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 KH (Potassium hydride)

using model chemistry: CCSD/TZVP

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 CCSD/TZVP
 hartrees
Energy at 0K-599.703201
Energy at 298.15K-599.704129
HF Energy-599.675607
Nuclear repulsion energy4.209818
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 CCSD/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 883 842 247.43      

Unscaled Zero Point Vibrational Energy (zpe) 441.3 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 421.2 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 CCSD/TZVP
B
3.00829

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
K1 0.000 0.000 0.119
H2 0.000 0.000 -2.269

Atom - Atom Distances (Å)
  K1 H2
K12.3883
H22.3883

picture of Potassium hydride state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability