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All results from a given calculation for MgSO4 (Magnesium Sulfate)

using model chemistry: HF/6-31G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at HF/6-31G**
 hartrees
Energy at 0K-896.517711
Energy at 298.15K-896.521744
HF Energy-896.517711
Nuclear repulsion energy390.600951
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 HF/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 A1 1291 1165 350.11      
2 A1 931 840 239.51      
3 A1 819 739 124.17      
4 A1 643 580 9.73      
5 A1 431 389 75.74      
6 A2 416 376 0.00      
7 B1 1461 1318 369.98      
8 B1 629 568 76.36      
9 B1 121 109 47.85      
10 B2 932 841 494.68      
11 B2 703 635 7.15      
12 B2 502 453 0.26      

Unscaled Zero Point Vibrational Energy (zpe) 4439.2 cm-1
Scaled (by 0.9026) Zero Point Vibrational Energy (zpe) 4006.8 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 HF/6-31G**
ABC
0.18279 0.08345 0.08179

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -1.895
S2 0.000 0.000 0.578
O3 0.000 1.174 -0.461
O4 0.000 -1.174 -0.461
O5 -1.227 0.000 1.304
O6 1.227 0.000 1.304

Atom - Atom Distances (Å)
  Mg1 S2 O3 O4 O5 O6
Mg12.47301.85311.85313.42553.4255
S22.47301.56751.56751.42531.4253
O31.85311.56752.34742.44862.4486
O41.85311.56752.34742.44862.4486
O53.42551.42532.44862.44862.4539
O63.42551.42532.44862.44862.4539

picture of Magnesium Sulfate state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Mg1 O3 S2 92.217 Mg1 O4 S2 92.217
O3 Mg1 O4 78.598 O3 S2 O4 96.967
O3 S2 O5 109.712 O3 S2 O6 109.712
O4 S2 O5 109.712 O4 S2 O6 109.712
O5 S2 O6 118.822
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Mg 1.251      
2 S 1.856      
3 O -0.893      
4 O -0.893      
5 O -0.660      
6 O -0.660      


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 -14.252 14.252
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -46.588 0.000 0.000
y 0.000 -48.024 0.000
z 0.000 0.000 -16.880
Traceless
 xyz
x -14.136 0.000 0.000
y 0.000 -16.290 0.000
z 0.000 0.000 30.426
Polar
3z2-r260.853
x2-y21.436
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.316 0.000 0.000
y 0.000 3.720 0.000
z 0.000 0.000 5.641


<r2> (average value of r2) Å2
<r2> 148.352
(<r2>)1/2 12.180