The S 2p XPS spectra can provide information about the chemical bonding and electronic structure of sulfur-containing compounds. However, it's important to note that the exact position of the S 2p peak can vary depending on factors such as the oxidation state, coordination environment, and chemical environment of the sulfur atom.

Assuming you are referring to the S 2p XPS peak with a binding energy of 158.56 eV, this could potentially correspond to several different sulfur-containing compounds. Without additional information, it's difficult to identify the specific compound responsible for this peak.

In general, S 2p peaks in the range of 158-162 eV can be associated with sulfur atoms in compounds such as sulfonates, sulfates, sulfites, and sulfoxides. However, other factors such as the presence of neighboring atoms and the nature of the chemical environment can also influence the exact position of the peak.

First, can people stop replying with AI generated answers on these threads?

In answer to the question, your value for the S2p binding enegy is lower than most sulfides, so how is your data calibrated?

David J. Morgan, thanks Dr for your answering

I just have xps for sulfur and research for their bonds according to their BE, except this I didn't know what the bond of this BE 158.56eV.

If you omly have the S2p spectrum then the data is worthless as you have no other points of reference for the data. The data needs to be calibrated to, for example, the C1s peak to be able to comment on the S2p data binding energy