Organic Sulphur

Table 1. S 2p3/2 binding energies for organic sulphur compounds [1,2,3,4,5].  Note data from [2] has been corrected to C-C/C-H set to 284.8 eV (original work is corrected to 285.0 eV).

There is a lot of confusion in the literature when presenting the data for sulphur. Some papers mention S 2p when they really mean S 2p3/2, these are not interchangeable! Please remember to be specific about the exact peak you are referring to.  

Other Notes:

S 2p3/2 - S 2p1/2 splitting is 1.18 eV.

For thiol compounds attached to Au nanoparticles:

Au-S-C S 2p3/2 was found at 162.6 eV [3], 162.9 eV [4] and 162.8 eV [5]. 

References:
[1] C.D. Wagner, A.V. Naumkin, A. Kraut-Vass, J.W. Allison, C.J. Powell, J.R.Jr. Rumble, NIST Standard Reference Database 20, Version 3.4 (web version) (http:/srdata.nist.gov/xps/) 2003.

[2] G. Beamson, D. Briggs, High Resolution XPS of Organic Polymers - The Scienta ESCA300 Database Wiley Interscience, 1992.

[3] P. Gobbo, M.C.Biesinger, M.S. Workentin, Facile Synthesis of Gold Nanoparticle (AuNP)- CarbonNanotubes (CNT) Hybrids through an Interfacial Michael Addition Reaction, Chemical Communications, 49 (2013) 2831-2833.

[4] P. Gobbo, S.Novoa, M.C. Biesinger, M.S. Workentin, Interfacial Strain-Promoted Alkyne-Azide Cycloaddition (I-SPAAC) for the Synthesis of Nanomaterial Hybrids, Chemical Communications, 49 (2013) 3982-3984.

[5] P. Gobbo, Z.Mossman, A. Nazemi, A. Niaux, M.C. Biesinger, E.R. Gilles, M.S. Workentin,Versatile Stained Alkyne Modified Water-Soluble AuNPs for Interfacial Strain Promoted Azide-Alkyne Cycloaddition (ISPAAC), Journal of Materials Chemistry B, 2 (2014) 1764-1769.