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

using model chemistry: CCSD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-4157.554543
Energy at 298.15K 
HF Energy-4157.388153
Nuclear repulsion energy209.457283
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/cc-pVDZ
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 212 201 18.99      

Unscaled Zero Point Vibrational Energy (zpe) 106.2 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 100.6 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/cc-pVDZ
B
0.07030

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.333
As2 0.000 0.000 1.252

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5845
As22.5845

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/cc-pVDZ
 hartrees
Energy at 0K-4157.510070
Energy at 298.15K-4157.508332
HF Energy-4157.325156
Nuclear repulsion energy211.759738
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/cc-pVDZ
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 227 215 21.82      

Unscaled Zero Point Vibrational Energy (zpe) 113.6 cm-1
Scaled (by 0.9473) Zero Point Vibrational Energy (zpe) 107.6 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/cc-pVDZ
B
0.07185

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.318
As2 0.000 0.000 1.238

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5564
As22.5564

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