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

using model chemistry: TPSSh/6-31G(2df,p)

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 TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-692.759088
Energy at 298.15K-692.758331
HF Energy-692.759088
Nuclear repulsion energy61.121178
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 TPSSh/6-31G(2df,p)
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 2178 2102 3.08      
2 Σ 290 280 55.77      
3 Π 39 38 9.56      
3 Π 39 38 9.57      

Unscaled Zero Point Vibrational Energy (zpe) 1273.3 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1228.8 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 TPSSh/6-31G(2df,p)
B
0.09946

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.304
C2 0.000 0.000 -1.274
N3 0.000 0.000 -2.447

Atom - Atom Distances (Å)
  K1 C2 N3
K12.57753.7503
C22.57751.1729
N33.75031.1729

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 TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.645      
2 C -0.408      
3 N -0.237      


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 11.715 11.715
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 3.643 0.001 0.001
y 0.001 3.642 0.001
z 0.001 0.001 7.033


<r2> (average value of r2) Å2
<r2> 99.699
(<r2>)1/2 9.985

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-692.761617
Energy at 298.15K 
HF Energy-692.761617
Nuclear repulsion energy64.669897
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 TPSSh/6-31G(2df,p)
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 2113 2039 108.94      
2 Σ 328 316 68.55      
3 Π 87i 84i 1.13      
3 Π 87i 84i 1.13      

Unscaled Zero Point Vibrational Energy (zpe) 1133.2 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1093.5 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 TPSSh/6-31G(2df,p)
B
0.11548

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.204
C2 0.000 0.000 -2.396
N3 0.000 0.000 -1.214

Atom - Atom Distances (Å)
  K1 C2 N3
K13.59992.4181
C23.59991.1818
N32.41811.1818

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 TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.675      
2 C -0.343      
3 N -0.333      


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 11.631 11.631
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 3.632 0.000 0.000
y 0.000 3.633 0.000
z 0.000 0.000 6.857


<r2> (average value of r2) Å2
<r2> 88.562
(<r2>)1/2 9.411

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at TPSSh/6-31G(2df,p)
 hartrees
Energy at 0K-692.767849
Energy at 298.15K-692.767746
HF Energy-692.767849
Nuclear repulsion energy68.938896
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 TPSSh/6-31G(2df,p)
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' 2096 2023 22.03      
2 A' 309 299 63.22      
3 A' 175 169 4.56      

Unscaled Zero Point Vibrational Energy (zpe) 1290.1 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 1245.0 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 TPSSh/6-31G(2df,p)
ABC
1.89149 0.16704 0.15349

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G(2df,p)

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.033 0.000
C2 0.633 -1.581 0.000
N3 -0.542 -1.448 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.68962.5393
C22.68961.1827
N32.53931.1827

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 69.913 K1 N3 C2 84.147
C2 K1 N3 25.939
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.606      
2 C -0.304      
3 N -0.301      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.475 9.634 0.000 9.646
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 4.683 -0.149 -0.000
y -0.149 4.851 -0.000
z -0.000 -0.000 3.694


<r2> (average value of r2) Å2
<r2> 70.203
(<r2>)1/2 8.379