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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: wB97X-D/CEP-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 wB97X-D/CEP-31G*
 hartrees
Energy at 0K-32.186916
Energy at 298.15K 
HF Energy-32.186916
Nuclear repulsion energy44.959822
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 wB97X-D/CEP-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 3506 3506 0.00 484.25 0.33 0.49
2 Ag 2071 2071 0.00 56.76 0.36 0.53
3 Ag 1191 1191 0.00 35.59 0.74 0.85
4 Ag 927 927 0.00 43.94 0.23 0.37
5 Ag 382 382 0.00 9.90 0.45 0.62
6 Au 938 938 143.76 0.00 0.00 0.00
7 Au 247 247 0.17 0.00 0.00 0.00
8 Bg 743 743 0.00 13.90 0.75 0.86
9 Bu 3506 3506 21.43 0.00 0.00 0.00
10 Bu 1778 1778 285.13 0.00 0.00 0.00
11 Bu 1127 1127 526.41 0.00 0.00 0.00
12 Bu 278 278 12.12 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8346.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8346.4 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 wB97X-D/CEP-31G*
ABC
6.99970 0.14024 0.13748

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/CEP-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.181 -0.658 0.000
C2 -0.181 0.658 0.000
N3 -0.181 -1.863 0.000
N4 0.181 1.863 0.000
H5 0.633 -2.492 0.000
H6 -0.633 2.492 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.36521.25772.52111.88893.2538
C21.36522.52111.25773.25381.8889
N31.25772.52113.74331.02874.3784
N42.52111.25773.74334.37841.0287
H51.88893.25381.02874.37845.1426
H63.25381.88894.37841.02875.1426

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 147.952 C1 N3 H5 111.009
C2 C1 N3 147.952 C2 N4 H6 111.009
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.319      
2 C -0.319      
3 N 0.006      
4 N 0.006      
5 H 0.313      
6 H 0.313      


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 -23.790 -7.575 0.000
y -7.575 -18.885 0.000
z 0.000 0.000 -22.809
Traceless
 xyz
x -2.944 -7.575 0.000
y -7.575 4.415 0.000
z 0.000 0.000 -1.471
Polar
3z2-r2-2.943
x2-y2-4.906
xy-7.575
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.609 -0.776 0.000
y -0.776 11.389 0.000
z 0.000 0.000 2.590


<r2> (average value of r2) Å2
<r2> 65.614
(<r2>)1/2 8.100