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

using model chemistry: B3LYP/CEP-31G*

19 10 17 12 22

States and conformations

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

Conformer 1 (all bonds equal)

Jump to S1C2
Vibrational Frequencies calculated at B3LYP/CEP-31G*
Rotational Constants (cm-1) from geometry optimized at B3LYP/CEP-31G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1
Energy calculated at B3LYP/CEP-31G*
 hartrees
Energy at 0K-57.637382
Energy at 298.15K-57.639191
Nuclear repulsion energy64.025301
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/CEP-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 1466 1416 124.80      
2 A1 1077 1040 3.06      
3 A1 354 342 0.66      
4 B1 737 712 8.84      
5 B2 852 822 56.02      
6 B2 396 382 65.20      

Unscaled Zero Point Vibrational Energy (zpe) 2440.4 cm-1
Scaled (by 0.9657) Zero Point Vibrational Energy (zpe) 2356.7 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/CEP-31G*
ABC
0.47347 0.41634 0.22154

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.055
O2 0.000 0.000 1.283
O3 0.000 1.055 -0.664
O4 0.000 -1.055 -0.664

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.22801.27691.2769
O21.22802.21482.2148
O31.27692.21482.1100
O41.27692.21482.1100

picture of Nitrogen trioxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 O3 124.287 O2 N1 O4 124.287
O3 N1 O4 111.426
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.095      
2 O -0.009      
3 O -0.043      
4 O -0.043      


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 -0.140 0.140
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.942 0.000 0.000
y 0.000 -22.032 0.000
z 0.000 0.000 -22.839
Traceless
 xyz
x 2.494 0.000 0.000
y 0.000 -0.642 0.000
z 0.000 0.000 -1.852
Polar
3z2-r2-3.705
x2-y22.091
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.294 0.000 0.000
y 0.000 5.168 0.000
z 0.000 0.000 4.042


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