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

using model chemistry: MP3=FULL/cc-pVTZ-PP

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 MP3=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-387.574890
Energy at 298.15K 
HF Energy-386.980531
Nuclear repulsion energy88.760027
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 MP3=FULL/cc-pVTZ-PP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 Σ 2390 2390 4.39      
2 Σ 523 523 2.47      
3 Π 344 344 1.36      
3 Π 344 344 1.36      

Unscaled Zero Point Vibrational Energy (zpe) 1800.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1800.8 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 MP3=FULL/cc-pVTZ-PP
B
0.10852

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/cc-pVTZ-PP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.514
C2 0.000 0.000 -1.477
N3 0.000 0.000 -2.624

Atom - Atom Distances (Å)
  I1 C2 N3
I11.99053.1379
C21.99051.1474
N33.13791.1474

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