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

using model chemistry: LSDA/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 3 yes CS 1A'

Conformer 1 (C*V)

Jump to S1C2 S1C3
Vibrational Frequencies calculated at LSDA/TZVP
Rotational Constants (cm-1) from geometry optimized at LSDA/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at LSDA/TZVP
Rotational Constants (cm-1) from geometry optimized at LSDA/TZVP
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/TZVP
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at LSDA/TZVP
 hartrees
Energy at 0K-690.924708
Energy at 298.15K-690.924571
HF Energy-690.924708
Nuclear repulsion energy68.137117
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 LSDA/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' 2118 2094 15.68      
2 A' 295 291 54.61      
3 A' 163 161 4.65      

Unscaled Zero Point Vibrational Energy (zpe) 1288.1 cm-1
Scaled (by 0.9884) Zero Point Vibrational Energy (zpe) 1273.1 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 LSDA/TZVP
ABC
1.91672 0.16043 0.14804

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 1.054 0.000
C2 0.628 -1.604 0.000
N3 -0.539 -1.486 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.73172.5962
C22.73171.1732
N32.59621.1732

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 70.891 K1 N3 C2 83.833
C2 K1 N3 25.276
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.833      
2 C -0.444      
3 N -0.388      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.456 10.844 0.000 10.854
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -27.915 0.768 0.000
y 0.768 -26.306 0.000
z 0.000 0.000 -23.607
Traceless
 xyz
x -2.958 0.768 0.000
y 0.768 -0.545 0.000
z 0.000 0.000 3.503
Polar
3z2-r27.007
x2-y2-1.609
xy0.768
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.621 -0.214 -0.000
y -0.214 4.633 -0.000
z -0.000 -0.000 3.253


<r2> (average value of r2) Å2
<r2> 72.609
(<r2>)1/2 8.521