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All results from a given calculation for KCN (Potassium cyanide)

using model chemistry: ROMP2/STO-3G

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/STO-3G
 hartrees
Energy at 0K-684.352502
Energy at 298.15K 
HF Energy-684.196590
Nuclear repulsion energy69.289132
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/STO-3G
Rotational Constants (cm-1) from geometry optimized at ROMP2/STO-3G
ABC
1.73838 0.17590 0.15974

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.007 0.000
C2 0.660 -1.415 0.000
N3 -0.566 -1.519 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.51012.5886
C22.51011.2299
N32.58861.2299

picture of Potassium cyanide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 79.624 K1 N3 C2 72.513
C2 K1 N3 27.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.578      
2 C -0.178      
3 N -0.400      


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> 66.507
(<r2>)1/2 8.155