Take a look at this week’s HOT article, which is free to access for a limited time: 
Oxidation of gas-phase hydrated protonated/deprotonated cysteine: how many water ligands are sufficient to approach solution-phase photooxidation chemistry?
Fangwei Liu, Rifat Emre, Wenchao Lu and Jianbo Liu
DOI: 10.1039/C3CP53736F, Paper
