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All results from a given calculation for NO3 (Nitrogen trioxide)

using model chemistry: HF/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes one long, two short 2B2

Conformer 1 (all bonds equal)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at HF/SDD
Rotational Constants (cm-1) from geometry optimized at HF/SDD
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at HF/SDD
Rotational Constants (cm-1) from geometry optimized at HF/SDD
See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/SDD
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (one long, two short)

Jump to S1C1 S1C2
Energy calculated at HF/SDD
 hartrees
Energy at 0K-278.723551
Energy at 298.15K-278.725771
Nuclear repulsion energy115.584268
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 HF/SDD
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 1359 1224 149.95      
2 A1 947 853 69.79      
3 A1 653 588 8.71      
4 B1 753 678 21.85      
5 B2 1549 1395 865.27      
6 B2 535 481 6.56      

Unscaled Zero Point Vibrational Energy (zpe) 2898.0 cm-1
Scaled (by 0.9004) Zero Point Vibrational Energy (zpe) 2609.4 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 HF/SDD
ABC
0.42986 0.42859 0.21461

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.101
O2 0.000 0.000 1.305
O3 0.000 1.109 -0.608
O4 0.000 -1.109 -0.608

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.40571.21951.2195
O21.40572.21132.2113
O31.21952.21132.2177
O41.21952.21132.2177

picture of Nitrogen trioxide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 O3 114.594 O2 N1 O4 114.594
O3 N1 O4 130.813
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/SDD Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.480      
2 O 0.004      
3 O -0.242      
4 O -0.242      


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 1.455 1.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.520 0.000 0.000
y 0.000 -25.287 0.000
z 0.000 0.000 -23.331
Traceless
 xyz
x 3.789 0.000 0.000
y 0.000 -3.361 0.000
z 0.000 0.000 -0.427
Polar
3z2-r2-0.854
x2-y24.767
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.944 0.000 0.000
y 0.000 4.297 0.000
z 0.000 0.000 2.822


<r2> (average value of r2) Å2
<r2> 0.000
(<r2>)1/2 0.000