A new strategy for effective distance regulation of the surface plasmon assisted coupling reaction of p-nitrothiophenol to p,p'-dimercaptoazobenzene.

Plasmon assisted reactions on a metal surface occur through a different mechanism compared to traditional reaction conditions. Based on a SERS study of the model plasmon assisted reaction of PNTP to DMAB, we present the first regulation strategy for these reactions, enabled here, through the controlled adjustment of acidic properties.