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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/TZVP

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/TZVP
 hartrees
Energy at 0K-186.345752
Energy at 298.15K 
HF Energy-185.732738
Nuclear repulsion energy89.247227
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/TZVP
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 3446 3267 0.00 597.87 0.31 0.47
2 Ag 2060 1952 0.00 8.32 0.75 0.86
3 Ag 1159 1099 0.00 38.14 0.71 0.83
4 Ag 922 874 0.00 28.29 0.17 0.29
5 Ag 382 362 0.00 8.48 0.09 0.17
6 Au 956 906 125.23 0.00 0.00 0.00
7 Au 242 230 0.09 0.00 0.00 0.00
8 Bg 699 663 0.00 5.59 0.75 0.86
9 Bu 3447 3267 22.02 0.00 0.31 0.47
10 Bu 1708 1619 100.39 0.00 0.32 0.00
11 Bu 1112 1054 407.32 0.00 0.00 0.00
12 Bu 288 273 8.79 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8210.5 cm-1
Scaled (by 0.9479) Zero Point Vibrational Energy (zpe) 7782.8 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/TZVP
ABC
8.02842 0.14286 0.14036

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.301 -0.582 0.000
C2 -0.301 0.582 0.000
N3 0.301 -1.835 0.000
N4 -0.301 1.835 0.000
H5 1.256 -2.205 0.000
H6 -1.256 2.205 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.31021.25302.49061.88313.1922
C21.31022.49061.25303.19221.8831
N31.25302.49063.71881.02414.3294
N42.49061.25303.71884.32941.0241
H51.88313.19221.02414.32945.0750
H63.19221.88314.32941.02415.0750

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 152.649 C1 N3 H5 111.183
C2 C1 N3 152.649 C2 N4 H6 111.183
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability