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

using model chemistry: CCSD=FULL/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=FULL/cc-pV(T+d)Z
 hartrees
Energy at 0K-699.564041
Energy at 298.15K-699.569343
HF Energy-698.275434
Nuclear repulsion energy292.567673
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=FULL/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 3871 3871 50.17      
2 A 1286 1286 191.04      
3 A 1183 1183 74.56      
4 A 887 887 104.05      
5 A 574 574 53.78      
6 A 459 459 13.05      
7 A 395 395 1.40      
8 A 250 250 110.14      
9 B 3867 3867 225.95      
10 B 1540 1540 299.35      
11 B 1205 1205 96.53      
12 B 941 941 341.16      
13 B 584 584 42.97      
14 B 520 520 45.47      
15 B 345 345 58.33      

Unscaled Zero Point Vibrational Energy (zpe) 8952.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8952.5 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=FULL/cc-pV(T+d)Z
ABC
0.17378 0.16996 0.16386

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

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
S1 0.000 0.000 0.154
O2 0.000 1.244 0.816
O3 0.000 -1.244 0.816
O4 1.221 -0.038 -0.834
O5 -1.221 0.038 -0.834
H6 -1.440 -0.864 -1.085
H7 1.440 0.864 -1.085

Atom - Atom Distances (Å)
  S1 O2 O3 O4 O5 H6 H7
S11.40861.40861.57141.57142.08752.0875
O21.40862.48732.42022.38043.18292.4151
O31.40862.48732.38042.42022.41513.1829
O41.57142.42022.38042.44262.79730.9621
O51.57142.38042.42022.44260.96212.7973
H62.08753.18292.41512.79730.96213.3591
H72.08752.41513.18290.96212.79733.3591

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 108.566 S1 O5 H6 108.566
O2 S1 O3 123.987 O2 S1 O4 108.485
O2 S1 O5 105.898 O3 S1 O4 105.898
O3 S1 O5 108.485 O4 S1 O5 102.007
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability