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: CID/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 CID/3-21G*
 hartrees
Energy at 0K-7016.702029
Energy at 298.15K-7016.700801
HF Energy-7016.366451
Nuclear repulsion energy183.556332
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 CID/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 1530 1424 826.32      
2 A' 538 500 71.91      
3 A' 257 239 45.85      

Unscaled Zero Point Vibrational Energy (zpe) 1162.3 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 1081.5 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 CID/3-21G*
ABC
2.62389 0.09613 0.09273

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.500 -1.692 0.000
O2 -0.438 -2.404 0.000
I3 0.000 0.586 0.000

Atom - Atom Distances (Å)
  N1 O2 I3
N11.17802.3325
O21.17803.0225
I32.33253.0225

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 114.824
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability