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

using model chemistry: B2PLYP=FULL/3-21G*

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)

Jump to S1C2 S1C3
Energy calculated at B2PLYP=FULL/3-21G*
 hartrees
Energy at 0K-688.938956
Energy at 298.15K-688.938177
HF Energy-688.861780
Nuclear repulsion energy60.414608
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 B2PLYP=FULL/3-21G*
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 2077 2077 10.09      
2 Σ 275 275 48.02      
3 Π 39 39 18.15      
3 Π 39 39 18.15      

Unscaled Zero Point Vibrational Energy (zpe) 1214.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1214.7 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 B2PLYP=FULL/3-21G*
B
0.09719

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 1.319
C2 0.000 0.000 -1.288
N3 0.000 0.000 -2.475

Atom - Atom Distances (Å)
  K1 C2 N3
K12.60703.7940
C22.60701.1870
N33.79401.1870

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
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