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

using model chemistry: B2PLYP/6-31G*

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 B2PLYP/6-31G*
 hartrees
Energy at 0K-4155.676309
Energy at 298.15K 
HF Energy-4155.639738
Nuclear repulsion energy214.102472
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 B2PLYP/6-31G*
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 219 207 23.72 221.26 0.33 0.50

Unscaled Zero Point Vibrational Energy (zpe) 109.3 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 103.7 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 B2PLYP/6-31G*
B
0.07345

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.304
As2 0.000 0.000 1.225

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5285
As22.5285

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.129      
2 As -0.129      


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 -0.878 0.878
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.155 0.000 0.000
y 0.000 -33.155 0.000
z 0.000 0.000 -41.616
Traceless
 xyz
x 4.230 0.000 0.000
y 0.000 4.230 0.000
z 0.000 0.000 -8.460
Polar
3z2-r2-16.921
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 8.644 0.000 0.000
y 0.000 8.644 0.000
z 0.000 0.000 15.500


<r2> (average value of r2) Å2
<r2> 124.647
(<r2>)1/2 11.165

State 2 (1Σ)

Jump to S1C1
Energy calculated at B2PLYP/6-31G*
 hartrees
Energy at 0K-4155.633167
Energy at 298.15K 
HF Energy-4155.591468
Nuclear repulsion energy214.785928
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 B2PLYP/6-31G*
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 22.05 0.00 0.34 0.50

Unscaled Zero Point Vibrational Energy (zpe) 113.4 cm-1
Scaled (by 0.9492) 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 B2PLYP/6-31G*
B
0.07392

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.300
As2 0.000 0.000 1.221

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5204
As22.5204

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.068      
2 As -0.068      


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 -0.375 0.375
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.755 0.000 0.000
y 0.000 -29.366 0.000
z 0.000 0.000 -41.203
Traceless
 xyz
x -2.470 0.000 0.000
y 0.000 10.113 0.000
z 0.000 0.000 -7.643
Polar
3z2-r2-15.285
x2-y2-8.389
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.416 0.000 0.000
y 0.000 55.658 0.000
z 0.000 0.000 15.983


<r2> (average value of r2) Å2
<r2> 124.080
(<r2>)1/2 11.139