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

using model chemistry: LSDA/6-311+G(3df,2p)

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 LSDA/6-311+G(3df,2p)
 hartrees
Energy at 0K-690.939194
Energy at 298.15K-690.938605
HF Energy-690.939194
Nuclear repulsion energy62.157199
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/6-311+G(3df,2p)
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 2177 2177 3.69      
2 Σ 300 300 68.73      
3 Π 80 80 6.75      
3 Π 80 80 6.75      

Unscaled Zero Point Vibrational Energy (zpe) 1318.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1318.2 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/6-311+G(3df,2p)
B
0.10342

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311+G(3df,2p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.278
C2 0.000 0.000 -1.240
N3 0.000 0.000 -2.405

Atom - Atom Distances (Å)
  K1 C2 N3
K12.51763.6823
C22.51761.1647
N33.68231.1647

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 LSDA/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.925      
2 C -0.317      
3 N -0.608      


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 11.631 11.631
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.327 0.000 0.000
y 0.000 -23.327 0.000
z 0.000 0.000 -31.271
Traceless
 xyz
x 3.972 0.000 0.000
y 0.000 3.972 0.000
z 0.000 0.000 -7.944
Polar
3z2-r2-15.888
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 4.077 0.000 0.000
y 0.000 4.078 0.000
z 0.000 0.000 7.884


<r2> (average value of r2) Å2
<r2> 96.940
(<r2>)1/2 9.846

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at LSDA/6-311+G(3df,2p)
 hartrees
Energy at 0K-690.940933
Energy at 298.15K 
HF Energy-690.940933
Nuclear repulsion energy65.706709
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/6-311+G(3df,2p)
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 2117 2117 124.44      
2 Σ 329 329 86.04      
3 Π 54i 54i 0.82      
3 Π 54i 54i 0.82      

Unscaled Zero Point Vibrational Energy (zpe) 1169.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1169.5 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 LSDA/6-311+G(3df,2p)
B
0.11965

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311+G(3df,2p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.182
C2 0.000 0.000 -2.359
N3 0.000 0.000 -1.186

Atom - Atom Distances (Å)
  K1 C2 N3
K13.54102.3681
C23.54101.1729
N32.36811.1729

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 LSDA/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.924      
2 C -0.236      
3 N -0.688      


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 11.610 11.610
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.299 0.000 0.000
y 0.000 -23.299 0.000
z 0.000 0.000 -33.456
Traceless
 xyz
x 5.078 0.000 0.000
y 0.000 5.078 0.000
z 0.000 0.000 -10.156
Polar
3z2-r2-20.313
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 4.120 0.000 0.001
y 0.000 4.120 -0.001
z 0.001 -0.001 7.727


<r2> (average value of r2) Å2
<r2> 86.448
(<r2>)1/2 9.298

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at LSDA/6-311+G(3df,2p)
 hartrees
Energy at 0K-690.945600
Energy at 298.15K-690.945499
HF Energy-690.945600
Nuclear repulsion energy70.290735
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/6-311+G(3df,2p)
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' 2107 2107 19.56      
2 A' 321 321 74.10      
3 A' 167 167 7.92      

Unscaled Zero Point Vibrational Energy (zpe) 1297.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1297.4 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/6-311+G(3df,2p)
ABC
1.93508 0.17506 0.16054

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311+G(3df,2p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.009 0.000
C2 0.626 -1.557 0.000
N3 -0.536 -1.403 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.64072.4707
C22.64071.1722
N32.47071.1722

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 68.758 K1 N3 C2 84.997
C2 K1 N3 26.245
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.867      
2 C -0.218      
3 N -0.650      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.470 9.411 0.000 9.423
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.502 0.937 0.000
y 0.937 -25.999 0.000
z 0.000 0.000 -23.349
Traceless
 xyz
x -2.828 0.937 0.000
y 0.937 -0.573 0.000
z 0.000 0.000 3.401
Polar
3z2-r26.802
x2-y2-1.503
xy0.937
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.199 -0.211 0.000
y -0.211 5.840 0.000
z 0.000 0.000 4.149


<r2> (average value of r2) Å2
<r2> 68.018
(<r2>)1/2 8.247