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

using model chemistry: MP3=FULL/3-21G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP3=FULL/3-21G*
 hartrees
Energy at 0K-892.617159
Energy at 298.15K-892.621023
HF Energy-891.989131
Nuclear repulsion energy384.933527
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 MP3=FULL/3-21G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 1238 1238 281.06      
2 A1 835 835 292.33      
3 A1 804 804 61.04      
4 A1 611 611 4.71      
5 A1 413 413 53.37      
6 A2 395 395 0.00      
7 B1 1432 1432 250.44      
8 B1 573 573 62.10      
9 B1 122 122 43.36      
10 B2 831 831 367.06      
11 B2 676 676 7.31      
12 B2 491 491 5.19      

Unscaled Zero Point Vibrational Energy (zpe) 4210.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4210.7 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 MP3=FULL/3-21G*
ABC
0.17366 0.08214 0.08084

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/3-21G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -1.884
S2 0.000 0.000 0.587
O3 0.000 1.211 -0.482
O4 0.000 -1.211 -0.482
O5 -1.252 0.000 1.308
O6 1.252 0.000 1.308

Atom - Atom Distances (Å)
  Mg1 S2 O3 O4 O5 O6
Mg12.47091.85271.85273.42963.4296
S22.47091.61471.61471.44561.4456
O31.85271.61472.42142.49792.4979
O41.85271.61472.42142.49792.4979
O53.42961.44562.49792.49792.5049
O63.42961.44562.49792.49792.5049

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 90.624 Mg1 O4 S2 90.624
O3 Mg1 O4 81.608 O3 S2 O4 97.144
O3 S2 O5 109.293 O3 S2 O6 109.293
O4 S2 O5 109.293 O4 S2 O6 109.293
O5 S2 O6 120.090
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability