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

using model chemistry: mPW1PW91/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-31G*
 hartrees
Energy at 0K-110.605180
Energy at 298.15K-110.607892
HF Energy-110.605180
Nuclear repulsion energy32.335389
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 mPW1PW91/6-31G*
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 3268 3099 0.00      
2 Ag 1708 1619 0.00      
3 Ag 1647 1562 0.00      
4 Au 1368 1298 104.42      
5 Bu 3295 3124 55.08      
6 Bu 1384 1312 85.54      

Unscaled Zero Point Vibrational Energy (zpe) 6334.9 cm-1
Scaled (by 0.9483) Zero Point Vibrational Energy (zpe) 6007.4 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 mPW1PW91/6-31G*
ABC
10.00345 1.32469 1.16978

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-31G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.620 0.000
N2 0.000 -0.620 0.000
H3 0.995 0.908 0.000
H4 -0.995 -0.908 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.23931.03571.8233
N21.23931.82331.0357
H31.03571.82332.6941
H41.82331.03572.6941

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 106.187 N2 N1 H3 106.187
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.330      
2 N -0.330      
3 H 0.330      
4 H 0.330      


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 -10.191 3.406 0.000
y 3.406 -12.872 0.000
z 0.000 0.000 -11.906
Traceless
 xyz
x 2.198 3.406 0.000
y 3.406 -1.824 0.000
z 0.000 0.000 -0.374
Polar
3z2-r2-0.749
x2-y22.682
xy3.406
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.160 0.698 0.000
y 0.698 2.689 0.000
z 0.000 0.000 0.962


<r2> (average value of r2) Å2
<r2> 16.285
(<r2>)1/2 4.035