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

using model chemistry: MP2=FULL/6-311G**

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)

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Energy calculated at MP2=FULL/6-311G**
 hartrees
Energy at 0K-692.105924
Energy at 298.15K-692.105292
HF Energy-691.496665
Nuclear repulsion energy60.571560
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 MP2=FULL/6-311G**
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 2040 1935 14.28      
2 Σ 287 272 63.42      
3 Π 73 69 13.26      
3 Π 73 69 13.26      

Unscaled Zero Point Vibrational Energy (zpe) 1236.6 cm-1
Scaled (by 0.9486) Zero Point Vibrational Energy (zpe) 1173.0 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 MP2=FULL/6-311G**
B
0.09776

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.315
C2 0.000 0.000 -1.284
N3 0.000 0.000 -2.469

Atom - Atom Distances (Å)
  K1 C2 N3
K12.59843.7835
C22.59841.1852
N33.78351.1852

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

Conformer 2 (C*V)

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