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

using model chemistry: B3LYPultrafine/3-21G

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 B3LYPultrafine/3-21G
 hartrees
Energy at 0K-689.245386
Energy at 298.15K-689.244861
HF Energy-689.245386
Nuclear repulsion energy60.830610
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 B3LYPultrafine/3-21G
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 2167 2091 4.11      
2 Σ 280 270 43.99      
3 Π 105 102 18.91      
3 Π 105 102 18.91      

Unscaled Zero Point Vibrational Energy (zpe) 1328.9 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 1282.3 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 B3LYPultrafine/3-21G
B
0.09851

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.310
C2 0.000 0.000 -1.280
N3 0.000 0.000 -2.458

Atom - Atom Distances (Å)
  K1 C2 N3
K12.59003.7683
C22.59001.1783
N33.76831.1783

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 B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.631      
2 C -0.183      
3 N -0.448      


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 12.055 12.055
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.982 0.000 0.000
y 0.000 -23.982 0.000
z 0.000 0.000 -28.861
Traceless
 xyz
x 2.440 0.000 0.000
y 0.000 2.440 0.000
z 0.000 0.000 -4.879
Polar
3z2-r2-9.758
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 3.508 0.000 0.000
y 0.000 3.508 0.000
z 0.000 0.000 6.470


<r2> (average value of r2) Å2
<r2> 100.734
(<r2>)1/2 10.037

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at B3LYPultrafine/3-21G
 hartrees
Energy at 0K-689.247283
Energy at 298.15K 
HF Energy-689.247283
Nuclear repulsion energy64.082709
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 B3LYPultrafine/3-21G
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 2114 2039 75.73      
2 Σ 308 297 46.99      
3 Π 46i 44i 3.51      
3 Π 46i 44i 3.51      

Unscaled Zero Point Vibrational Energy (zpe) 1165.0 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 1124.1 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 B3LYPultrafine/3-21G
B
0.11310

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.217
C2 0.000 0.000 -2.417
N3 0.000 0.000 -1.231

Atom - Atom Distances (Å)
  K1 C2 N3
K13.63452.4484
C23.63451.1861
N32.44841.1861

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 B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.635      
2 C -0.008      
3 N -0.628      


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 12.216 12.216
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.996 0.000 0.000
y 0.000 -23.996 0.000
z 0.000 0.000 -31.910
Traceless
 xyz
x 3.957 0.000 0.000
y 0.000 3.957 0.000
z 0.000 0.000 -7.913
Polar
3z2-r2-15.827
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 3.405 0.000 0.000
y 0.000 3.405 0.000
z 0.000 0.000 6.908


<r2> (average value of r2) Å2
<r2> 90.455
(<r2>)1/2 9.511

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at B3LYPultrafine/3-21G
 hartrees
Energy at 0K-689.251043
Energy at 298.15K-689.250871
HF Energy-689.251043
Nuclear repulsion energy67.664324
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 B3LYPultrafine/3-21G
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' 2073 2000 13.68      
2 A' 293 283 42.95      
3 A' 144 139 5.36      

Unscaled Zero Point Vibrational Energy (zpe) 1255.1 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 1211.0 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 B3LYPultrafine/3-21G
ABC
1.89376 0.15858 0.14633

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.059 0.000
C2 0.633 -1.647 0.000
N3 -0.542 -1.464 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.77902.5814
C22.77901.1890
N32.58141.1890

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 68.023 K1 N3 C2 86.691
C2 K1 N3 25.286
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.581      
2 C -0.066      
3 N -0.516      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.467 10.542 0.000 10.552
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.437 1.003 0.000
y 1.003 -25.860 0.000
z 0.000 0.000 -24.268
Traceless
 xyz
x -3.373 1.003 0.000
y 1.003 0.492 0.000
z 0.000 0.000 2.880
Polar
3z2-r25.760
x2-y2-2.577
xy1.003
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.386 -0.100 0.000
y -0.100 3.994 0.000
z 0.000 0.000 3.473


<r2> (average value of r2) Å2
<r2> 73.422
(<r2>)1/2 8.569