.32871.0214
H51.88513.18211.02144.32875.0660
H63.18211.88514.32871.02145.0660

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 156.256 C1 N3 H5 111.825
C2 C1 N3 156.256 C2 N4 H6 111.825
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability