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

using model chemistry: QCISD(T)/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 QCISD(T)/Def2TZVPP
 hartrees
Energy at 0K-389.814898
Energy at 298.15K-389.812512
HF Energy-388.980168
Nuclear repulsion energy88.186685
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 QCISD(T)/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 2201 2201        
2 Σ 503 503        
3 Π 317 317        
3 Π 317 317        

Unscaled Zero Point Vibrational Energy (zpe) 1668.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1668.9 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 QCISD(T)/Def2TZVPP
B
0.10733

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.516
C2 0.000 0.000 -1.477
N3 0.000 0.000 -2.643

Atom - Atom Distances (Å)
  I1 C2 N3
I11.99283.1595
C21.99281.1667
N33.15951.1667

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