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

using model chemistry: CID/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 CID/3-21G*
 hartrees
Energy at 0K-892.523566
Energy at 298.15K-892.527523
HF Energy-891.991296
Nuclear repulsion energy386.686843
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 CID/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 1266 1178 305.78      
2 A1 876 815 263.84      
3 A1 816 759 100.60      
4 A1 627 584 3.19      
5 A1 423 393 57.47      
6 A2 408 380 0.00      
7 B1 1459 1358 273.30      
8 B1 593 552 70.56      
9 B1 126 117 44.68      
10 B2 865 805 407.03      
11 B2 694 646 0.13      
12 B2 499 465 4.85      

Unscaled Zero Point Vibrational Energy (zpe) 4325.8 cm-1
Scaled (by 0.9305) Zero Point Vibrational Energy (zpe) 4025.1 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 CID/3-21G*
ABC
0.17650 0.08261 0.08107

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -1.887
S2 0.000 0.000 0.586
O3 0.000 1.197 -0.477
O4 0.000 -1.197 -0.477
O5 -1.246 0.000 1.307
O6 1.246 0.000 1.307

Atom - Atom Distances (Å)
  Mg1 S2 O3 O4 O5 O6
Mg12.47251.84921.84923.42813.4281
S22.47251.60051.60051.43981.4398
O31.84921.60052.39362.48342.4834
O41.84921.60052.39362.48342.4834
O53.42811.43982.48342.48342.4926
O63.42811.43982.48342.48342.4926

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 91.276 Mg1 O4 S2 91.276
O3 Mg1 O4 80.658 O3 S2 O4 96.791
O3 S2 O5 109.419 O3 S2 O6 109.419
O4 S2 O5 109.419 O4 S2 O6 109.419
O5 S2 O6 119.903
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability