return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: MP3=FULL/TZVP

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/TZVP
 hartrees
Energy at 0K-897.730807
Energy at 298.15K-897.734547
HF Energy-896.629062
Nuclear repulsion energy384.303034
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/TZVP
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 1207 1127 300.92      
2 A1 846 790 267.50      
3 A1 749 700 79.23      
4 A1 583 544 9.50      
5 A1 389 363 69.92      
6 A2 376 351 0.00      
7 B1 1378 1287 356.51      
8 B1 571 533 71.92      
9 B1 111 103 50.23      
10 B2 820 765 443.16      
11 B2 642 599 2.05      
12 B2 461 430 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 4065.9 cm-1
Scaled (by 0.9337) Zero Point Vibrational Energy (zpe) 3796.3 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 MP3=FULL/TZVP
ABC
0.17631 0.08106 0.07932

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Mg1 0.000 0.000 -1.918
S2 0.000 0.000 0.593
O3 0.000 1.193 -0.474
O4 0.000 -1.193 -0.474
O5 -1.251 0.000 1.320
O6 1.251 0.000 1.320

Atom - Atom Distances (Å)
  Mg1 S2 O3 O4 O5 O6
Mg12.51071.87291.87293.47173.4717
S22.51071.60061.60061.44741.4474
O31.87291.60062.38622.49202.4920
O41.87291.60062.38622.49202.4920
O53.47171.44742.49202.49202.5023
O63.47171.44742.49202.49202.5023

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 92.235 Mg1 O4 S2 92.235
O3 Mg1 O4 79.140 O3 S2 O4 96.390
O3 S2 O5 109.583 O3 S2 O6 109.583
O4 S2 O5 109.583 O4 S2 O6 109.583
O5 S2 O6 119.628
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability