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

using model chemistry: B3LYP/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 B3LYP/3-21G
 hartrees
Energy at 0K-4140.569451
Energy at 298.15K 
HF Energy-4140.569451
Nuclear repulsion energy205.304254
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 B3LYP/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 206 199 17.45 771.08 0.23 0.37

Unscaled Zero Point Vibrational Energy (zpe) 103.2 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 99.6 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 B3LYP/3-21G
B
0.06754

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.360
As2 0.000 0.000 1.277

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6368
As22.6368

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.257      
2 As -0.257      


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 -1.418 1.418
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.156 0.000 0.000
y 0.000 -33.156 0.000
z 0.000 0.000 -42.942
Traceless
 xyz
x 4.893 0.000 0.000
y 0.000 4.893 0.000
z 0.000 0.000 -9.785
Polar
3z2-r2-19.570
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 9.221 0.000 0.000
y 0.000 9.221 0.000
z 0.000 0.000 16.638


<r2> (average value of r2) Å2
<r2> 133.882
(<r2>)1/2 11.571

State 2 (1Σ)

Jump to S1C1
Energy calculated at B3LYP/3-21G
 hartrees
Energy at 0K-4140.541265
Energy at 298.15K 
HF Energy-4140.541265
Nuclear repulsion energy247.998381
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 B3LYP/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 315 304 0.94 2723.13 0.09 0.17

Unscaled Zero Point Vibrational Energy (zpe) 157.3 cm-1
Scaled (by 0.9649) Zero Point Vibrational Energy (zpe) 151.8 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 B3LYP/3-21G
B
0.09855

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.126
As2 0.000 0.000 1.057

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.1829
As22.1829

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.211      
2 As -0.211      


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 -2.780 2.780
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.229 0.000 0.000
y 0.000 -37.229 0.000
z 0.000 0.000 -26.333
Traceless
 xyz
x -5.448 0.000 0.000
y 0.000 -5.448 0.000
z 0.000 0.000 10.896
Polar
3z2-r221.791
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 13.545 0.000 0.000
y 0.000 13.545 0.000
z 0.000 0.000 14.135


<r2> (average value of r2) Å2
<r2> 97.148
(<r2>)1/2 9.856