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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: MP2/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at MP2/6-311+G(3df,2p)
 hartrees
Energy at 0K-186.445720
Energy at 298.15K 
HF Energy-185.741480
Nuclear repulsion energy89.268718
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 MP2/6-311+G(3df,2p)
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 3453 3257 0.00 534.77 0.30 0.46
2 Ag 2089 1971 0.00 4.53 0.72 0.84
3 Ag 1148 1083 0.00 40.44 0.52 0.68
4 Ag 917 865 0.00 36.28 0.13 0.23
5 Ag 323 305 0.00 3.06 0.31 0.48
6 Au 952 898 114.46 0.00 0.75 0.86
7 Au 246 232 0.00 0.00 0.00 0.00
8 Bg 684 645 0.00 1.59 0.75 0.86
9 Bu 3453 3258 38.78 0.00 0.30 0.46
10 Bu 1706 1609 112.85 0.00 0.00 0.00
11 Bu 1107 1045 397.10 0.00 0.00 0.00
12 Bu 281 265 6.27 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8179.0 cm-1
Scaled (by 0.9434) Zero Point Vibrational Energy (zpe) 7716.1 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 MP2/6-311+G(3df,2p)
ABC
8.69883 0.14202 0.13974

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311+G(3df,2p)

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.270 -0.594 0.000
C2 -0.270 0.594 0.000
N3 0.270 -1.845 0.000
N4 -0.270 1.845 0.000
H5 1.218 -2.231 0.000
H6 -1.218 2.231 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30491.25122.49831.89143.1926
C21.30492.49831.25123.19261.8914
N31.25122.49833.72981.02324.3390
N42.49831.25123.72984.33901.0232
H51.89143.19261.02324.33905.0830
H63.19261.89144.33901.02325.0830

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 155.577 C1 N3 H5 112.140
C2 C1 N3 155.577 C2 N4 H6 112.140
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability