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All results from a given calculation for N2H2 ((E)-diazene)

using model chemistry: HF/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 HF/CEP-31G*
 hartrees
Energy at 0K-20.460336
Energy at 298.15K-20.463059
HF Energy-20.460336
Nuclear repulsion energy19.034685
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/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 3624 3254 0.00      
2 Ag 1910 1715 0.00      
3 Ag 1744 1566 0.00      
4 Au 1458 1309 112.58      
5 Bu 3654 3281 9.85      
6 Bu 1453 1305 96.92      

Unscaled Zero Point Vibrational Energy (zpe) 6920.8 cm-1
Scaled (by 0.898) Zero Point Vibrational Energy (zpe) 6214.9 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/CEP-31G*
ABC
10.46737 1.33338 1.18272

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

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.617 0.000
N2 0.000 -0.617 0.000
H3 0.974 0.915 0.000
H4 -0.974 -0.915 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.23371.01821.8149
N21.23371.81491.0182
H31.01821.81492.6719
H41.81491.01822.6719

picture of (E)-diazene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 H4 107.014 N2 N1 H3 107.014
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.279      
2 N -0.279      
3 H 0.279      
4 H 0.279      


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 -10.332 3.715 0.000
y 3.715 -13.007 0.000
z 0.000 0.000 -12.145
Traceless
 xyz
x 2.244 3.715 0.000
y 3.715 -1.768 0.000
z 0.000 0.000 -0.476
Polar
3z2-r2-0.951
x2-y22.674
xy3.715
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.050 0.622 0.000
y 0.622 3.038 0.000
z 0.000 0.000 0.886


<r2> (average value of r2) Å2
<r2> 14.762
(<r2>)1/2 3.842