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

using model chemistry: B3LYP/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 B3LYP/3-21G*
 hartrees
Energy at 0K-110.002090
Energy at 298.15K-110.004790
HF Energy-110.002090
Nuclear repulsion energy31.470205
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 B3LYP/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 3033 2918 0.00      
2 Ag 1640 1578 0.00      
3 Ag 1393 1340 0.00      
4 Au 1324 1274 107.59      
5 Bu 3067 2950 78.93      
6 Bu 1354 1303 88.23      

Unscaled Zero Point Vibrational Energy (zpe) 5905.5 cm-1
Scaled (by 0.962) Zero Point Vibrational Energy (zpe) 5681.1 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 B3LYP/3-21G*
ABC
9.66784 1.24674 1.10433

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G*

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.639 0.000
N2 0.000 -0.639 0.000
H3 1.011 0.933 0.000
H4 -1.011 -0.933 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.27891.05241.8692
N21.27891.86921.0524
H31.05241.86922.7509
H41.86921.05242.7509

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 106.196 N2 N1 H3 106.196
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.288      
2 N -0.288      
3 H 0.288      
4 H 0.288      


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 -10.073 3.542 0.000
y 3.542 -12.981 0.000
z 0.000 0.000 -11.714
Traceless
 xyz
x 2.274 3.542 0.000
y 3.542 -2.088 0.000
z 0.000 0.000 -0.186
Polar
3z2-r2-0.373
x2-y22.908
xy3.542
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.000 0.816 0.000
y 0.816 2.469 0.000
z 0.000 0.000 0.668


<r2> (average value of r2) Å2
<r2> 16.747
(<r2>)1/2 4.092