return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for ClONO (chlorine nitrite)

using model chemistry: ROMP2/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS cis 1A'
Energy calculated at ROMP2/6-31G**
 hartrees
Energy at 0K-664.137111
Energy at 298.15K-664.138532
HF Energy-663.455491
Nuclear repulsion energy151.915603
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 ROMP2/6-31G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 1685 1685        
2 A' 868 868        
3 A' 659 659        
4 A' 392 392        
5 A' 254 254        
6 A" 366 366        

Unscaled Zero Point Vibrational Energy (zpe) 2112.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 2112.1 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 ROMP2/6-31G**
ABC
0.58698 0.15013 0.11955

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 -1.236 -0.244 0.000
O2 0.000 0.956 0.000
N3 1.366 0.396 0.000
O4 1.431 -0.784 0.000

Atom - Atom Distances (Å)
  Cl1 O2 N3 O4
Cl11.72252.67972.7209
O21.72251.47642.2526
N32.67971.47641.1818
O42.72092.25261.1818

picture of chlorine nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 O2 N3 113.572 O2 N3 O4 115.416
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.243      
2 O -0.489      
3 N 0.480      
4 O -0.234      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 87.366
(<r2>)1/2 9.347