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 NO2 (Nitrogen dioxide)

using model chemistry: TPSSh/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 2A1
Energy calculated at TPSSh/Def2TZVPP
 hartrees
Energy at 0K-205.172782
Energy at 298.15K-205.173827
HF Energy-205.172782
Nuclear repulsion energy64.955951
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 TPSSh/Def2TZVPP
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 1375 1375 0.19 21.64 0.18 0.31
2 A1 759 759 6.07 1.49 0.75 0.86
3 B2 1682 1682 390.36 6.53 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1907.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1907.5 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 TPSSh/Def2TZVPP
ABC
8.03400 0.43430 0.41203

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.323
O2 0.000 1.102 -0.141
O3 0.000 -1.102 -0.141

Atom - Atom Distances (Å)
  N1 O2 O3
N11.19531.1953
O21.19532.2031
O31.19532.2031

picture of Nitrogen dioxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 O3 134.302
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.345      
2 O -0.173      
3 O -0.173      


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 0.287 0.287
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.386 0.000 0.000
y 0.000 3.989 0.000
z 0.000 0.000 1.700


<r2> (average value of r2) Å2
<r2> 30.445
(<r2>)1/2 5.518