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

using model chemistry: BLYP/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
1 2 no C*V 1Σ
1 3 no CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-685.346466
Energy at 298.15K-685.346112
HF Energy-685.346466
Nuclear repulsion energy60.448633
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 BLYP/STO-3G
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 2134 1975 49.83      
2 Σ 339 314 19.15      
3 Π 163 151 7.12      
3 Π 163 151 7.12      

Unscaled Zero Point Vibrational Energy (zpe) 1399.8 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 1295.1 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 BLYP/STO-3G
B
0.09862

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.307
C2 0.000 0.000 -1.255
N3 0.000 0.000 -2.471

Atom - Atom Distances (Å)
  K1 C2 N3
K12.56163.7781
C22.56161.2165
N33.77811.2165

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 BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.420      
2 C -0.129      
3 N -0.292      


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 8.888 8.888
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.780 0.000 0.000
y 0.000 -21.780 0.000
z 0.000 0.000 -26.303
Traceless
 xyz
x 2.262 0.000 0.000
y 0.000 2.262 0.000
z 0.000 0.000 -4.524
Polar
3z2-r2-9.047
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 2.030 0.000 0.000
y 0.000 2.030 0.000
z 0.000 0.000 9.960


<r2> (average value of r2) Å2
<r2> 99.191
(<r2>)1/2 9.959

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-685.335327
Energy at 298.15K-685.334734
HF Energy-685.335327
Nuclear repulsion energy63.006274
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 BLYP/STO-3G
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 2070 1915 44.01      
2 Σ 344 318 11.67      
3 Π 85 79 5.38      
3 Π 85 79 5.38      

Unscaled Zero Point Vibrational Energy (zpe) 1291.8 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 1195.2 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 BLYP/STO-3G
B
0.11005

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.232
C2 0.000 0.000 -2.460
N3 0.000 0.000 -1.236

Atom - Atom Distances (Å)
  K1 C2 N3
K13.69262.4687
C23.69261.2239
N32.46871.2239

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 BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.467      
2 C -0.126      
3 N -0.340      


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 8.559 8.559
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -21.635 0.000 0.000
y 0.000 -21.635 0.000
z 0.000 0.000 -27.484
Traceless
 xyz
x 2.924 0.000 0.000
y 0.000 2.924 0.000
z 0.000 0.000 -5.848
Polar
3z2-r2-11.697
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 2.011 0.000 0.000
y 0.000 2.011 0.000
z 0.000 0.000 13.490


<r2> (average value of r2) Å2
<r2> 90.601
(<r2>)1/2 9.518

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-685.345983
Energy at 298.15K-685.345992
HF Energy-685.345983
Nuclear repulsion energy68.981340
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 BLYP/STO-3G
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' 1971 1824 19.38      
2 A' 379 350 24.79      
3 A' 253 234 0.24      

Unscaled Zero Point Vibrational Energy (zpe) 1301.4 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 1204.0 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 BLYP/STO-3G
ABC
1.71935 0.17413 0.15812

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.012 0.000
C2 0.663 -1.476 0.000
N3 -0.569 -1.482 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.57492.5584
C22.57491.2318
N32.55841.2318

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 75.369 K1 N3 C2 76.865
C2 K1 N3 27.766
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.456      
2 C -0.139      
3 N -0.317      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.324 7.384 0.000 7.391
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.173 -0.017 0.000
y -0.017 -22.245 0.000
z 0.000 0.000 -21.702
Traceless
 xyz
x -3.200 -0.017 0.000
y -0.017 1.193 0.000
z 0.000 0.000 2.007
Polar
3z2-r24.014
x2-y2-2.928
xy-0.017
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.411 -0.359 0.000
y -0.359 6.245 0.000
z 0.000 0.000 1.834


<r2> (average value of r2) Å2
<r2> 67.206
(<r2>)1/2 8.198