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 H2NN (Isodiazene)

using model chemistry: B3LYPultrafine/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3LYPultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-110.628527
Energy at 298.15K 
HF Energy-110.628527
Nuclear repulsion energy32.351366
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 B3LYPultrafine/aug-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 A1 3028 2938 134.03 399.74 0.10 0.17
2 A1 1724 1673 2.38 22.15 0.21 0.35
3 A1 1617 1569 31.26 12.57 0.57 0.73
4 B1 1007 977 105.14 3.94 0.75 0.86
5 B2 3007 2918 113.53 697.39 0.75 0.86
6 B2 1317 1278 7.55 6.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 5849.3 cm-1
Scaled (by 0.9704) Zero Point Vibrational Energy (zpe) 5676.1 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 B3LYPultrafine/aug-cc-pVDZ
ABC
11.02094 1.28951 1.15443

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.461
N2 0.000 0.000 0.758
H3 0.000 0.871 -1.042
H4 0.000 -0.871 -1.042

Atom - Atom Distances (Å)
  N1 N2 H3 H4
N11.21931.04691.0469
N21.21931.99971.9997
H31.04691.99971.7423
H41.04691.99971.7423

picture of Isodiazene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 N1 H3 123.688 N2 N1 H4 123.688
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.456      
2 N -0.443      
3 H -0.006      
4 H -0.006      


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 -3.485 3.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.276 0.000 0.000
y 0.000 -11.986 0.000
z 0.000 0.000 -12.951
Traceless
 xyz
x 0.192 0.000 0.000
y 0.000 0.628 0.000
z 0.000 0.000 -0.820
Polar
3z2-r2-1.640
x2-y2-0.290
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.952 0.000 0.000
y 0.000 3.067 0.000
z 0.000 0.000 4.370


<r2> (average value of r2) Å2
<r2> 16.948
(<r2>)1/2 4.117