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

using model chemistry: MP2=FULL/STO-3G

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=FULL/STO-3G
 hartrees
Energy at 0K-6941.979788
Energy at 298.15K-6941.977294
HF Energy-6941.790045
Nuclear repulsion energy161.471480
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=FULL/STO-3G
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 2013 1790 17.37      
2 Σ 511 454 1.53      
3 Π 319 283 3.55      
3 Π 319 283 3.55      

Unscaled Zero Point Vibrational Energy (zpe) 1580.7 cm-1
Scaled (by 0.8889) Zero Point Vibrational Energy (zpe) 1405.1 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=FULL/STO-3G
B
0.10174

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.529
C2 0.000 0.000 -1.495
N3 0.000 0.000 -2.727

Atom - Atom Distances (Å)
  I1 C2 N3
I12.02413.2561
C22.02411.2320
N33.25611.2320

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