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All results from a given calculation for ICN (Cyanogen iodide)

using model chemistry: MP2/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at MP2/6-311G*
 hartrees
Energy at 0K-7009.622345
Energy at 298.15K 
HF Energy-7009.114386
Nuclear repulsion energy164.656902
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 MP2/6-311G*
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 2086 1983 0.28      
2 Σ 507 482 0.27      
3 Π 307 292 1.43      
3 Π 307 292 1.43      

Unscaled Zero Point Vibrational Energy (zpe) 1603.8 cm-1
Scaled (by 0.9503) Zero Point Vibrational Energy (zpe) 1524.1 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 MP2/6-311G*
B
0.10603

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.519
C2 0.000 0.000 -1.482
N3 0.000 0.000 -2.662

Atom - Atom Distances (Å)
  I1 C2 N3
I12.00093.1809
C22.00091.1800
N33.18091.1800

picture of Cyanogen iodide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
I1 C2 N3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability