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 ClONO2 (Chlorine nitrate)

using model chemistry: HF/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/6-31G*
 hartrees
Energy at 0K-738.259940
Energy at 298.15K-738.262834
HF Energy-738.259940
Nuclear repulsion energy233.882947
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 HF/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' 1952 1754 646.68      
2 A' 1558 1400 379.56      
3 A' 1060 953 239.77      
4 A' 962 864 55.07      
5 A' 790 710 3.20      
6 A' 549 493 2.48      
7 A' 314 282 0.80      
8 A" 882 793 33.60      
9 A" 125 113 0.20      

Unscaled Zero Point Vibrational Energy (zpe) 4096.3 cm-1
Scaled (by 0.8985) Zero Point Vibrational Energy (zpe) 3680.5 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 HF/6-31G*
ABC
0.43969 0.09608 0.07885

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Cl1 -1.594 0.281 0.000
O2 0.000 0.767 0.000
N3 0.930 -0.241 0.000
O4 0.555 -1.352 0.000
O5 2.018 0.198 0.000

Atom - Atom Distances (Å)
  Cl1 O2 N3 O4 O5
Cl11.66622.57762.69843.6123
O21.66621.37222.19032.0966
N32.57761.37221.17221.1724
O42.69842.19031.17222.1307
O53.61232.09661.17242.1307

picture of Chlorine nitrate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Cl1 O2 N3 115.727 O2 N3 O4 118.612
O2 N3 O5 110.714 O4 N3 O5 130.674
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Cl 0.338      
2 O -0.471      
3 N 0.954      
4 O -0.421      
5 O -0.400      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -2.118 0.343 0.000 2.146
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.449 -0.135 0.000
y -0.135 -36.582 0.000
z 0.000 0.000 -32.413
Traceless
 xyz
x 1.048 -0.135 0.000
y -0.135 -3.651 0.000
z 0.000 0.000 2.602
Polar
3z2-r25.205
x2-y23.133
xy-0.135
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.394 0.359 0.000
y 0.359 3.723 0.000
z 0.000 0.000 2.011


<r2> (average value of r2) Å2
<r2> 126.981
(<r2>)1/2 11.269