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

using model chemistry: mPW1PW91/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-110.616133
Energy at 298.15K-110.618845
HF Energy-110.616133
Nuclear repulsion energy32.317129
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/cc-pVDZ
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 3224 3090 0.00      
2 Ag 1710 1639 0.00      
3 Ag 1613 1545 0.00      
4 Au 1354 1298 92.89      
5 Bu 3251 3115 39.85      
6 Bu 1356 1300 79.13      

Unscaled Zero Point Vibrational Energy (zpe) 6254.3 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 5993.5 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/cc-pVDZ
ABC
9.86339 1.32791 1.17034

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.619 0.000
N2 0.000 -0.619 0.000
H3 1.001 0.904 0.000
H4 -1.001 -0.904 0.000

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.23841.04091.8226
N21.23841.82261.0409
H31.04091.82262.6976
H41.82261.04092.6976

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 105.864 N2 N1 H3 105.864
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.124      
2 N -0.124      
3 H 0.124      
4 H 0.124      


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 -10.087 3.221 0.000
y 3.221 -12.721 0.000
z 0.000 0.000 -11.662
Traceless
 xyz
x 2.105 3.221 0.000
y 3.221 -1.847 0.000
z 0.000 0.000 -0.258
Polar
3z2-r2-0.516
x2-y22.635
xy3.221
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.123 0.662 0.000
y 0.662 2.694 0.000
z 0.000 0.000 1.022


<r2> (average value of r2) Å2
<r2> 16.182
(<r2>)1/2 4.023