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

using model chemistry: CCSD=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 CCSD=FULL/cc-pVTZ-PP
 hartrees
Energy at 0K-387.580967
Energy at 298.15K 
HF Energy-386.979781
Nuclear repulsion energy88.426309
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 CCSD=FULL/cc-pVTZ-PP
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 2306 2306 0.91      
2 Σ 514 514 1.95      
3 Π 339 339 1.38      
3 Π 339 339 1.38      

Unscaled Zero Point Vibrational Energy (zpe) 1748.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1748.6 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 CCSD=FULL/cc-pVTZ-PP
B
0.10775

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

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 -1.480
N3 0.000 0.000 -2.635

Atom - Atom Distances (Å)
  I1 C2 N3
I11.99563.1500
C21.99561.1544
N33.15001.1544

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