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

using model chemistry: ROHF/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 ROHF/3-21G
 hartrees
Energy at 0K-4137.286937
Energy at 298.15K 
HF Energy-4137.286937
Nuclear repulsion energy203.056997
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 ROHF/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 202 184 23.45      

Unscaled Zero Point Vibrational Energy (zpe) 101.1 cm-1
Scaled (by 0.907) Zero Point Vibrational Energy (zpe) 91.7 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 ROHF/3-21G
B
0.06607

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.375
As2 0.000 0.000 1.291

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6660
As22.6660

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.383      
2 As -0.383      


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 -2.252 2.252
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.684 0.000 0.000
y 0.000 -33.684 0.000
z 0.000 0.000 -46.171
Traceless
 xyz
x 6.244 0.000 0.000
y 0.000 6.244 0.000
z 0.000 0.000 -12.487
Polar
3z2-r2-24.974
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 0.000 0.000 0.000
y 0.000 0.000 0.000
z 0.000 0.000 0.000


<r2> (average value of r2) Å2
<r2> 137.247
(<r2>)1/2 11.715

State 2 (1Σ)

Jump to S1C1
Energy calculated at ROHF/3-21G
 hartrees
Energy at 0K-4137.227993
Energy at 298.15K 
HF Energy-4137.227993
Nuclear repulsion energy205.069149
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 ROHF/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 213 193 28.78      

Unscaled Zero Point Vibrational Energy (zpe) 106.3 cm-1
Scaled (by 0.907) Zero Point Vibrational Energy (zpe) 96.4 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 ROHF/3-21G
B
0.06738

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.361
As2 0.000 0.000 1.279

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6398
As22.6398

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROHF/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.336      
2 As -0.336      


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 -1.743 1.743
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -38.643 0.000 0.000
y 0.000 -29.619 0.000
z 0.000 0.000 -45.807
Traceless
 xyz
x -0.930 0.000 0.000
y 0.000 12.606 0.000
z 0.000 0.000 -11.676
Polar
3z2-r2-23.352
x2-y2-9.024
xy0.000
xz0.000
yz0.000


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


<r2> (average value of r2) Å2
<r2> 135.139
(<r2>)1/2 11.625