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

using model chemistry: HF/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 yes C*V 1Σ

Conformer 1 (C*V)

Jump to S1C2
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-691.509487
Energy at 298.15K-691.508894
HF Energy-691.509487
Nuclear repulsion energy59.833706
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/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 2409 2189 3.01      
2 Σ 263 239 59.32      
3 Π 92 84 12.85      
3 Π 92 84 12.85      

Unscaled Zero Point Vibrational Energy (zpe) 1427.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 1297.4 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 HF/TZVP
B
0.09266

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.355
C2 0.000 0.000 -1.364
N3 0.000 0.000 -2.508

Atom - Atom Distances (Å)
  K1 C2 N3
K12.71923.8631
C22.71921.1439
N33.86311.1439

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/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.958      
2 C -0.607      
3 N -0.351      


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 13.994 13.994
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.046 0.000 0.000
y 0.000 -23.046 0.000
z 0.000 0.000 -31.677
Traceless
 xyz
x 4.316 0.000 0.000
y 0.000 4.316 0.000
z 0.000 0.000 -8.631
Polar
3z2-r2-17.263
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 2.285 0.000 0.000
y 0.000 2.285 0.000
z 0.000 0.000 4.522


<r2> (average value of r2) Å2
<r2> 106.274
(<r2>)1/2 10.309

Conformer 2 (C*V)

Jump to S1C1
Energy calculated at HF/TZVP
 hartrees
Energy at 0K-691.516555
Energy at 298.15K-691.515987
HF Energy-691.516555
Nuclear repulsion energy63.443672
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/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 2339 2126 127.37      
2 Σ 303 275 70.12      
3 Π 85 77 6.07      
3 Π 85 77 6.07      

Unscaled Zero Point Vibrational Energy (zpe) 1405.9 cm-1
Scaled (by 0.9086) Zero Point Vibrational Energy (zpe) 1277.4 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 HF/TZVP
B
0.10875

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.245
C2 0.000 0.000 -2.440
N3 0.000 0.000 -1.287

Atom - Atom Distances (Å)
  K1 C2 N3
K13.68502.5322
C23.68501.1528
N32.53221.1528

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 HF/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 K 0.954      
2 C -0.336      
3 N -0.618      


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 13.386 13.386
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.916 0.000 0.000
y 0.000 -22.916 0.000
z 0.000 0.000 -32.839
Traceless
 xyz
x 4.961 0.000 0.000
y 0.000 4.961 0.000
z 0.000 0.000 -9.923
Polar
3z2-r2-19.845
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 2.244 0.000 0.000
y 0.000 2.244 0.000
z 0.000 0.000 4.333


<r2> (average value of r2) Å2
<r2> 93.150
(<r2>)1/2 9.651