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All results from a given calculation for H2SO4 (Sulfuric acid)

using model chemistry: MP2/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-699.416558
Energy at 298.15K-699.421745
HF Energy-698.279299
Nuclear repulsion energy290.021135
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/Def2TZVPP
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3799 3615 60.65      
2 A 1253 1192 176.07      
3 A 1162 1106 70.22      
4 A 848 807 115.08      
5 A 550 523 47.74      
6 A 446 425 15.40      
7 A 385 366 3.03      
8 A 251 238 99.18      
9 B 3794 3610 222.15      
10 B 1508 1435 278.61      
11 B 1179 1122 94.83      
12 B 900 856 341.64      
13 B 561 534 31.71      
14 B 503 478 44.06      
15 B 336 319 59.94      

Unscaled Zero Point Vibrational Energy (zpe) 8736.8 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 8313.1 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 MP2/Def2TZVPP
ABC
0.16991 0.16785 0.16096

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.154
O2 0.000 1.252 0.818
O3 0.000 -1.252 0.818
O4 1.226 0.048 -0.839
O5 -1.226 -0.048 -0.839
H6 1.470 -0.857 -1.072
H7 -1.470 0.857 -1.072

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.41761.41761.57861.57862.09742.0974
O21.41762.50472.38782.43713.19112.4275
O31.41762.50472.43712.38782.42753.1911
O41.57862.38782.43712.45420.96512.8247
O51.57862.43712.38782.45422.82470.9651
H62.09743.19112.42750.96512.82473.4028
H72.09742.42753.19112.82470.96513.4028

picture of Sulfuric acid state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
S1 O4 H7 47.093 S1 O5 H6 47.093
O2 S1 O3 124.126 O2 S1 O4 105.553
O2 S1 O5 108.743 O3 S1 O4 108.743
O3 S1 O5 105.553 O4 S1 O5 102.036
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability