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All results from a given calculation for GaAs (Gallium arsenide)

using model chemistry: MP2/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Π
2 1 yes C*V 1Σ

State 1 (3Π)

Jump to S2C1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-4153.339664
Energy at 298.15K 
HF Energy-4153.235454
Nuclear repulsion energy212.826997
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 MP2/6-31+G**
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 217 204 27.78 560615.10 0.12 0.22

Unscaled Zero Point Vibrational Energy (zpe) 108.5 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 102.0 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 MP2/6-31+G**
B
0.07258

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.312
As2 0.000 0.000 1.232

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5436
As22.5436

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

State 2 (1Σ)

Jump to S1C1
Energy calculated at MP2/6-31+G**
 hartrees
Energy at 0K-4153.290409
Energy at 298.15K 
HF Energy-4153.173013
Nuclear repulsion energy213.723862
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 MP2/6-31+G**
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 227 214 29.18 2269.11 0.42 0.59

Unscaled Zero Point Vibrational Energy (zpe) 113.6 cm-1
Scaled (by 0.9406) Zero Point Vibrational Energy (zpe) 106.9 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 MP2/6-31+G**
B
0.07319

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/6-31+G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.306
As2 0.000 0.000 1.227

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5329
As22.5329

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability