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

using model chemistry: MP4/Def2TZVPP

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 MP4/Def2TZVPP
 hartrees
Energy at 0K-389.824743
Energy at 298.15K-389.822351
HF Energy-388.977907
Nuclear repulsion energy88.025927
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 MP4/Def2TZVPP
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 2068 2068        
2 Σ 504 504        
3 Π 314 314        
3 Π 314 314        

Unscaled Zero Point Vibrational Energy (zpe) 1599.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1599.6 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 MP4/Def2TZVPP
B
0.10707

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.517
C2 0.000 0.000 -1.472
N3 0.000 0.000 -2.650

Atom - Atom Distances (Å)
  I1 C2 N3
I11.98903.1664
C21.98901.1774
N33.16641.1774

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