return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G*
 hartrees
Energy at 0K-110.546090
Energy at 298.15K-110.548804
HF Energy-110.546090
Nuclear repulsion energy32.451322
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 HSEh1PBE/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 3273 3140 0.00      
2 Ag 1702 1633 0.00      
3 Ag 1650 1584 0.00      
4 Au 1378 1322 102.12      
5 Bu 3306 3173 46.11      
6 Bu 1384 1328 74.81      

Unscaled Zero Point Vibrational Energy (zpe) 6346.4 cm-1
Scaled (by 0.9596) Zero Point Vibrational Energy (zpe) 6090.0 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 HSEh1PBE/6-311G*
ABC
10.16052 1.33184 1.17750

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/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 0.988 0.914 0.000
H4 -0.988 -0.914 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.23421.03191.8221
N21.23421.82211.0319
H31.03191.82212.6920
H41.82211.03192.6920

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 106.703 N2 N1 H3 106.703
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/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 -10.198 3.546 0.000
y 3.546 -13.000 0.000
z 0.000 0.000 -11.971
Traceless
 xyz
x 2.288 3.546 0.000
y 3.546 -1.915 0.000
z 0.000 0.000 -0.373
Polar
3z2-r2-0.745
x2-y22.802
xy3.546
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.119 0.636 0.000
y 0.636 2.755 0.000
z 0.000 0.000 1.077


<r2> (average value of r2) Å2
<r2> 16.277
(<r2>)1/2 4.034