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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-692.749861
Energy at 298.15K-692.749227
HF Energy-692.749861
Nuclear repulsion energy60.639750
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/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 2221 2128 1.06      
2 Σ 290 277 52.41      
3 Π 73 70 9.80      
3 Π 73 70 9.80      

Unscaled Zero Point Vibrational Energy (zpe) 1328.4 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 1272.7 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/6-31G*
B
0.09746

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/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 -1.294
N3 0.000 0.000 -2.467

Atom - Atom Distances (Å)
  K1 C2 N3
K12.61203.7849
C22.61201.1729
N33.78491.1729

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/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.654      
2 C -0.225      
3 N -0.429      


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 11.951 11.951
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.138 0.000 0.000
y 0.000 -23.138 0.000
z 0.000 0.000 -30.228
Traceless
 xyz
x 3.545 0.000 0.000
y 0.000 3.545 0.000
z 0.000 0.000 -7.091
Polar
3z2-r2-14.182
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 3.427 0.000 0.000
y 0.000 3.427 0.000
z 0.000 0.000 7.147


<r2> (average value of r2) Å2
<r2> 101.580
(<r2>)1/2 10.079

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-692.750301
Energy at 298.15K 
HF Energy-692.750301
Nuclear repulsion energy64.098659
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/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 2156 2066 95.88      
2 Σ 327 313 61.93      
3 Π 77i 74i 2.27      
3 Π 77i 74i 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 1164.5 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 1115.6 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 B3LYPultrafine/6-31G*
B
0.11299

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.218
C2 0.000 0.000 -2.417
N3 0.000 0.000 -1.235

Atom - Atom Distances (Å)
  K1 C2 N3
K13.63452.4526
C23.63451.1820
N32.45261.1820

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/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.694      
2 C -0.127      
3 N -0.567      


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 11.782 11.782
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.177 0.000 0.000
y 0.000 -23.177 0.000
z 0.000 0.000 -32.092
Traceless
 xyz
x 4.458 0.000 0.000
y 0.000 4.458 0.000
z 0.000 0.000 -8.916
Polar
3z2-r2-17.831
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 3.428 0.000 0.000
y 0.000 3.428 0.000
z 0.000 0.000 7.042


<r2> (average value of r2) Å2
<r2> 90.226
(<r2>)1/2 9.499

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at B3LYPultrafine/6-31G*
 hartrees
Energy at 0K-692.757560
Energy at 298.15K-692.757466
HF Energy-692.757560
Nuclear repulsion energy68.301252
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/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' 2138 2048 21.53      
2 A' 307 294 60.60      
3 A' 187 179 3.10      

Unscaled Zero Point Vibrational Energy (zpe) 1315.7 cm-1
Scaled (by 0.958) Zero Point Vibrational Energy (zpe) 1260.5 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 B3LYPultrafine/6-31G*
ABC
1.88882 0.16264 0.14975

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.047 0.000
C2 0.633 -1.596 0.000
N3 -0.543 -1.473 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.71742.5780
C22.71741.1821
N32.57801.1821

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 70.587 K1 N3 C2 83.788
C2 K1 N3 25.625
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.620      
2 C -0.138      
3 N -0.482      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.396 9.885 0.000 9.893
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.388 0.607 0.000
y 0.607 -25.879 0.000
z 0.000 0.000 -23.428
Traceless
 xyz
x -2.735 0.607 0.000
y 0.607 -0.471 0.000
z 0.000 0.000 3.206
Polar
3z2-r26.412
x2-y2-1.509
xy0.607
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.587 -0.073 0.000
y -0.073 4.743 0.000
z 0.000 0.000 3.547


<r2> (average value of r2) Å2
<r2> 71.731
(<r2>)1/2 8.469