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

using model chemistry: B2PLYP=FULL/3-21G*

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 B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-6982.129125
Energy at 298.15K-6982.126845
HF Energy-6982.009992
Nuclear repulsion energy162.714347
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 B2PLYP=FULL/3-21G*
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 2171 2171 0.01      
2 Σ 494 494 0.21      
3 Π 371 371 0.17      
3 Π 371 371 0.17      

Unscaled Zero Point Vibrational Energy (zpe) 1702.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1702.9 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 B2PLYP=FULL/3-21G*
B
0.10365

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.526
C2 0.000 0.000 -1.509
N3 0.000 0.000 -2.686

Atom - Atom Distances (Å)
  I1 C2 N3
I12.03453.2119
C22.03451.1773
N33.21191.1773

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