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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/cc-pVDZ

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-pVDZ
 hartrees
Energy at 0K-186.269709
Energy at 298.15K 
HF Energy-185.687869
Nuclear repulsion energy88.283553
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-pVDZ
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 3418 3255 0.00 645.17 0.31 0.47
2 Ag 2043 1946 0.00 5.03 0.75 0.86
3 Ag 1158 1103 0.00 31.96 0.70 0.82
4 Ag 915 872 0.00 21.91 0.24 0.39
5 Ag 332 316 0.00 3.52 0.21 0.34
6 Au 944 899 116.56 0.00 0.00 0.00
7 Au 243 231 0.08 0.00 0.00 0.00
8 Bg 704 670 0.00 5.97 0.75 0.86
9 Bu 3419 3256 13.82 0.00 0.31 0.47
10 Bu 1703 1622 81.29 0.00 0.00 0.00
11 Bu 1111 1058 409.22 0.00 0.00 0.00
12 Bu 286 272 6.86 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8137.1 cm-1
Scaled (by 0.9525) Zero Point Vibrational Energy (zpe) 7750.6 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/cc-pVDZ
ABC
7.50331 0.14014 0.13757

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.319 -0.585 0.000
C2 -0.319 0.585 0.000
N3 0.319 -1.850 0.000
N4 -0.319 1.850 0.000
H5 1.291 -2.203 0.000
H6 -1.291 2.203 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33221.26562.51741.88803.2195
C21.33222.51741.26563.21951.8880
N31.26562.51743.75541.03454.3616
N42.51741.26563.75544.36161.0345
H51.88803.21951.03454.36165.1074
H63.21951.88804.36161.03455.1074

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 151.407 C1 N3 H5 109.930
C2 C1 N3 151.407 C2 N4 H6 109.930
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability