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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: HF/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 HF/aug-cc-pVDZ
 hartrees
Energy at 0K-185.708834
Energy at 298.15K 
HF Energy-185.708834
Nuclear repulsion energy90.397600
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 HF/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 3667 3340 0.00 536.95 0.30 0.46
2 Ag 2427 2210 0.00 101.70 0.35 0.52
3 Ag 1275 1161 0.00 16.43 0.61 0.75
4 Ag 997 908 0.00 64.61 0.17 0.29
5 Ag 323 294 0.00 6.92 0.61 0.76
6 Au 1038 945 147.06 0.00 0.00 0.00
7 Au 275 250 0.59 0.00 0.00 0.00
8 Bg 697 635 0.00 5.69 0.75 0.86
9 Bu 3668 3340 56.05 0.00 0.00 0.00
10 Bu 1883 1714 358.05 0.00 0.00 0.00
11 Bu 1271 1158 343.02 0.00 0.00 0.00
12 Bu 312 284 9.50 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8916.6 cm-1
Scaled (by 0.9106) Zero Point Vibrational Energy (zpe) 8119.4 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 HF/aug-cc-pVDZ
ABC
10.68009 0.14327 0.14137

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.142 -0.626 0.000
C2 -0.142 0.626 0.000
N3 0.142 -1.855 0.000
N4 -0.142 1.855 0.000
H5 1.077 -2.240 0.000
H6 -1.077 2.240 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.28331.22912.49671.86533.1141
C21.28332.49671.22913.11411.8653
N31.22912.49673.72041.01094.2723
N42.49671.22913.72044.27231.0109
H51.86533.11411.01094.27234.9706
H63.11411.86534.27231.01094.9706

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 167.192 C1 N3 H5 112.396
C2 C1 N3 167.192 C2 N4 H6 112.396
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.194      
2 C 0.194      
3 N -0.315      
4 N -0.315      
5 H 0.121      
6 H 0.121      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 0.000 0.000
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.105 -7.792 0.000
y -7.792 -24.811 0.000
z 0.000 0.000 -23.371
Traceless
 xyz
x 2.985 -7.792 0.000
y -7.792 -2.573 0.000
z 0.000 0.000 -0.412
Polar
3z2-r2-0.824
x2-y23.706
xy-7.792
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.334 -1.479 0.000
y -1.479 11.493 0.000
z 0.000 0.000 3.609


<r2> (average value of r2) Å2
<r2> 80.164
(<r2>)1/2 8.953