return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: ROHF/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-4157.526256
Energy at 298.15K 
HF Energy-4157.526256
Nuclear repulsion energy209.614939
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/daug-cc-pVTZ
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 216 216 34.61      

Unscaled Zero Point Vibrational Energy (zpe) 108.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 108.0 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 ROHF/daug-cc-pVTZ
B
0.07040

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/daug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ga1 0.000 0.000 -1.332
As2 0.000 0.000 1.251

Atom - Atom Distances (Å)
  Ga1 As2
Ga12.5826
As22.5826

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/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ga 0.204      
2 As -0.204      


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 -1.592 1.592
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.749 0.000 0.000
y 0.000 -33.749 0.000
z 0.000 0.000 -43.042
Traceless
 xyz
x 4.646 0.000 0.000
y 0.000 4.646 0.000
z 0.000 0.000 -9.293
Polar
3z2-r2-18.585
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> 129.625
(<r2>)1/2 11.385

State 2 (1Σ)

Jump to S1C1
Energy calculated at ROHF/daug-cc-pVTZ
 hartrees
Energy at 0K-4157.470058
Energy at 298.15K 
HF Energy-4157.470058
Nuclear repulsion energy210.459709
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/daug-cc-pVTZ
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 222 222 39.25      

Unscaled Zero Point Vibrational Energy (zpe) 111.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 111.2 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/daug-cc-pVTZ
B
0.07097

See section I.F.4 to change rotational constant units
Geometric Data calculated at ROHF/daug-cc-pVTZ An error occurred on the server when processing the URL. Please contact the system administrator.

If you are the system administrator please click here to find out more about this error.