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

using model chemistry: mPW1PW91/cc-pVDZ

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 mPW1PW91/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at mPW1PW91/cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1
Energy calculated at mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-280.169807
Energy at 298.15K-280.171698
Nuclear repulsion energy120.263204
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 mPW1PW91/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 1519 1456 92.53      
2 A1 1152 1104 2.16      
3 A1 324 310 0.06      
4 B1 817 783 17.53      
5 B2 971 930 39.75      
6 B2 427 409 46.77      

Unscaled Zero Point Vibrational Energy (zpe) 2605.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 2496.5 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 mPW1PW91/cc-pVDZ
ABC
0.49406 0.44218 0.23334

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 0.047
O2 0.000 0.000 1.246
O3 0.000 1.033 -0.644
O4 0.000 -1.033 -0.644

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.19971.24221.2422
O21.19972.15362.1536
O31.24222.15362.0655
O41.24222.15362.0655

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 123.754 O2 N1 O4 123.754
O3 N1 O4 112.491
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.422      
2 O -0.176      
3 O -0.123      
4 O -0.123      


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 -0.133 0.133
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.548 0.000 0.000
y 0.000 -21.812 0.000
z 0.000 0.000 -22.555
Traceless
 xyz
x 2.636 0.000 0.000
y 0.000 -0.760 0.000
z 0.000 0.000 -1.876
Polar
3z2-r2-3.751
x2-y22.264
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.044 0.000 0.000
y 0.000 4.470 0.000
z 0.000 0.000 3.595


<r2> (average value of r2) Å2
<r2> 49.439
(<r2>)1/2 7.031