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

using model chemistry: ROHF/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 ROHF/6-31G**
 hartrees
Energy at 0K-4153.211613
Energy at 298.15K 
HF Energy-4153.211613
Nuclear repulsion energy215.024376
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/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 226 194 32.22      

Unscaled Zero Point Vibrational Energy (zpe) 113.2 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 96.7 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/6-31G**
B
0.07409

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.298
As2 0.000 0.000 1.219

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5176
As22.5176

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/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.189      
2 As -0.189      


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 -1.042 1.042
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.338 0.000 0.000
y 0.000 -33.338 0.000
z 0.000 0.000 -43.513
Traceless
 xyz
x 5.087 0.000 0.000
y 0.000 5.087 0.000
z 0.000 0.000 -10.174
Polar
3z2-r2-20.348
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> 124.255
(<r2>)1/2 11.147

State 2 (1Σ)

Jump to S1C1
Energy calculated at ROHF/6-31G**
 hartrees
Energy at 0K-4153.152998
Energy at 298.15K 
HF Energy-4153.152998
Nuclear repulsion energy216.224247
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/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 237 202 34.93      

Unscaled Zero Point Vibrational Energy (zpe) 118.4 cm-1
Scaled (by 0.8546) Zero Point Vibrational Energy (zpe) 101.2 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/6-31G**
B
0.07491

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.291
As2 0.000 0.000 1.213

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5036
As22.5036

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/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.134      
2 As -0.134      


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 -0.615 0.615
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -29.359 0.000 0.000
y 0.000 -38.068 0.000
z 0.000 0.000 -43.142
Traceless
 xyz
x 11.246 0.000 0.000
y 0.000 -1.817 0.000
z 0.000 0.000 -9.429
Polar
3z2-r2-18.857
x2-y28.709
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> 123.213
(<r2>)1/2 11.100