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

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CBS-Q
 hartrees
Energy at 0K-898.035501
Energy at 298.15K-898.029407
HF Energy-896.497997
Nuclear repulsion energy390.063547
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 CBS-Q
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 1279 1279 366.36      
2 A1 930 930 249.15      
3 A1 815 815 121.54      
4 A1 646 646 8.30      
5 A1 433 433 76.72      
6 A2 423 423 0.00      
7 B1 1448 1448 402.77      
8 B1 635 635 84.23      
9 B1 126 126 49.24      
10 B2 920 920 502.51      
11 B2 702 702 8.30      
12 B2 500 500 0.10      

Unscaled Zero Point Vibrational Energy (zpe) 4428.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 4428.3 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 CBS-Q
ABC
0.17082 0.08049 0.07965

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -1.909
S2 0.000 0.000 0.584
O3 0.000 1.171 -0.459
O4 0.000 -1.171 -0.459
O5 -1.225 0.000 1.307
O6 1.225 0.000 1.307

Atom - Atom Distances (Å)
  Mg1 S2 O3 O4 O5 O6
Mg12.49341.86341.86343.44173.4417
S22.49341.56831.56831.42231.4223
O31.86341.56832.34122.44772.4477
O41.86341.56832.34122.44772.4477
O53.44171.42232.44772.44772.4495
O63.44171.42232.44772.44772.4495

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 92.797 Mg1 O4 S2 92.797
O3 Mg1 O4 77.838 O3 S2 O4 96.567
O3 S2 O5 109.773 O3 S2 O6 109.773
O4 S2 O5 109.773 O4 S2 O6 109.773
O5 S2 O6 118.889
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability