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

using model chemistry: HF/aug-cc-pVQZ

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/aug-cc-pVQZ
 hartrees
Energy at 0K-110.051138
Energy at 298.15K-110.053863
HF Energy-110.051138
Nuclear repulsion energy33.116284
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/aug-cc-pVQZ
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 3548 3223 0.00      
2 Ag 1871 1700 0.00      
3 Ag 1727 1569 0.00      
4 Au 1461 1328 100.69      
5 Bu 3585 3257 4.24      
6 Bu 1453 1320 119.44      

Unscaled Zero Point Vibrational Energy (zpe) 6822.4 cm-1
Scaled (by 0.9085) Zero Point Vibrational Energy (zpe) 6198.1 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/aug-cc-pVQZ
ABC
10.85718 1.37970 1.22414

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/aug-cc-pVQZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.604 0.000
N2 0.000 -0.604 0.000
H3 0.960 0.920 0.000
H4 -0.960 -0.920 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.20741.01101.8010
N21.20741.80101.0110
H31.01101.80102.6597
H41.80101.01102.6597

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 108.231 N2 N1 H3 108.231
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/aug-cc-pVQZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.304      
2 N -0.304      
3 H 0.304      
4 H 0.304      


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 -10.502 3.661 0.000
y 3.661 -12.850 0.000
z 0.000 0.000 -12.348
Traceless
 xyz
x 2.097 3.661 0.000
y 3.661 -1.425 0.000
z 0.000 0.000 -0.672
Polar
3z2-r2-1.344
x2-y22.348
xy3.661
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.522 0.389 0.000
y 0.389 3.392 0.000
z 0.000 0.000 1.916


<r2> (average value of r2) Å2
<r2> 16.072
(<r2>)1/2 4.009