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

using model chemistry: G3B3

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 G3B3
 hartrees
Energy at 0K-692.570277
Energy at 298.15K-692.564954
HF Energy-692.759068
Nuclear repulsion energy61.437126
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 B3LYP/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 2220 2132 1.06      
2 Σ 288 276 52.42      
3 Π 67 65 9.81      
3 Π 67 65 9.81      

Unscaled Zero Point Vibrational Energy (zpe) 1321.3 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 1268.8 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 B3LYP/6-31G*
B
0.09761

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.317
C2 0.000 0.000 -1.293
N3 0.000 0.000 -2.466

Atom - Atom Distances (Å)
  K1 C2 N3
K12.60933.7823
C22.60931.1729
N33.78231.1729

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 B3LYP/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 11.939 11.939
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 101.444
(<r2>)1/2 10.072

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at G3B3
 hartrees
Energy at 0K-692.572361
Energy at 298.15K-692.568688
HF Energy-692.761622
Nuclear repulsion energy64.890414
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 B3LYP/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 2071 95.66      
2 Σ 325 312 61.88      
3 Π 83i 80i 2.27      
3 Π 83i 80i 2.27      

Unscaled Zero Point Vibrational Energy (zpe) 1157.6 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 1111.6 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 B3LYP/6-31G*
B
0.11290

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/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
K13.63582.4538
C23.63581.1820
N32.45381.1820

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 B3LYP/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 11.789 11.789
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 90.284
(<r2>)1/2 9.502

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at G3B3
 hartrees
Energy at 0K-692.576752
Energy at 298.15K-692.576786
HF Energy-692.767399
Nuclear repulsion energy68.931933
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 B3LYP/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' 2139 2054 21.45      
2 A' 308 296 60.65      
3 A' 186 178 3.09      

Unscaled Zero Point Vibrational Energy (zpe) 1316.0 cm-1
Scaled (by 0.9603) Zero Point Vibrational Energy (zpe) 1263.7 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 B3LYP/6-31G*
ABC
1.88829 0.16282 0.14990

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.046 0.000
C2 0.633 -1.594 0.000
N3 -0.543 -1.474 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.71492.5776
C22.71491.1821
N32.57761.1821

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 68.605 K1 N3 C2 85.578
C2 K1 N3 25.817
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.620      
2 C -0.139      
3 N -0.481      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.397 9.878 0.000 9.886
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


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


<r2> (average value of r2) Å2
<r2> 71.672
(<r2>)1/2 8.466