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Issue 11, 2017
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Assembly of strongly phosphorescent hetero-bimetallic and -trimetallic [2]catenane structures based on a coinage metal alkynyl system

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Abstract

Homo-metallic metal alkynyl complexes exhibit interesting catenane structures, but their hetero-metallic catenane counterparts are under-developed. In this work, we report rare examples of bimetallic Au–Cu (DtbpC[triple bond, length as m-dash]C ligand; Dtbp = 3,5-di-tert-butylphenyl), Au–Ag (tBuC[triple bond, length as m-dash]C ligand), and Au–Cu, Au–Ag (C6-FluoC[triple bond, length as m-dash]C ligand; C6-Fluo = 9,9-dihexyl-9H-fluoren-2-yl) complexes as well as a trimetallic Au–Ag–Cu (C6-FluoC[triple bond, length as m-dash]C ligand) complex, which feature [2]catenane structures. The formation of the [2]catenane structure is significantly affected by the coinage metal ion(s) and change of the structure of the alkynyl ligand. These hetero-metallic [2]catenane structures are strongly luminescent with tunable emission λmax from 503 to 595 nm and Φ values up to 0.83.

Graphical abstract: Assembly of strongly phosphorescent hetero-bimetallic and -trimetallic [2]catenane structures based on a coinage metal alkynyl system

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Supplementary files

Article information


Submitted
12 Aug 2017
Accepted
16 Sep 2017
First published
04 Oct 2017

This article is Open Access
All publication charges for this article have been paid for by the Royal Society of Chemistry

Chem. Sci., 2017,8, 7815-7820
Article type
Edge Article

Assembly of strongly phosphorescent hetero-bimetallic and -trimetallic [2]catenane structures based on a coinage metal alkynyl system

X. Chang, G. Xu, B. Cao, J. Wang, J. Huang and C. Che, Chem. Sci., 2017, 8, 7815
DOI: 10.1039/C7SC03529B

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