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

using model chemistry: LSDA/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at LSDA/6-31G
Rotational Constants (cm-1) from geometry optimized at LSDA/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at LSDA/6-31G
Rotational Constants (cm-1) from geometry optimized at LSDA/6-31G
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at LSDA/6-31G
 hartrees
Energy at 0K-690.809521
Energy at 298.15K-690.809365
HF Energy-690.809521
Nuclear repulsion energy68.136742
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 LSDA/6-31G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 2038 1996 15.40      
2 A' 305 299 46.82      
3 A' 147 144 3.04      

Unscaled Zero Point Vibrational Energy (zpe) 1244.6 cm-1
Scaled (by 0.9797) Zero Point Vibrational Energy (zpe) 1219.4 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 LSDA/6-31G
ABC
1.84290 0.16336 0.15006

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.044 0.000
C2 0.641 -1.599 0.000
N3 -0.549 -1.464 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.71982.5682
C22.71981.1981
N32.56821.1981

picture of Potassium cyanide state 1 conformation 3
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 69.926 K1 N3 C2 84.087
C2 K1 N3 25.986
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.620      
2 C -0.180      
3 N -0.440      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.398 10.373 0.000 10.380
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.374 0.515 0.000
y 0.515 -25.559 0.000
z 0.000 0.000 -24.053
Traceless
 xyz
x -3.568 0.515 0.000
y 0.515 0.655 0.000
z 0.000 0.000 2.913
Polar
3z2-r25.827
x2-y2-2.815
xy0.515
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.774 0.055 0.000
y 0.055 4.522 0.000
z 0.000 0.000 3.695


<r2> (average value of r2) Å2
<r2> 71.885
(<r2>)1/2 8.479