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

using model chemistry: MP2=FULL/cc-pVDZ

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 MP2=FULL/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (one short, two long)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at MP2=FULL/cc-pVDZ
Rotational Constants (cm-1) from geometry optimized at MP2=FULL/cc-pVDZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (one long, two short)

Jump to S1C1 S1C2
Energy calculated at MP2=FULL/cc-pVDZ
 hartrees
Energy at 0K-279.541115
Energy at 298.15K-279.543249
HF Energy-278.833908
Nuclear repulsion energy116.898646
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 MP2=FULL/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 1366 1298 146.49      
2 A1 890 846 92.91      
3 A1 621 590 1.01      
4 B1 761 724 12.47      
5 B2 1912 1818 198.99      
6 B2 440 418 9.38      

Unscaled Zero Point Vibrational Energy (zpe) 2995.1 cm-1
Scaled (by 0.9504) Zero Point Vibrational Energy (zpe) 2846.5 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 MP2=FULL/cc-pVDZ
ABC
0.44985 0.42961 0.21975

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.110
O2 0.000 0.000 1.278
O3 0.000 1.108 -0.591
O4 0.000 -1.108 -0.591

Atom - Atom Distances (Å)
  N1 O2 O3 O4
N11.38851.20731.2073
O21.38852.17262.1726
O31.20732.17262.2151
O41.20732.17262.2151

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 113.460 O2 N1 O4 113.460
O3 N1 O4 133.079
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability