return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
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All results from a given calculation for NO (Nitric oxide)

using model chemistry: MP2/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 2Π
Energy calculated at MP2/6-31G*
 hartrees
Energy at 0K-129.558900
Energy at 298.15K-129.558704
HF Energy-129.247289
Nuclear repulsion energy25.928711
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 MP2/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 3913 3690 2715.47      

Unscaled Zero Point Vibrational Energy (zpe) 1956.6 cm-1
Scaled (by 0.943) Zero Point Vibrational Energy (zpe) 1845.1 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 MP2/6-31G*
B
1.72849

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.533
N2 0.000 0.000 -0.610

Atom - Atom Distances (Å)
  O1 N2
O11.1429
N21.1429

picture of Nitric oxide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability