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]. 

[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:/ 2003.
[2] G. Beamson, D. Briggs, High Resolution XPS of Organic Polymers - The Scienta ESCA300 Database Wiley Interscience, 1992.