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

using model chemistry: MP2/cc-pCVTZ

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/cc-pCVTZ
 hartrees
Energy at 0K-699.412403
Energy at 298.15K-699.417623
HF Energy-698.269814
Nuclear repulsion energy290.054416
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/cc-pCVTZ
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 3621 57.66      
2 A 1260 1201 170.90      
3 A 1163 1108 68.78      
4 A 848 808 113.90      
5 A 551 526 46.23      
6 A 448 427 15.95      
7 A 384 366 2.59      
8 A 252 240 100.80      
9 B 3794 3617 223.15      
10 B 1518 1447 263.54      
11 B 1180 1125 93.32      
12 B 902 860 337.17      
13 B 562 535 31.26      
14 B 503 480 44.37      
15 B 338 322 58.10      

Unscaled Zero Point Vibrational Energy (zpe) 8750.3 cm-1
Scaled (by 0.9532) Zero Point Vibrational Energy (zpe) 8340.8 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/cc-pCVTZ
ABC
0.17013 0.16783 0.16091

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.158
O2 0.000 1.256 0.821
O3 0.000 -1.256 0.821
O4 1.232 -0.048 -0.840
O5 -1.232 0.048 -0.840
H6 -1.429 -0.861 -1.109
H7 1.429 0.861 -1.109

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.42071.42071.58661.58662.09502.0950
O21.42072.51292.44532.39593.20202.4337
O31.42072.51292.39592.44532.43373.2020
O41.58662.44532.39592.46632.79590.9681
O51.58662.39592.44532.46630.96812.7959
H62.09503.20202.43372.79590.96813.3373
H72.09502.43373.20200.96812.79593.3373

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 107.715 S1 O5 H6 107.715
O2 S1 O3 124.350 O2 S1 O4 108.676
O2 S1 O5 105.496 O3 S1 O4 105.496
O3 S1 O5 108.676 O4 S1 O5 102.018
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability