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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2=FULL/aug-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=FULL/aug-cc-pVDZ
 hartrees
Energy at 0K-186.316882
Energy at 298.15K 
HF Energy-185.700862
Nuclear repulsion energy88.287458
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=FULL/aug-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 3421 3315 0.00 554.63 0.28 0.44
2 Ag 2028 1965 0.00 5.03 0.70 0.82
3 Ag 1148 1113 0.00 42.45 0.51 0.68
4 Ag 909 881 0.00 36.64 0.12 0.22
5 Ag 345 334 0.00 2.39 0.31 0.47
6 Au 936 908 113.44 0.00 0.75 0.86
7 Au 241 233 0.03 0.00 0.75 0.86
8 Bg 700 678 0.00 1.75 0.75 0.86
9 Bu 3421 3315 32.96 0.00 0.28 0.44
10 Bu 1686 1634 106.96 0.00 0.00 0.00
11 Bu 1099 1065 402.99 0.00 0.34 0.51
12 Bu 276 267 6.91 0.00 0.35 0.52

Unscaled Zero Point Vibrational Energy (zpe) 8103.8 cm-1
Scaled (by 0.9692) Zero Point Vibrational Energy (zpe) 7854.2 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=FULL/aug-cc-pVDZ
ABC
7.72997 0.13989 0.13740

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.315 -0.586 0.000
C2 -0.315 0.586 0.000
N3 0.315 -1.852 0.000
N4 -0.315 1.852 0.000
H5 1.276 -2.225 0.000
H6 -1.276 2.225 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33091.26552.51791.89983.2302
C21.33092.51791.26553.23021.8998
N31.26552.51793.75651.03094.3761
N42.51791.26553.75654.37611.0309
H51.89983.23021.03094.37615.1298
H63.23021.89984.37611.03095.1298

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 151.739 C1 N3 H5 111.238
C2 C1 N3 151.739 C2 N4 H6 111.238
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability