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

using model chemistry: ROMP2/6-31G

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 ROMP2/6-31G
 hartrees
Energy at 0K-4153.009249
Energy at 298.15K 
HF Energy-4152.960627
Nuclear repulsion energy208.031809
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 ROMP2/6-31G
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 200 200        

Unscaled Zero Point Vibrational Energy (zpe) 99.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 99.8 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 ROMP2/6-31G
B
0.06935

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.342
As2 0.000 0.000 1.260

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6022
As22.6022

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.381      
2 As -0.381      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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> 131.812
(<r2>)1/2 11.481

State 2 (1Σ)

Jump to S1C1
Energy calculated at ROMP2/6-31G
 hartrees
Energy at 0K-4152.959535
Energy at 298.15K 
HF Energy-4152.901747
Nuclear repulsion energy209.293999
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 ROMP2/6-31G
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 210 210        

Unscaled Zero Point Vibrational Energy (zpe) 104.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 104.8 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 ROMP2/6-31G
B
0.07019

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROMP2/6-31G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.334
As2 0.000 0.000 1.253

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5866
As22.5866

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at ROMP2/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.337      
2 As -0.337      


Electric dipole moments


Electric Quadrupole moment
Quadrupole components in D Å


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> 130.604
(<r2>)1/2 11.428