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

using model chemistry: ROMP2/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 ROMP2/Def2TZVPP
 hartrees
Energy at 0K-389.815862
Energy at 298.15K-389.813502
HF Energy-388.978106
Nuclear repulsion energy88.603793
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 ROMP2/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 2095 2095        
2 Σ 525 525        
3 Π 321 321        
3 Π 321 321        

Unscaled Zero Point Vibrational Energy (zpe) 1630.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1630.9 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 ROMP2/Def2TZVPP
B
0.10856

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
I1 0.000 0.000 0.513
C2 0.000 0.000 -1.458
N3 0.000 0.000 -2.634

Atom - Atom Distances (Å)
  I1 C2 N3
I11.97113.1466
C21.97111.1755
N33.14661.1755

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
Charges from optimized geometry at ROMP2/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 I 0.305      
2 C -0.118      
3 N -0.187      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 93.103
(<r2>)1/2 9.649