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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: B3LYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at B3LYP/6-31+G**
 hartrees
Energy at 0K-186.824374
Energy at 298.15K 
HF Energy-186.824374
Nuclear repulsion energy89.230515
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 B3LYP/6-31+G**
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 3403 3281 0.00 675.39 0.34 0.51
2 Ag 2126 2050 0.00 44.72 0.37 0.54
3 Ag 1173 1131 0.00 32.05 0.73 0.84
4 Ag 938 904 0.00 50.03 0.18 0.31
5 Ag 342 330 0.00 7.73 0.25 0.40
6 Au 955 921 138.41 0.00 0.00 0.00
7 Au 256 247 0.00 0.00 0.00 0.00
8 Bg 706 680 0.00 6.57 0.75 0.86
9 Bu 3404 3282 8.51 0.00 0.00 0.00
10 Bu 1761 1698 196.26 0.00 0.00 0.00
11 Bu 1129 1089 382.41 0.00 0.00 0.00
12 Bu 278 268 7.96 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8235.4 cm-1
Scaled (by 0.9642) Zero Point Vibrational Energy (zpe) 7940.6 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 B3LYP/6-31+G**
ABC
8.68635 0.14193 0.13965

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31+G**

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.274 -0.595 0.000
C2 -0.274 0.595 0.000
N3 0.274 -1.844 0.000
N4 -0.274 1.844 0.000
H5 1.221 -2.240 0.000
H6 -1.221 2.240 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.30991.24872.49941.89843.2050
C21.30992.49941.24873.20501.8984
N31.24872.49943.72791.02694.3488
N42.49941.24873.72794.34881.0269
H51.89843.20501.02694.34885.1025
H63.20501.89844.34881.02695.1025

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 155.311 C1 N3 H5 112.713
C2 C1 N3 155.311 C2 N4 H6 112.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.153      
2 C 0.153      
3 N -0.439      
4 N -0.439      
5 H 0.286      
6 H 0.286      


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 -20.338 -7.706 0.000
y -7.706 -24.306 0.000
z 0.000 0.000 -23.296
Traceless
 xyz
x 3.463 -7.706 0.000
y -7.706 -2.489 0.000
z 0.000 0.000 -0.974
Polar
3z2-r2-1.948
x2-y23.968
xy-7.706
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.486 -2.190 0.000
y -2.190 11.323 0.000
z 0.000 0.000 3.047


<r2> (average value of r2) Å2
<r2> 80.949
(<r2>)1/2 8.997