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

using model chemistry: PBE1PBE/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 PBE1PBE/3-21G
 hartrees
Energy at 0K-4140.380133
Energy at 298.15K 
HF Energy-4140.380133
Nuclear repulsion energy213.114326
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 PBE1PBE/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 233 223 23.89 229.36 0.32 0.48

Unscaled Zero Point Vibrational Energy (zpe) 116.3 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 111.7 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 PBE1PBE/3-21G
B
0.07277

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.310
As2 0.000 0.000 1.230

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5402
As22.5402

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.175      
2 As -0.175      


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 -0.757 0.757
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.154 0.000 0.000
y 0.000 -33.154 0.000
z 0.000 0.000 -41.130
Traceless
 xyz
x 3.988 0.000 0.000
y 0.000 3.988 0.000
z 0.000 0.000 -7.976
Polar
3z2-r2-15.952
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 8.401 0.000 0.000
y 0.000 8.401 0.000
z 0.000 0.000 15.286


<r2> (average value of r2) Å2
<r2> 125.507
(<r2>)1/2 11.203

State 2 (1Σ)

Jump to S1C1
Energy calculated at PBE1PBE/3-21G
 hartrees
Energy at 0K-4140.332946
Energy at 298.15K 
HF Energy-4140.332946
Nuclear repulsion energy213.883101
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 PBE1PBE/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 240 231 22.44 14148.10 0.36 0.53

Unscaled Zero Point Vibrational Energy (zpe) 120.2 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 115.5 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 PBE1PBE/3-21G
B
0.07330

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.305
As2 0.000 0.000 1.226

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5310
As22.5310

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.119      
2 As -0.119      


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 -0.253 0.253
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.677 0.000 0.000
y 0.000 -29.412 0.000
z 0.000 0.000 -40.809
Traceless
 xyz
x -2.566 0.000 0.000
y 0.000 9.831 0.000
z 0.000 0.000 -7.264
Polar
3z2-r2-14.529
x2-y2-8.265
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.980 0.000 0.000
y 0.000 -3.775 0.000
z 0.000 0.000 15.722


<r2> (average value of r2) Å2
<r2> 124.863
(<r2>)1/2 11.174