Issue 3, 2019

Chemoselective mechanochemical route toward a bright TADF-emitting CuI-based coordination polymer

Abstract

An efficient and chemoselective mechanochemical synthesis of a bright TADF-emitting CuI-based compound is reported. The reaction of 2-(ethylsulfanyl)-6-methylpyridine (L) with CuI under solvent-free conditions or in solution results in a non-emissive complex, [Cu2I2L2] (1) or a 1-D coordination polymer (CP), [Cu3I3L2]n (CP 2), respectively. Meanwhile, the simple manual grinding of the reactants in the presence of a few drops of MeCN for 1–2 min chemoselectively gives the structurally different 1-D CP, [Cu3I3L2]n (CP 3), as a single product isolated in 87% yield. Remarkably, both complex 1 and CP 2 under the mechanochemical conditions easily (1–2 min) undergo polymerization or isomerisation, accordingly, to afford CP 3. The structure of the latter is formed by cuprophilic interaction-free (–Cu–I–)n chains ligated by 2-(ethylsulfanyl)-6-methylpyridines in a μ2-N,S manner. At room temperature, CP 1 exhibits highly efficient blue-green TADF with a short lifetime (4.0 μs) and a high photoluminescence performance (PLQY being 70%).

Graphical abstract: Chemoselective mechanochemical route toward a bright TADF-emitting CuI-based coordination polymer

Supplementary files

Article information

Article type
Research Article
Submitted
04 Dec 2018
Accepted
21 Jan 2019
First published
22 Jan 2019

Inorg. Chem. Front., 2019,6, 671-679

Chemoselective mechanochemical route toward a bright TADF-emitting CuI-based coordination polymer

A. V. Artem'ev, E. P. Doronina, M. I. Rakhmanova, O. A. Tarasova, I. Yu. Bagryanskaya and N. A. Nedolya, Inorg. Chem. Front., 2019, 6, 671 DOI: 10.1039/C8QI01302K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements