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

using model chemistry: LSDA/STO-3G

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/STO-3G
Rotational Constants (cm-1) from geometry optimized at LSDA/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (C*V)

Jump to S1C1 S1C3
Vibrational Frequencies calculated at LSDA/STO-3G
Rotational Constants (cm-1) from geometry optimized at LSDA/STO-3G
See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 3 (CS)

Jump to S1C1 S1C2
Energy calculated at LSDA/STO-3G
 hartrees
Energy at 0K-683.474941
Energy at 298.15K-683.475004
HF Energy-683.474941
Nuclear repulsion energy70.309541
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/STO-3G
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' 2055 1840 17.59      
2 A' 409 367 26.87      
3 A' 272 244 0.90      

Unscaled Zero Point Vibrational Energy (zpe) 1368.2 cm-1
Scaled (by 0.8955) Zero Point Vibrational Energy (zpe) 1225.2 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 LSDA/STO-3G
ABC
1.75333 0.18242 0.16523

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.989 0.000
C2 0.657 -1.429 0.000
N3 -0.563 -1.459 0.000

Atom - Atom Distances (Å)
  K1 C2 N3
K12.50522.5123
C22.50521.2202
N32.51231.2202

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 76.245 K1 N3 C2 75.606
C2 K1 N3 28.149
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at LSDA/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.439      
2 C -0.136      
3 N -0.303      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.378 7.202 0.000 7.212
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.185 -0.130 0.000
y -0.130 -21.974 0.000
z 0.000 0.000 -21.740
Traceless
 xyz
x -3.328 -0.130 0.000
y -0.130 1.488 0.000
z 0.000 0.000 1.839
Polar
3z2-r23.678
x2-y2-3.211
xy-0.130
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.341 -0.301 0.000
y -0.301 5.777 0.000
z 0.000 0.000 1.822


<r2> (average value of r2) Å2
<r2> 64.890
(<r2>)1/2 8.055