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: HF/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at HF/Def2TZVPP
 hartrees
Energy at 0K-691.519816
Energy at 298.15K 
HF Energy-691.519816
Nuclear repulsion energy60.537148
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 HF/Def2TZVPP
Rotational Constants (cm-1) from geometry optimized at HF/Def2TZVPP
B
0.09551

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.325
C2 0.000 0.000 -1.324
N3 0.000 0.000 -2.463

Atom - Atom Distances (Å)
  K1 C2 N3
K12.64973.7882
C22.64971.1385
N33.78821.1385

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 HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.880      
2 C -0.584      
3 N -0.296      


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 13.204 13.204
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.016 0.000 0.000
y 0.000 -23.016 0.000
z 0.000 0.000 -31.979
Traceless
 xyz
x 4.482 0.000 0.000
y 0.000 4.482 0.000
z 0.000 0.000 -8.963
Polar
3z2-r2-17.927
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 3.143 0.000 0.000
y 0.000 3.143 0.000
z 0.000 0.000 5.355


<r2> (average value of r2) Å2
<r2> 103.640
(<r2>)1/2 10.180