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

using model chemistry: HF/6-31G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C*V 1Σ
1 2 yes C*V 1Σ

Conformer 1 (C*V)

Jump to S1C2
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-691.393628
Energy at 298.15K-691.393113
HF Energy-691.393628
Nuclear repulsion energy60.156286
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 HF/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 Σ 2359 2130 2.00      
2 Σ 283 256 59.37      
3 Π 108 97 11.88      
3 Π 108 97 11.88      

Unscaled Zero Point Vibrational Energy (zpe) 1428.5 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 1289.8 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 HF/6-31G
B
0.09504

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.336
C2 0.000 0.000 -1.325
N3 0.000 0.000 -2.490

Atom - Atom Distances (Å)
  K1 C2 N3
K12.66123.8255
C22.66121.1643
N33.82551.1643

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 180.000 K1 N3 C2 0.000
C2 K1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.792      
2 C -0.298      
3 N -0.495      


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 13.637 13.637
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.871 0.000 0.000
y 0.000 -22.871 0.000
z 0.000 0.000 -31.630
Traceless
 xyz
x 4.380 0.000 0.000
y 0.000 4.380 0.000
z 0.000 0.000 -8.759
Polar
3z2-r2-17.519
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 1.961 0.000 0.000
y 0.000 1.961 0.000
z 0.000 0.000 4.367


<r2> (average value of r2) Å2
<r2> 103.941
(<r2>)1/2 10.195

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at HF/6-31G
 hartrees
Energy at 0K-691.401135
Energy at 298.15K-691.400583
HF Energy-691.401135
Nuclear repulsion energy63.775665
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 HF/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 Σ 2283 2061 124.03      
2 Σ 325 294 68.36      
3 Π 83 75 9.51      
3 Π 83 75 9.51      

Unscaled Zero Point Vibrational Energy (zpe) 1387.1 cm-1
Scaled (by 0.9029) Zero Point Vibrational Energy (zpe) 1252.4 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 HF/6-31G
B
0.11124

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.229
C2 0.000 0.000 -2.428
N3 0.000 0.000 -1.254

Atom - Atom Distances (Å)
  K1 C2 N3
K13.65672.4822
C23.65671.1745
N32.48221.1745

picture of Potassium cyanide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
K1 C2 N3 0.000 K1 N3 C2 180.000
C2 K1 N3 0.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.838      
2 C -0.080      
3 N -0.758      


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 12.778 12.778
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.732 0.000 0.000
y 0.000 -22.732 0.000
z 0.000 0.000 -31.405
Traceless
 xyz
x 4.337 0.000 0.000
y 0.000 4.337 0.000
z 0.000 0.000 -8.673
Polar
3z2-r2-17.346
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 1.853 0.000 0.000
y 0.000 1.853 0.000
z 0.000 0.000 4.060


<r2> (average value of r2) Å2
<r2> 91.056
(<r2>)1/2 9.542