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

using model chemistry: HF/CEP-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/CEP-31G
 hartrees
Energy at 0K-15.269154
Energy at 298.15K-15.268539
HF Energy-15.269154
Nuclear repulsion energy10.391451
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/CEP-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 2269 2045 9.24      
2 Σ 243 219 52.54      
3 Π 95 85 11.09      
3 Π 95 85 11.09      

Unscaled Zero Point Vibrational Energy (zpe) 1350.4 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 1217.3 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/CEP-31G
B
0.09005

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.373
C2 0.000 0.000 -1.370
N3 0.000 0.000 -2.553

Atom - Atom Distances (Å)
  K1 C2 N3
K12.74273.9258
C22.74271.1831
N33.92581.1831

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/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.873      
2 C -0.906      
3 N 0.033      


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 14.446 14.446
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.424 0.000 0.000
y 0.000 -14.424 0.000
z 0.000 0.000 -23.780
Traceless
 xyz
x 4.678 0.000 0.000
y 0.000 4.678 0.000
z 0.000 0.000 -9.356
Polar
3z2-r2-18.713
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 2.065 0.000 0.000
y 0.000 2.065 0.000
z 0.000 0.000 4.514


<r2> (average value of r2) Å2
<r2> 52.930
(<r2>)1/2 7.275

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at HF/CEP-31G
 hartrees
Energy at 0K-15.279397
Energy at 298.15K-15.278867
HF Energy-15.279397
Nuclear repulsion energy10.474768
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/CEP-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 2199 1982 139.17      
2 Σ 282 254 60.96      
3 Π 104 94 9.47      
3 Π 104 94 9.47      

Unscaled Zero Point Vibrational Energy (zpe) 1344.6 cm-1
Scaled (by 0.9014) Zero Point Vibrational Energy (zpe) 1212.0 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 HF/CEP-31G
B
0.10652

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.256
C2 0.000 0.000 -2.478
N3 0.000 0.000 -1.285

Atom - Atom Distances (Å)
  K1 C2 N3
K13.73442.5407
C23.73441.1936
N32.54071.1936

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/CEP-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.910      
2 C -0.544      
3 N -0.366      


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 13.551 13.551
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -14.119 0.000 0.000
y 0.000 -14.119 0.000
z 0.000 0.000 -23.722
Traceless
 xyz
x 4.802 0.000 0.000
y 0.000 4.802 0.000
z 0.000 0.000 -9.603
Polar
3z2-r2-19.207
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 1.896 0.000 0.000
y 0.000 1.896 0.000
z 0.000 0.000 4.077


<r2> (average value of r2) Å2
<r2> 45.218
(<r2>)1/2 6.724