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

using model chemistry: B1B95/6-31G

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 B1B95/6-31G
 hartrees
Energy at 0K-692.742514
Energy at 298.15K-692.742029
HF Energy-692.742514
Nuclear repulsion energy60.505164
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 B1B95/6-31G
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 2179 2078 0.07      
2 Σ 307 292 52.21      
3 Π 108 103 15.39      
3 Π 108 103 15.39      

Unscaled Zero Point Vibrational Energy (zpe) 1351.2 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 1288.6 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 B1B95/6-31G
B
0.09737

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.318
C2 0.000 0.000 -1.289
N3 0.000 0.000 -2.472

Atom - Atom Distances (Å)
  K1 C2 N3
K12.60693.7896
C22.60691.1827
N33.78961.1827

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 B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.712      
2 C -0.287      
3 N -0.425      


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 12.708 12.708
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.234 0.000 0.000
y 0.000 -23.234 0.000
z 0.000 0.000 -30.058
Traceless
 xyz
x 3.412 0.000 0.000
y 0.000 3.412 0.000
z 0.000 0.000 -6.824
Polar
3z2-r2-13.648
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 2.884 0.000 -0.001
y 0.000 2.884 -0.001
z -0.001 -0.001 5.963


<r2> (average value of r2) Å2
<r2> 101.667
(<r2>)1/2 10.083

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-692.743815
Energy at 298.15K-692.743127
HF Energy-692.743815
Nuclear repulsion energy63.643626
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 B1B95/6-31G
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 2120 2022 78.00      
2 Σ 332 317 58.20      
3 Π 45 43 6.17      
3 Π 45 43 6.17      

Unscaled Zero Point Vibrational Energy (zpe) 1270.8 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 1211.9 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 B1B95/6-31G
B
0.11142

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.226
C2 0.000 0.000 -2.434
N3 0.000 0.000 -1.243

Atom - Atom Distances (Å)
  K1 C2 N3
K13.66032.4691
C23.66031.1912
N32.46911.1912

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 B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.761      
2 C -0.139      
3 N -0.621      


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 12.589 12.589
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.213 0.000 0.000
y 0.000 -23.213 0.000
z 0.000 0.000 -31.718
Traceless
 xyz
x 4.253 0.000 0.000
y 0.000 4.253 0.000
z 0.000 0.000 -8.505
Polar
3z2-r2-17.011
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 2.749 0.000 0.000
y 0.000 2.749 0.000
z 0.000 0.000 5.718


<r2> (average value of r2) Å2
<r2> 91.201
(<r2>)1/2 9.550

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at B1B95/6-31G
 hartrees
Energy at 0K-692.744698
Energy at 298.15K-692.744448
HF Energy-692.744698
Nuclear repulsion energy67.331045
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 B1B95/6-31G
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' 2092 1995 23.51      
2 A' 295 282 47.71      
3 A' 98 93 7.63      

Unscaled Zero Point Vibrational Energy (zpe) 1242.5 cm-1
Scaled (by 0.9537) Zero Point Vibrational Energy (zpe) 1185.0 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 B1B95/6-31G
ABC
1.90859 0.15624 0.14441

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.067 0.000
C2 0.631 -1.679 0.000
N3 -0.540 -1.456 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.81752.5805
C22.81751.1920
N32.58051.1920

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 66.301 K1 N3 C2 88.678
C2 K1 N3 25.021
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.689      
2 C -0.176      
3 N -0.513      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.252 11.008 0.000 11.011
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.944 0.802 0.000
y 0.802 -26.088 0.000
z 0.000 0.000 -23.532
Traceless
 xyz
x -3.134 0.802 0.000
y 0.802 -0.349 0.000
z 0.000 0.000 3.484
Polar
3z2-r26.967
x2-y2-1.857
xy0.802
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.214 -0.106 0.000
y -0.106 3.519 0.000
z 0.000 0.000 2.942


<r2> (average value of r2) Å2
<r2> 73.970
(<r2>)1/2 8.601