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 AlH (aluminum monohydride)

using model chemistry: CCD/cc-pV(D+d)Z

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 CCD/cc-pV(D+d)Z
 hartrees
Energy at 0K-242.529103
Energy at 298.15K 
HF Energy-242.455577
Nuclear repulsion energy4.169275
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 CCD/cc-pV(D+d)Z
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 1702 1702 550.72      

Unscaled Zero Point Vibrational Energy (zpe) 851.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 851.2 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 CCD/cc-pV(D+d)Z
B
6.37338

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/cc-pV(D+d)Z

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Al1 0.000 0.000 0.118
H2 0.000 0.000 -1.532

Atom - Atom Distances (Å)
  Al1 H2
Al11.6500
H21.6500

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