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

using model chemistry: B1B95/3-21G*

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 B1B95/3-21G*
 hartrees
Energy at 0K-4141.503531
Energy at 298.15K 
HF Energy-4141.503531
Nuclear repulsion energy213.758741
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 B1B95/3-21G*
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 233 222 24.33 237.51 0.32 0.48

Unscaled Zero Point Vibrational Energy (zpe) 116.3 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 111.0 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 B1B95/3-21G*
B
0.07322

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.306
As2 0.000 0.000 1.227

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5325
As22.5325

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* 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 -0.764 0.764
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.004 0.000 0.000
y 0.000 -33.004 0.000
z 0.000 0.000 -40.817
Traceless
 xyz
x 3.906 0.000 0.000
y 0.000 3.906 0.000
z 0.000 0.000 -7.813
Polar
3z2-r2-15.625
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 8.319 0.000 0.000
y 0.000 8.319 0.000
z 0.000 0.000 15.210


<r2> (average value of r2) Å2
<r2> 124.758
(<r2>)1/2 11.170

State 2 (1Σ)

Jump to S1C1
Energy calculated at B1B95/3-21G*
 hartrees
Energy at 0K-4141.460656
Energy at 298.15K 
HF Energy-4141.460656
Nuclear repulsion energy214.436610
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 B1B95/3-21G*
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 240 229 22.82 33187.39 0.35 0.52

Unscaled Zero Point Vibrational Energy (zpe) 120.0 cm-1
Scaled (by 0.9549) Zero Point Vibrational Energy (zpe) 114.6 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 B1B95/3-21G*
B
0.07368

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/3-21G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.302
As2 0.000 0.000 1.223

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5245
As22.5245

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/3-21G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.121      
2 As -0.121      


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 -0.296 0.296
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -37.482 0.000 0.000
y 0.000 -29.288 0.000
z 0.000 0.000 -40.510
Traceless
 xyz
x -2.583 0.000 0.000
y 0.000 9.708 0.000
z 0.000 0.000 -7.125
Polar
3z2-r2-14.249
x2-y2-8.194
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.907 0.000 0.000
y 0.000 -6.016 0.000
z 0.000 0.000 15.599


<r2> (average value of r2) Å2
<r2> 124.206
(<r2>)1/2 11.145