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

using model chemistry: B2PLYP/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 no C*V 1Σ
1 3 yes CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at B2PLYP/6-31G**
 hartrees
Energy at 0K-692.460870
Energy at 298.15K-692.460241
HF Energy-692.355839
Nuclear repulsion energy60.494089
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 B2PLYP/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 2150 2150 3.49      
2 Σ 290 290 54.38      
3 Π 74 74 10.57      
3 Π 74 74 10.57      

Unscaled Zero Point Vibrational Energy (zpe) 1293.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1293.8 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 B2PLYP/6-31G**
B
0.09720

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.319
C2 0.000 0.000 -1.292
N3 0.000 0.000 -2.473

Atom - Atom Distances (Å)
  K1 C2 N3
K12.61153.7917
C22.61151.1802
N33.79171.1802

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 B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.672      
2 C -0.255      
3 N -0.417      


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 12.127 12.127
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.126 0.000 0.000
y 0.000 -23.126 0.000
z 0.000 0.000 -30.341
Traceless
 xyz
x 3.608 0.000 0.000
y 0.000 3.608 0.000
z 0.000 0.000 -7.215
Polar
3z2-r2-14.431
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 3.220 0.000 0.000
y 0.000 3.219 0.000
z 0.000 0.000 6.430


<r2> (average value of r2) Å2
<r2> 101.824
(<r2>)1/2 10.091

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at B2PLYP/6-31G**
 hartrees
Energy at 0K-692.460545
Energy at 298.15K 
HF Energy-692.358417
Nuclear repulsion energy63.893199
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 B2PLYP/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 2107 2107 73.57      
2 Σ 326 326 65.91      
3 Π 80i 80i 2.29      
3 Π 80i 80i 2.29      

Unscaled Zero Point Vibrational Energy (zpe) 1136.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1136.1 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 B2PLYP/6-31G**
B
0.11235

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.221
C2 0.000 0.000 -2.424
N3 0.000 0.000 -1.237

Atom - Atom Distances (Å)
  K1 C2 N3
K13.64572.4579
C23.64571.1878
N32.45791.1878

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 B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.717      
2 C -0.140      
3 N -0.577      


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 12.049 12.049
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.123 0.000 0.000
y 0.000 -23.123 0.000
z 0.000 0.000 -32.496
Traceless
 xyz
x 4.687 0.000 0.000
y 0.000 4.687 0.000
z 0.000 0.000 -9.373
Polar
3z2-r2-18.747
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 3.166 0.000 0.000
y 0.000 3.166 0.000
z 0.000 0.000 6.230


<r2> (average value of r2) Å2
<r2> 90.704
(<r2>)1/2 9.524

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at B2PLYP/6-31G**
 hartrees
Energy at 0K-692.468497
Energy at 298.15K-692.468418
HF Energy-692.364096
Nuclear repulsion energy68.223522
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 B2PLYP/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' 2078 2078 12.99      
2 A' 309 309 62.97      
3 A' 193 193 2.48      

Unscaled Zero Point Vibrational Energy (zpe) 1290.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1290.0 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 B2PLYP/6-31G**
ABC
1.86102 0.16307 0.14993

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.046 0.000
C2 0.638 -1.583 0.000
N3 -0.547 -1.481 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.70532.5848
C22.70531.1888
N32.58481.1888

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 71.410 K1 N3 C2 82.746
C2 K1 N3 25.844
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.637      
2 C -0.159      
3 N -0.478      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.433 10.003 0.000 10.012
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.520 0.612 0.000
y 0.612 -25.948 0.000
z 0.000 0.000 -23.419
Traceless
 xyz
x -2.837 0.612 0.000
y 0.612 -0.479 0.000
z 0.000 0.000 3.316
Polar
3z2-r26.631
x2-y2-1.572
xy0.612
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.443 -0.050 0.000
y -0.050 4.358 0.000
z 0.000 0.000 3.352


<r2> (average value of r2) Å2
<r2> 71.703
(<r2>)1/2 8.468