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 INO (Nitrosyl iodide)

using model chemistry: B3PW91/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at B3PW91/3-21G*
 hartrees
Energy at 0K-7019.845979
Energy at 298.15K-7019.844763
HF Energy-7019.845979
Nuclear repulsion energy184.234479
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 B3PW91/3-21G*
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' 1515 1453 626.48      
2 A' 532 510 64.16      
3 A' 270 259 26.31      

Unscaled Zero Point Vibrational Energy (zpe) 1158.3 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 1111.3 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 B3PW91/3-21G*
ABC
2.62754 0.09694 0.09349

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.500 -1.671 0.000
O2 -0.438 -2.403 0.000
I3 0.000 0.583 0.000

Atom - Atom Distances (Å)
  N1 O2 I3
N11.19002.3096
O21.19003.0186
I32.30963.0186

picture of Nitrosyl iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 I3 115.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N 0.225      
2 O -0.178      
3 I -0.047      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.088 -0.797 0.000 0.801
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -40.073 -0.909 0.000
y -0.909 -36.381 0.000
z 0.000 0.000 -38.145
Traceless
 xyz
x -2.810 -0.909 0.000
y -0.909 2.728 0.000
z 0.000 0.000 0.082
Polar
3z2-r20.163
x2-y2-3.692
xy-0.909
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.975 0.041 0.000
y 0.041 10.101 0.000
z 0.000 0.000 3.475


<r2> (average value of r2) Å2
<r2> 110.946
(<r2>)1/2 10.533