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

using model chemistry: B3LYP/LANL2DZ

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
1 3 no CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-120.973447
Energy at 298.15K-120.972904
HF Energy-120.973447
Nuclear repulsion energy38.121172
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 B3LYP/LANL2DZ
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 2089 2008 0.11      
2 Σ 274 264 51.01      
3 Π 104 100 16.25      
3 Π 104 100 16.25      

Unscaled Zero Point Vibrational Energy (zpe) 1285.4 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 1235.5 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 B3LYP/LANL2DZ
B
0.09546

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.331
C2 0.000 0.000 -1.300
N3 0.000 0.000 -2.498

Atom - Atom Distances (Å)
  K1 C2 N3
K12.63033.8285
C22.63031.1982
N33.82851.1982

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 B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.767      
2 C -0.566      
3 N -0.200      


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 12.963 12.963
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.049 0.000 0.000
y 0.000 -23.049 0.000
z 0.000 0.000 -29.986
Traceless
 xyz
x 3.469 0.000 0.000
y 0.000 3.469 0.000
z 0.000 0.000 -6.937
Polar
3z2-r2-13.874
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 3.049 0.000 0.000
y 0.000 3.049 0.000
z 0.000 0.000 6.103


<r2> (average value of r2) Å2
<r2> 85.584
(<r2>)1/2 9.251

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-120.975345
Energy at 298.15K-120.974745
HF Energy-120.975345
Nuclear repulsion energy39.600585
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 B3LYP/LANL2DZ
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 2034 1955 70.73      
2 Σ 310 298 57.57      
3 Π 76 73 4.95      
3 Π 76 73 4.94      

Unscaled Zero Point Vibrational Energy (zpe) 1247.3 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 1198.9 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 B3LYP/LANL2DZ
B
0.10989

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.234
C2 0.000 0.000 -2.454
N3 0.000 0.000 -1.247

Atom - Atom Distances (Å)
  K1 C2 N3
K13.68842.4818
C23.68841.2066
N32.48181.2066

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 B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.782      
2 C -0.288      
3 N -0.494      


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 12.905 12.905
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.850 0.000 0.000
y 0.000 -22.850 0.000
z 0.000 0.000 -32.549
Traceless
 xyz
x 4.850 0.000 0.000
y 0.000 4.850 0.000
z 0.000 0.000 -9.700
Polar
3z2-r2-19.400
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 2.836 0.000 -0.000
y 0.000 2.836 0.000
z -0.000 0.000 6.102


<r2> (average value of r2) Å2
<r2> 77.027
(<r2>)1/2 8.777

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at B3LYP/LANL2DZ
 hartrees
Energy at 0K-120.973950
Energy at 298.15K-120.973659
HF Energy-120.973950
Nuclear repulsion energy41.048717
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 B3LYP/LANL2DZ
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' 2008 1930 29.17      
2 A' 301 289 44.35      
3 A' 73 70 9.55      

Unscaled Zero Point Vibrational Energy (zpe) 1190.8 cm-1
Scaled (by 0.9612) Zero Point Vibrational Energy (zpe) 1144.6 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 B3LYP/LANL2DZ
ABC
1.97551 0.14858 0.13818

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/LANL2DZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.092 0.000
C2 0.621 -1.786 0.000
N3 -0.532 -1.431 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.94422.5786
C22.94421.2070
N32.57861.2070

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 60.718 K1 N3 C2 95.186
C2 K1 N3 24.096
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/LANL2DZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.726      
2 C -0.319      
3 N -0.407      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.284 11.467 0.000 11.471
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.753 1.583 0.000
y 1.583 -26.599 0.000
z 0.000 0.000 -23.228
Traceless
 xyz
x -2.840 1.583 0.000
y 1.583 -1.108 0.000
z 0.000 0.000 3.948
Polar
3z2-r27.896
x2-y2-1.154
xy1.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.479 -0.374 0.000
y -0.374 3.784 0.000
z 0.000 0.000 3.164


<r2> (average value of r2) Å2
<r2> 64.666
(<r2>)1/2 8.042