return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: BLYP/TZVP

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 BLYP/TZVP
 hartrees
Energy at 0K-692.786695
Energy at 298.15K-692.786078
HF Energy-692.786695
Nuclear repulsion energy59.529645
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 BLYP/TZVP
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 2116 2111 0.43      
2 Σ 254 253 49.30      
3 Π 88 88 14.37      
3 Π 88 88 14.37      

Unscaled Zero Point Vibrational Energy (zpe) 1273.3 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 1270.1 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 BLYP/TZVP
B
0.09301

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.350
C2 0.000 0.000 -1.341
N3 0.000 0.000 -2.516

Atom - Atom Distances (Å)
  K1 C2 N3
K12.69123.8665
C22.69121.1753
N33.86651.1753

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 BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.859      
2 C -0.596      
3 N -0.263      


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 12.896 12.896
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.657 0.000 0.000
y 0.000 -23.657 0.000
z 0.000 0.000 -30.877
Traceless
 xyz
x 3.610 0.000 0.000
y 0.000 3.610 0.000
z 0.000 0.000 -7.220
Polar
3z2-r2-14.440
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 3.436 0.000 -0.001
y 0.000 3.436 0.000
z -0.001 0.000 9.507


<r2> (average value of r2) Å2
<r2> 106.028
(<r2>)1/2 10.297

Conformer 2 (C*V)

Jump to S1C1 S1C3
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-692.788079
Energy at 298.15K-692.787407
HF Energy-692.788079
Nuclear repulsion energy62.657918
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 BLYP/TZVP
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 2069 2064 63.07      
2 Σ 288 287 53.93      
3 Π 62 62 3.85      
3 Π 62 62 3.85      

Unscaled Zero Point Vibrational Energy (zpe) 1240.3 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 1237.2 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 BLYP/TZVP
B
0.10679

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.255
C2 0.000 0.000 -2.471
N3 0.000 0.000 -1.288

Atom - Atom Distances (Å)
  K1 C2 N3
K13.72592.5433
C23.72591.1826
N32.54331.1826

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 BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.874      
2 C -0.397      
3 N -0.476      


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 13.016 13.016
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.526 0.000 0.000
y 0.000 -23.526 0.000
z 0.000 0.000 -33.491
Traceless
 xyz
x 4.982 0.000 0.000
y 0.000 4.982 0.000
z 0.000 0.000 -9.965
Polar
3z2-r2-19.930
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 3.247 0.000 0.000
y 0.000 3.247 0.000
z 0.000 0.000 10.480


<r2> (average value of r2) Å2
<r2> 94.944
(<r2>)1/2 9.744

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at BLYP/TZVP
 hartrees
Energy at 0K-692.789956
Energy at 298.15K-692.789751
HF Energy-692.789956
Nuclear repulsion energy66.462777
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 BLYP/TZVP
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' 2052 2046 16.58      
2 A' 269 269 51.11      
3 A' 142 141 5.48      

Unscaled Zero Point Vibrational Energy (zpe) 1231.2 cm-1
Scaled (by 0.9975) Zero Point Vibrational Energy (zpe) 1228.2 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 BLYP/TZVP
ABC
1.89989 0.15008 0.13910

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/TZVP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.089 0.000
C2 0.631 -1.675 0.000
N3 -0.541 -1.521 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.83572.6663
C22.83571.1827
N32.66631.1827

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 69.664 K1 N3 C2 85.759
C2 K1 N3 24.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.806      
2 C -0.415      
3 N -0.391      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.426 11.170 0.000 11.178
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.094 0.915 0.000
y 0.915 -26.894 0.000
z 0.000 0.000 -23.793
Traceless
 xyz
x -2.750 0.915 0.000
y 0.915 -0.951 0.000
z 0.000 0.000 3.701
Polar
3z2-r27.401
x2-y2-1.200
xy0.915
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.869 -0.332 0.000
y -0.332 5.595 0.000
z 0.000 0.000 3.452


<r2> (average value of r2) Å2
<r2> 76.432
(<r2>)1/2 8.743