Enhanced Electrochemiluminescence from a Stoichiometric Ruthenium(II)-Iridium(III) Complex Soft Salt

Chemistry : a European Journal
Kalen N SwanickEli Zysman-Colman

Abstract

Electrochemiluminescence (ECL) and electrochemistry are reported for a heterometallic soft salt, [Ru(dtbubpy)3 ][Ir(ppy)2 (CN)2 ]2 ([Ir][Ru][Ir]), consisting of a 2:1 ratio of complementary charged Ru and Ir complexes possessing two different emission colors. The [Ru](2+) and [Ir](-) moieties in the [Ir][Ru][Ir] greatly reduce the energy required to produce ECL. Though ECL intensity in the annihilation path was enhanced 18× relative to that of [Ru(bpy)3 ](2+) , ECL in the co-reactant path with tri-n-propylamine was enhanced a further 4×. Spooling spectroscopy gives insight into ECL mechanisms: the unique light emission at 634 nm is due to the [Ru](2+) * excited state and no [Ir](-) * was generated in either route. Overall, the soft salt system is anticipated to be attractive and suitable for the development of efficient and low-energy-cost ECL detection systems.

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Citations

Aug 27, 2015·Journal of the American Chemical Society·Mahdi HesariZhifeng Ding
Jun 4, 2016·Analytical and Bioanalytical Chemistry·Andrzej Kapturkiewicz
Dec 14, 2016·Analytical Chemistry·Lingling LiJun-Jie Zhu
Dec 21, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Yuyang ZhouXiaomei Wang
Feb 4, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Valentina FioriniStefano Stagni
Aug 2, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Valentina FioriniStefano Stagni
Jul 21, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Baptiste Laramée-Milette, Garry S Hanan
Jul 5, 2018·Physical Chemistry Chemical Physics : PCCP·Lachlan C SoulsbyPaul S Francis
Aug 7, 2018·Chemical Communications : Chem Comm·Ruizhong ZhangHong-Bo Wang
Feb 16, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Noviyan DarmawanLuisa De Cola
May 1, 2018·Chemical Communications : Chem Comm·Sergej KudrukFabio Rizzo
Nov 2, 2018·Journal of the American Chemical Society·Weiliang GuoYuanhua Shao

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