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

using model chemistry: MP3=FULL/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at MP3=FULL/6-31G*
 hartrees
Energy at 0K-698.912932
Energy at 298.15K-698.918054
HF Energy-698.034950
Nuclear repulsion energy287.141935
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/6-31G*
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 3775 3542 50.99      
2 A 1259 1181 193.62      
3 A 1228 1152 104.94      
4 A 853 801 114.11      
5 A 553 519 70.93      
6 A 440 413 24.48      
7 A 369 346 3.95      
8 A 244 229 114.49      
9 B 3771 3538 223.07      
10 B 1521 1428 331.22      
11 B 1242 1166 115.70      
12 B 917 861 355.45      
13 B 553 518 45.47      
14 B 496 465 53.87      
15 B 324 304 74.96      

Unscaled Zero Point Vibrational Energy (zpe) 8772.4 cm-1
Scaled (by 0.9383) Zero Point Vibrational Energy (zpe) 8231.1 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 MP3=FULL/6-31G*
ABC
0.16741 0.16364 0.15770

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G*

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.158
O2 0.000 1.262 0.824
O3 0.000 -1.262 0.824
O4 1.237 0.036 -0.845
O5 -1.237 -0.036 -0.845
H6 1.492 -0.871 -1.090
H7 -1.492 0.871 -1.090

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.42661.42661.59291.59292.13122.1312
O21.42662.52312.41222.44933.23052.4582
O31.42662.52312.44932.41222.45823.2305
O41.59292.41222.44932.47440.97302.8643
O51.59292.44932.41222.47442.86430.9730
H62.13123.23052.45820.97302.86433.4555
H72.13122.45823.23052.86430.97303.4555

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 47.204 S1 O5 H6 47.204
O2 S1 O3 124.335 O2 S1 O4 105.916
O2 S1 O5 108.295 O3 S1 O4 108.295
O3 S1 O5 105.916 O4 S1 O5 101.920
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability