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

using model chemistry: B2PLYP/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 B2PLYP/3-21G*
 hartrees
Energy at 0K-4140.076204
Energy at 298.15K 
HF Energy-4140.025368
Nuclear repulsion energy212.700626
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/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 232 232 22.31 145.32 0.40 0.57

Unscaled Zero Point Vibrational Energy (zpe) 115.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 115.8 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 B2PLYP/3-21G*
B
0.07249

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.312
As2 0.000 0.000 1.233

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5451
As22.5451

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/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 -0.755 0.755
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.307 0.000 0.000
y 0.000 -33.307 0.000
z 0.000 0.000 -41.569
Traceless
 xyz
x 4.131 0.000 0.000
y 0.000 4.131 0.000
z 0.000 0.000 -8.261
Polar
3z2-r2-16.522
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 8.139 0.000 0.000
y 0.000 8.139 0.000
z 0.000 0.000 15.261


<r2> (average value of r2) Å2
<r2> 126.052
(<r2>)1/2 11.227

State 2 (1Σ)

Jump to S1C1
Energy calculated at B2PLYP/3-21G*
 hartrees
Energy at 0K-4140.032793
Energy at 298.15K 
HF Energy-4139.976774
Nuclear repulsion energy213.578922
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/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 240 240 20.27 95294.27 0.34 0.51

Unscaled Zero Point Vibrational Energy (zpe) 119.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 119.9 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/3-21G*
B
0.07309

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.307
As2 0.000 0.000 1.228

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5347
As22.5347

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/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.112      
2 As -0.112      


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 -0.192 0.192
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.861 0.000 0.000
y 0.000 -29.583 0.000
z 0.000 0.000 -41.213
Traceless
 xyz
x -2.462 0.000 0.000
y 0.000 9.953 0.000
z 0.000 0.000 -7.491
Polar
3z2-r2-14.982
x2-y2-8.277
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.899 0.000 0.000
y 0.000 24.713 0.000
z 0.000 0.000 15.835


<r2> (average value of r2) Å2
<r2> 125.300
(<r2>)1/2 11.194