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

using model chemistry: CCSD(T)/TZVP

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 CCSD(T)/TZVP
 hartrees
Energy at 0K-4157.817721
Energy at 298.15K-4157.815962
HF Energy-4157.445606
Nuclear repulsion energy210.461558
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(T)/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 212 204        

Unscaled Zero Point Vibrational Energy (zpe) 105.9 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 101.9 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 CCSD(T)/TZVP
B
0.07098

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.326
As2 0.000 0.000 1.246

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5721
As22.5721

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 CCSD(T)/TZVP
 hartrees
Energy at 0K-4157.776380
Energy at 298.15K-4157.774637
HF Energy-4157.383113
Nuclear repulsion energy212.337627
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(T)/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 223 215        

Unscaled Zero Point Vibrational Energy (zpe) 111.5 cm-1
Scaled (by 0.9625) Zero Point Vibrational Energy (zpe) 107.3 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(T)/TZVP
B
0.07225

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.315
As2 0.000 0.000 1.235

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5494
As22.5494

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