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

using model chemistry: TPSSh/6-311G**

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/6-311G**
 hartrees
Energy at 0K-692.817563
Energy at 298.15K-692.816944
HF Energy-692.817563
Nuclear repulsion energy61.186267
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/6-311G**
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 2178 3.71      
2 Σ 286 286 64.26      
3 Π 77 77 11.06      
3 Π 77 77 11.06      

Unscaled Zero Point Vibrational Energy (zpe) 1308.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1308.2 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 TPSSh/6-311G**
B
0.09960

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.303
C2 0.000 0.000 -1.274
N3 0.000 0.000 -2.444

Atom - Atom Distances (Å)
  K1 C2 N3
K12.57703.7471
C22.57701.1701
N33.74711.1701

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/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.758      
2 C -0.416      
3 N -0.342      


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 11.855 11.855
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 3.208 0.000 0.000
y 0.000 3.208 0.000
z 0.000 0.000 6.817


<r2> (average value of r2) Å2
<r2> 99.703
(<r2>)1/2 9.985

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at TPSSh/6-311G**
 hartrees
Energy at 0K-692.819990
Energy at 298.15K 
HF Energy-692.819990
Nuclear repulsion energy64.666856
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/6-311G**
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 2115 2115 121.48      
2 Σ 321 321 79.62      
3 Π 60i 60i 1.99      
3 Π 60i 60i 1.99      

Unscaled Zero Point Vibrational Energy (zpe) 1158.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1158.1 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 TPSSh/6-311G**
B
0.11534

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.205
C2 0.000 0.000 -2.396
N3 0.000 0.000 -1.217

Atom - Atom Distances (Å)
  K1 C2 N3
K13.60072.4216
C23.60071.1791
N32.42161.1791

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/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.759      
2 C -0.204      
3 N -0.556      


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 11.847 11.847
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 3.167 0.000 0.000
y 0.000 3.167 0.000
z 0.000 0.000 6.732


<r2> (average value of r2) Å2
<r2> 88.744
(<r2>)1/2 9.420

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at TPSSh/6-311G**
 hartrees
Energy at 0K-692.823959
Energy at 298.15K-692.823814
HF Energy-692.823959
Nuclear repulsion energy68.841176
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/6-311G**
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' 2101 2101 23.61      
2 A' 308 308 68.65      
3 A' 149 149 7.76      

Unscaled Zero Point Vibrational Energy (zpe) 1278.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1278.5 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/6-311G**
ABC
1.92989 0.16536 0.15231

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.037 0.000
C2 0.627 -1.618 0.000
N3 -0.537 -1.429 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.72802.5245
C22.72801.1792
N32.52451.1792

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 67.525 K1 N3 C2 86.904
C2 K1 N3 25.571
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.701      
2 C -0.256      
3 N -0.445      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.453 9.937 0.000 9.948
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 4.544 -0.258 0.000
y -0.258 4.765 0.000
z 0.000 0.000 3.352


<r2> (average value of r2) Å2
<r2> 70.778
(<r2>)1/2 8.413