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

using model chemistry: B3LYP/CEP-121G

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 B3LYP/CEP-121G
 hartrees
Energy at 0K-264.555071
Energy at 298.15K 
HF Energy-264.555071
Nuclear repulsion energy21.083846
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 B3LYP/CEP-121G
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 197 192 20.74 95.42 0.50 0.67

Unscaled Zero Point Vibrational Energy (zpe) 98.4 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 95.9 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 B3LYP/CEP-121G
B
0.06761

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.359
As2 0.000 0.000 1.277

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6354
As22.6354

picture of Gallium arsenide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.178      
2 As -0.178      


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 -2.219 2.219
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.349 0.000 0.000
y 0.000 -28.349 0.000
z 0.000 0.000 -36.999
Traceless
 xyz
x 4.325 0.000 0.000
y 0.000 4.325 0.000
z 0.000 0.000 -8.650
Polar
3z2-r2-17.299
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 6.148 0.000 0.000
y 0.000 6.148 0.000
z 0.000 0.000 17.025


<r2> (average value of r2) Å2
<r2> 66.431
(<r2>)1/2 8.151

State 2 (1Σ)

Jump to S1C1
Energy calculated at B3LYP/CEP-121G
 hartrees
Energy at 0K-264.514105
Energy at 298.15K 
HF Energy-264.514105
Nuclear repulsion energy21.181900
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 B3LYP/CEP-121G
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 205 199 21.90 14208.81 0.36 0.53

Unscaled Zero Point Vibrational Energy (zpe) 102.3 cm-1
Scaled (by 0.9745) Zero Point Vibrational Energy (zpe) 99.7 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 B3LYP/CEP-121G
B
0.06824

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/CEP-121G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.353
As2 0.000 0.000 1.271

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.6232
As22.6232

picture of Gallium arsenide state 2 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.149      
2 As -0.149      


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 -1.818 1.818
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.278 0.000 0.000
y 0.000 -33.406 0.000
z 0.000 0.000 -36.653
Traceless
 xyz
x 10.752 0.000 0.000
y 0.000 -2.940 0.000
z 0.000 0.000 -7.811
Polar
3z2-r2-15.623
x2-y29.128
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 14.168 0.000 0.000
y 0.000 4.249 0.000
z 0.000 0.000 17.416


<r2> (average value of r2) Å2
<r2> 66.131
(<r2>)1/2 8.132