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

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-110.632842
Energy at 298.15K-110.635556
HF Energy-110.632842
Nuclear repulsion energy32.462760
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 mPW1PW91/6-311G*
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 3280 3130 0.00      
2 Ag 1702 1624 0.00      
3 Ag 1654 1578 0.00      
4 Au 1381 1318 102.25      
5 Bu 3313 3162 46.38      
6 Bu 1387 1323 75.20      

Unscaled Zero Point Vibrational Energy (zpe) 6357.6 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 6067.7 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 mPW1PW91/6-311G*
ABC
10.18390 1.33221 1.17809

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

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 0.987 0.914 0.000
H4 -0.987 -0.914 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.23391.03101.8217
N21.23391.82171.0310
H31.03101.82172.6908
H41.82171.03102.6908

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 106.742 N2 N1 H3 106.742
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* 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 -10.177 3.550 0.000
y 3.550 -12.970 0.000
z 0.000 0.000 -11.951
Traceless
 xyz
x 2.283 3.550 0.000
y 3.550 -1.906 0.000
z 0.000 0.000 -0.377
Polar
3z2-r2-0.754
x2-y22.793
xy3.550
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.114 0.634 0.000
y 0.634 2.759 0.000
z 0.000 0.000 1.077


<r2> (average value of r2) Å2
<r2> 16.257
(<r2>)1/2 4.032