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All results from a given calculation for HNCCNH (Ethenediimine)

using model chemistry: PBEPBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1AG
Energy calculated at PBEPBE/STO-3G
 hartrees
Energy at 0K-184.176729
Energy at 298.15K 
HF Energy-184.176729
Nuclear repulsion energy86.376211
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 PBEPBE/STO-3G
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 3287 3003 0.00 431.71 0.32 0.49
2 Ag 1994 1822 0.00 21.36 0.32 0.49
3 Ag 1222 1116 0.00 37.43 0.73 0.84
4 Ag 928 848 0.00 24.48 0.23 0.37
5 Ag 360 329 0.00 0.81 0.39 0.56
6 Au 912 833 83.65 0.00 0.00 0.00
7 Au 233 213 0.02 0.00 0.00 0.00
8 Bg 707 645 0.00 16.58 0.75 0.86
9 Bu 3284 3001 13.80 0.00 0.00 0.00
10 Bu 1685 1540 10.86 0.00 0.00 0.00
11 Bu 1173 1071 271.20 0.00 0.00 0.00
12 Bu 287 263 3.93 0.00 0.00 0.00

Unscaled Zero Point Vibrational Energy (zpe) 8035.8 cm-1
Scaled (by 0.9136) Zero Point Vibrational Energy (zpe) 7341.5 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 PBEPBE/STO-3G
ABC
6.04601 0.13709 0.13405

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/STO-3G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.191 -0.642 0.000
C2 -0.191 0.642 0.000
N3 -0.191 -1.892 0.000
N4 0.191 1.892 0.000
H5 0.706 -2.511 0.000
H6 -0.706 2.511 0.000

Atom - Atom Distances (Å)
  C1 C2 N3 N4 H5 H6
C11.33911.30712.53391.93923.2782
C21.33912.53391.30713.27821.9392
N31.30712.53393.80331.08974.4334
N42.53391.30713.80334.43341.0897
H51.93923.27821.08974.43345.2174
H63.27821.93924.43341.08975.2174

picture of Ethenediimine state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 N4 146.487 C1 N3 H5 107.668
C2 C1 N3 146.487 C2 N4 H6 107.668
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.040      
2 C 0.040      
3 N -0.230      
4 N -0.230      
5 H 0.190      
6 H 0.190      


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 -21.280 -6.448 0.000
y -6.448 -18.287 0.000
z 0.000 0.000 -20.681
Traceless
 xyz
x -1.796 -6.448 0.000
y -6.448 2.694 0.000
z 0.000 0.000 -0.897
Polar
3z2-r2-1.795
x2-y2-2.993
xy-6.448
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.555 -0.907 0.000
y -0.907 8.289 0.000
z 0.000 0.000 0.816


<r2> (average value of r2) Å2
<r2> 82.161
(<r2>)1/2 9.064