Issue 35, 2012
From the journal:

Dalton Transactions

Synthesis, structure, photophysics and electrochemiluminescence of Re(i) tricarbonyl complexes with cationic 2,2-bipyridyl ligands†

Mei-Jin Li,*ab   Xing Liu,a   Yun-Qin Shi,a   Rui-Jia Xie,a   Qiao-Hua Weiac  and  Guo-Nan Chena  

* Corresponding authors

a Key Laboratory of Analysis and Detection Technology for Food Safety (Ministry of Education and Fujian Province), Department of Chemistry, Fuzhou University, Fuzhou 350108, P. R. China
E-mail: mjli@fzu.edu.cn

b State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, P.R. China

c Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, The Chinese Academy of Sciences, Beijing 100039, China

Abstract

Two water soluble Re(I) tricarbonyl diimine complexes containing cationic 2,2′-bipyridyl ligands [Re(L1)(CO)3(AN)]2+ (1) and [Re(L2)(CO)3(AN)]3+ (2) (L1 and L2: a cationic 2,2′-bipyridyl ligand, AN: acetonitrile) were synthesized and characterized. Their photophysical, electrochemical and electrochemiluminescent properties were investigated. The crystal structures of the two complexes have also been determined. Electrochemiluminescence (ECL) of the two complexes 1 and 2 have been studied in aqueous buffer solution in the presence of co-reactant tri-n-propylamine (TPrA) or 2-(dibutylamino)ethanol (DBAE) at a Au working electrode. The ECL behavior of the complexes was also studied in the presence of several surfactants such as Triton X-100 and Zonyl FSN. The ECL signals of the rhenium(I) complex were enhanced about 190-fold and 70-fold at a Au electrode in the presence of Triton X-100 for the [Re(L1)(CO)3(AN)]2+/TPrA and [Re(L1)(CO)3(AN)]2+/DBAE systems, respectively.

Graphical abstract: Synthesis, structure, photophysics and electrochemiluminescence of Re(i) tricarbonyl complexes with cationic 2,2-bipyridyl ligands

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Article information

DOI
https://doi.org/10.1039/C2DT30074E
Article type
Paper
Submitted
11 Jan 2012
Accepted
05 Jul 2012
First published
10 Jul 2012

Dalton Trans., 2012,41, 10612-10618

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Synthesis, structure, photophysics and electrochemiluminescence of Re(I) tricarbonyl complexes with cationic 2,2-bipyridyl ligands

M. Li, X. Liu, Y. Shi, R. Xie, Q. Wei and G. Chen, Dalton Trans., 2012, 41, 10612 DOI: 10.1039/C2DT30074E

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