A photoluminescent Au(i)/Ag(i)/PNN coordination complex for relatively rapid and reversible alcohol sensing. Issue 20 (7th May 2021)

• Record Type: Journal Article
• Authors: Tao, Yanhui; Wang, Yuwei; Hu, Shengnan; Young, David James; Lu, Chengrong; Li, Hong-Xi; Ren, Zhi-Gang
• Is Part Of: Dalton transactions. Volume 50:Issue 20(2021)
• Page Start: 6773
• Page End: 6777
• Publication Date: 2021-05-07
• Subjects: Chemistry, Inorganic -- Periodicals; Chemistry, Physical and theoretical -- Periodicals; Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/d1dt00931a
• Languages: English
• ISSNs: 1477-9226

Abstract

Abstract : A Au/Ag/PNN complex exhibits visible, relatively rapid and recyclable PL on/off switching when exposed to low molecular weight alcohols and H2 O/N2, respectively. Abstract : Trinuclear complex [Au2 Ag(dppmaphen)2 (CN)2 ]PF6 photoluminesces on exposure to low molecular weight alcohols. This emission is likely due to C–H⋯π interactions between the analyte and –PPh2 group, that inhibits non-radiative relaxation of the photoexcited state. Photoluminescene was quenched by removing the analyte under a stream of N2 or replacing it with H2 O. This on/off switching was clearly visible, relatively rapid and recyclable.