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

using model chemistry: MP4=FULL/3-21G

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 MP4=FULL/3-21G
 hartrees
Energy at 0K-4137.362384
Energy at 298.15K-4137.360605
HF Energy-4137.289101
Nuclear repulsion energy202.101174
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 MP4=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 199 194        

Unscaled Zero Point Vibrational Energy (zpe) 99.3 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 97.2 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 MP4=FULL/3-21G
B
0.06545

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.381
As2 0.000 0.000 1.297

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6787
As22.6787

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 MP4=FULL/3-21G
 hartrees
Energy at 0K-4137.316410
Energy at 298.15K-4137.314634
HF Energy-4137.227911
Nuclear repulsion energy202.940447
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 MP4=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 201 197        

Unscaled Zero Point Vibrational Energy (zpe) 100.6 cm-1
Scaled (by 0.9788) Zero Point Vibrational Energy (zpe) 98.4 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 MP4=FULL/3-21G
B
0.06600

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4=FULL/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.375
As2 0.000 0.000 1.292

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6675
As22.6675

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