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

using model chemistry: B3LYP/CEP-121G

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 B3LYP/CEP-121G
Rotational Constants (cm-1) from geometry optimized at B3LYP/CEP-121G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at B3LYP/CEP-121G
Rotational Constants (cm-1) from geometry optimized at B3LYP/CEP-121G
See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (one long, two short)

Jump to S1C1 S1C2
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-57.541137
Energy at 298.15K-57.542732
Nuclear repulsion energy61.596712
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-121G
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 1128 1100 4.63      
2 A1 687 670 5.12      
3 A1 575 560 4.08      
4 B1 665 648 5.55      
5 B2 1317 1283 130.20      
6 B2 141 138 4.21      

Unscaled Zero Point Vibrational Energy (zpe) 2257.0 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 2199.4 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 B3LYP/CEP-121G
ABC
0.42135 0.39865 0.20484

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.077
O2 0.000 0.000 1.312
O3 0.000 1.150 -0.622
O4 0.000 -1.150 -0.622

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.38941.27241.2724
O21.38942.25032.2503
O31.27242.25032.2995
O41.27242.25032.2995

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 115.362 O2 N1 O4 115.362
O3 N1 O4 129.275
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.010      
2 O 0.039      
3 O -0.024      
4 O -0.024      


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 0.572 0.572
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -20.416 0.000 0.000
y 0.000 -23.889 0.000
z 0.000 0.000 -22.870
Traceless
 xyz
x 2.963 0.000 0.000
y 0.000 -2.246 0.000
z 0.000 0.000 -0.717
Polar
3z2-r2-1.435
x2-y23.472
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.153 0.000 0.000
y 0.000 4.311 0.000
z 0.000 0.000 4.758


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