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

using model chemistry: MP2=FULL/TZVP

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=FULL/TZVP
 hartrees
Energy at 0K-699.226502
Energy at 298.15K-699.231543
HF Energy-698.167269
Nuclear repulsion energy284.484619
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=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 A 3793 3613 65.54      
2 A 1201 1144 176.04      
3 A 1152 1097 76.63      
4 A 798 760 134.65      
5 A 516 492 65.67      
6 A 425 404 18.59      
7 A 372 354 6.28      
8 A 252 240 80.37      
9 B 3789 3609 187.97      
10 B 1463 1394 292.81      
11 B 1163 1108 96.05      
12 B 848 808 347.12      
13 B 530 505 26.63      
14 B 480 457 51.86      
15 B 316 301 77.84      

Unscaled Zero Point Vibrational Energy (zpe) 8547.5 cm-1
Scaled (by 0.9527) Zero Point Vibrational Energy (zpe) 8143.2 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=FULL/TZVP
ABC
0.16300 0.16174 0.15472

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.171
O2 0.000 1.286 0.833
O3 0.000 -1.286 0.833
O4 1.257 0.050 -0.858
O5 -1.257 -0.050 -0.858
H6 1.408 -0.856 -1.169
H7 -1.408 0.856 -1.169

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.44601.44601.62481.62482.12392.1239
O21.44602.57132.44182.49443.25232.4847
O31.44602.57132.49442.44182.48473.2523
O41.62482.44182.49442.51550.97062.8009
O51.62482.49442.44182.51552.80090.9706
H62.12393.25232.48470.97062.80093.2951
H72.12392.48473.25232.80090.97063.2951

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 48.978 S1 O5 H6 48.978
O2 S1 O3 125.532 O2 S1 O4 105.194
O2 S1 O5 108.501 O3 S1 O4 108.501
O3 S1 O5 105.194 O4 S1 O5 101.447
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability