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

using model chemistry: MP2/SDD

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at MP2/SDD
 hartrees
Energy at 0K-896.848180
Energy at 298.15K-896.850854
HF Energy-896.213299
Nuclear repulsion energy351.845683
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 MP2/SDD
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 980 946 187.18      
2 A1 643 620 147.42      
3 A1 573 553 179.44      
4 A1 435 420 75.82      
5 A1 317 306 39.84      
6 A2 256 247 0.00      
7 B1 1086 1049 238.32      
8 B1 412 398 61.23      
9 B1 110 107 45.32      
10 B2 611 590 179.16      
11 B2 439 424 152.68      
12 B2 339 327 4.90      

Unscaled Zero Point Vibrational Energy (zpe) 3100.5 cm-1
Scaled (by 0.9653) Zero Point Vibrational Energy (zpe) 2992.9 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 MP2/SDD
ABC
0.14759 0.06851 0.06704

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/SDD

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -2.026
S2 0.000 0.000 0.666
O3 0.000 1.304 -0.599
O4 0.000 -1.304 -0.599
O5 -1.367 0.000 1.453
O6 1.367 0.000 1.453

Atom - Atom Distances (Å)
  Mg1 S2 O3 O4 O5 O6
Mg12.69211.93311.93313.73793.7379
S22.69211.81701.81701.57751.5775
O31.93311.81702.60842.78942.7894
O41.93311.81702.60842.78942.7894
O53.73791.57752.78942.78942.7347
O63.73791.57752.78942.78942.7347

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 91.702 Mg1 O4 S2 91.702
O3 Mg1 O4 84.854 O3 S2 O4 91.742
O3 S2 O5 110.320 O3 S2 O6 110.320
O4 S2 O5 110.320 O4 S2 O6 110.320
O5 S2 O6 120.167
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability