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

using model chemistry: B1B95/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2H 1Ag
Energy calculated at B1B95/3-21G
 hartrees
Energy at 0K-109.952917
Energy at 298.15K-109.955621
HF Energy-109.952917
Nuclear repulsion energy31.652189
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 B1B95/3-21G
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 3101 2967 0.00      
2 Ag 1647 1575 0.00      
3 Ag 1435 1373 0.00      
4 Au 1337 1279 116.46      
5 Bu 3137 3001 58.31      
6 Bu 1355 1296 96.11      

Unscaled Zero Point Vibrational Energy (zpe) 6005.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5745.7 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 B1B95/3-21G
ABC
9.80830 1.26059 1.11703

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.635 0.000
N2 0.000 -0.635 0.000
H3 1.004 0.932 0.000
H4 -1.004 -0.932 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.27101.04691.8612
N21.27101.86121.0469
H31.04691.86122.7395
H41.86121.04692.7395

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 106.433 N2 N1 H3 106.433
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.303      
2 N -0.303      
3 H 0.303      
4 H 0.303      


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 -10.002 3.634 0.000
y 3.634 -12.935 0.000
z 0.000 0.000 -11.712
Traceless
 xyz
x 2.321 3.634 0.000
y 3.634 -2.078 0.000
z 0.000 0.000 -0.243
Polar
3z2-r2-0.486
x2-y22.932
xy3.634
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.942 0.790 0.000
y 0.790 2.456 0.000
z 0.000 0.000 0.661


<r2> (average value of r2) Å2
<r2> 16.620
(<r2>)1/2 4.077