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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: HF/6-31G**

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/6-31G**
 hartrees
Energy at 0K-185.683169
Energy at 298.15K 
HF Energy-185.683169
Nuclear repulsion energy90.595882
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/6-31G**
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 3685 3326 0.00 625.43 0.31 0.48
2 Ag 2449 2211 0.00 84.32 0.34 0.51
3 Ag 1275 1151 0.00 14.55 0.73 0.84
4 Ag 1010 912 0.00 48.35 0.30 0.47
5 Ag 311 281 0.00 6.09 0.61 0.76
6 Au 1052 949 176.06 0.00 0.00 0.00
7 Au 274 247 0.89 0.00 0.00 0.00
8 Bg 699 631 0.00 15.17 0.75 0.86
9 Bu 3687 3328 24.44 0.00 0.00 0.00
10 Bu 1912 1726 319.91 0.00 0.00 0.00
11 Bu 1265 1141 400.09 0.00 0.00 0.00
12 Bu 313 283 11.85 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8966.3 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 8093.0 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/6-31G**
ABC
10.70463 0.14398 0.14207

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/6-31G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.147 -0.622 0.000
C2 -0.147 0.622 0.000
N3 0.147 -1.850 0.000
N4 -0.147 1.850 0.000
H5 1.079 -2.236 0.000
H6 -1.079 2.236 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.27911.22722.48951.86313.1102
C21.27912.48951.22723.11021.8631
N31.22722.48953.71091.00854.2655
N42.48951.22723.71094.26551.0085
H51.86313.11021.00854.26554.9651
H63.11021.86314.26551.00854.9651

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 166.669 C1 N3 H5 112.516
C2 C1 N3 166.669 C2 N4 H6 112.516
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.304      
2 C 0.304      
3 N -0.602      
4 N -0.602      
5 H 0.298      
6 H 0.298      


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 -20.401 -8.042 0.000
y -8.042 -24.479 0.000
z 0.000 0.000 -22.747
Traceless
 xyz
x 3.212 -8.042 0.000
y -8.042 -2.905 0.000
z 0.000 0.000 -0.307
Polar
3z2-r2-0.614
x2-y24.078
xy-8.042
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.018 -1.759 0.000
y -1.759 10.327 0.000
z 0.000 0.000 2.000


<r2> (average value of r2) Å2
<r2> 79.512
(<r2>)1/2 8.917