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

using model chemistry: CCSD/cc-pV(T+d)Z

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at CCSD/cc-pV(T+d)Z
 hartrees
Energy at 0K-699.409537
Energy at 298.15K-699.414823
HF Energy-698.274434
Nuclear repulsion energy291.770705
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 CCSD/cc-pV(T+d)Z
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 3853 3853 50.68      
2 A 1279 1279 187.13      
3 A 1191 1191 75.58      
4 A 882 882 103.59      
5 A 570 570 53.97      
6 A 455 455 13.66      
7 A 392 392 1.65      
8 A 253 253 107.47      
9 B 3848 3848 221.96      
10 B 1533 1533 297.02      
11 B 1209 1209 96.04      
12 B 937 937 337.39      
13 B 580 580 41.24      
14 B 516 516 44.18      
15 B 340 340 60.21      

Unscaled Zero Point Vibrational Energy (zpe) 8918.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8918.4 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 CCSD/cc-pV(T+d)Z
ABC
0.17275 0.16914 0.16291

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/cc-pV(T+d)Z

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.155
O2 0.000 1.247 0.818
O3 0.000 -1.247 0.818
O4 1.225 -0.040 -0.836
O5 -1.225 0.040 -0.836
H6 -1.441 -0.864 -1.092
H7 1.441 0.864 -1.092

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.41251.41251.57591.57592.09192.0919
O21.41252.49412.42742.38613.19042.4229
O31.41252.49412.38612.42742.42293.1904
O41.57592.42742.38612.45092.80200.9637
O51.57592.38612.42742.45090.96372.8020
H62.09193.19042.42292.80200.96373.3604
H72.09192.42293.19040.96372.80203.3604

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 108.510 S1 O5 H6 108.510
O2 S1 O3 123.979 O2 S1 O4 108.519
O2 S1 O5 105.838 O3 S1 O4 105.838
O3 S1 O5 108.519 O4 S1 O5 102.089
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability