Aggregation-Induced Electrochemiluminescence of Platinum(II) Complexes

Serena Carrara; Alessandro Aliprandi; Conor F Hogan; Luisa De Cola

doi:10.1021/jacs.7b07710

Aggregation-Induced Electrochemiluminescence of Platinum(II) Complexes

J Am Chem Soc. 2017 Oct 18;139(41):14605-14610. doi: 10.1021/jacs.7b07710. Epub 2017 Oct 3.

Authors

Serena Carrara¹, Alessandro Aliprandi¹, Conor F Hogan², Luisa De Cola^{1

3}

Affiliations

¹ ISIS & icFRC, Universitè de Strasbourg & CNRS , 8 Allée Gaspard Monge, 67000, Strasbourg, France.
² Departiment of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia.
³ Institute of Nanotechnology, Karlsruhe Institute of Technology , KIT Campus North, Hermann-von-Helmholtz-Platz 1, Eggenstein-Leopoldshafen, 76344, Germany.

PMID: 28914532
DOI: 10.1021/jacs.7b07710

Abstract

We report the electrochemiluminescence properties of square-planar Pt(II) complexes that result from the formation of supramolecular nanostructures. We define this new phenomenon as aggregation-induced electrochemiluminescence (AIECL). In this system, self-assembly changes the HOMO and LUMO energies, making their population accessible via ECL pathways and leading to the generation of the luminescent excited state. Significantly, the emission from the self-assembled system is the first example of electrochemiluminescence (ECL) of Pt(II) complexes in aqueous solution having higher efficiency than the standard, Ru(bpy)₃²⁺.The finding can lead to a new generation of bright emitters that can be used as ECL labels.

Publication types

Research Support, Non-U.S. Gov't