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

using model chemistry: B3PW91/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 B3PW91/Def2TZVPP
 hartrees
Energy at 0K-390.660654
Energy at 298.15K-390.658305
HF Energy-390.660654
Nuclear repulsion energy88.741832
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 B3PW91/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 2284 2284 12.14      
2 Σ 507 507 0.52      
3 Π 331 331 1.02      
3 Π 331 331 1.02      

Unscaled Zero Point Vibrational Energy (zpe) 1727.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1727.0 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 B3PW91/Def2TZVPP
B
0.10859

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/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 -1.471
N3 0.000 0.000 -2.626

Atom - Atom Distances (Å)
  I1 C2 N3
I11.98483.1393
C21.98481.1545
N33.13931.1545

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 B3PW91/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 I 0.236      
2 C -0.196      
3 N -0.040      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 3.759 3.759
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.220 0.000 0.000
y 0.000 -37.220 0.000
z 0.000 0.000 -44.162
Traceless
 xyz
x 3.471 0.000 0.000
y 0.000 3.471 0.000
z 0.000 0.000 -6.942
Polar
3z2-r2-13.885
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.670 0.000 0.000
y 0.000 4.670 0.000
z 0.000 0.000 9.821


<r2> (average value of r2) Å2
<r2> 92.540
(<r2>)1/2 9.620