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

using model chemistry: HF/CEP-121G

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 HF/CEP-121G
 hartrees
Energy at 0K-263.206183
Energy at 298.15K 
HF Energy-263.206183
Nuclear repulsion energy21.119612
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 HF/CEP-121G
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 192 175 21.93 167.02 0.56 0.72

Unscaled Zero Point Vibrational Energy (zpe) 95.9 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 87.5 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 HF/CEP-121G
B
0.06784

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.357
As2 0.000 0.000 1.274

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6309
As22.6309

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.227      
2 As -0.227      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.570 2.570
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.563 0.000 0.000
y 0.000 -28.563 0.000
z 0.000 0.000 -40.006
Traceless
 xyz
x 5.721 0.000 0.000
y 0.000 5.721 0.000
z 0.000 0.000 -11.443
Polar
3z2-r2-22.886
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.450 0.000 0.000
y 0.000 7.450 0.000
z 0.000 0.000 16.666


<r2> (average value of r2) Å2
<r2> 66.987
(<r2>)1/2 8.185

State 2 (1Σ)

Jump to S1C1
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-263.145009
Energy at 298.15K 
HF Energy-263.145009
Nuclear repulsion energy21.398195
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 HF/CEP-121G
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 215 196 37.31 142.32 0.63 0.78

Unscaled Zero Point Vibrational Energy (zpe) 107.6 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 98.1 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 HF/CEP-121G
B
0.06964

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.339
As2 0.000 0.000 1.258

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5966
As22.5966

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.213      
2 As -0.213      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -2.262 2.262
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.554 0.000 0.000
y 0.000 -33.783 0.000
z 0.000 0.000 -39.606
Traceless
 xyz
x 12.140 0.000 0.000
y 0.000 -1.703 0.000
z 0.000 0.000 -10.437
Polar
3z2-r2-20.875
x2-y29.228
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 8.949 0.000 0.000
y 0.000 4.645 0.000
z 0.000 0.000 16.553


<r2> (average value of r2) Å2
<r2> 65.946
(<r2>)1/2 8.121