Issue 44, 2017

Benzannulated Re(i)–NHC complexes: synthesis, photophysical properties and antimicrobial activity

Abstract

A series of novel Re(I)(CO)3–NHC complexes bearing unsubstituted benzimidazol-2-ylidene ligands as well as a variety of bisimine ligands has been prepared and comprehensively characterised. The complexes were found to exhibit potent antimicrobial activity on Gram-positive bacterial strains in the low micromolar concentration range, rendering these compounds interesting lead structures for the development of novel metal-based antibiotic agents. Further, the complexes exhibit pronounced luminescence with large Stokes shifts in acetonitrile and water at ambient temperature. The photophysical properties including luminescence lifetimes and quantum yields are consistent with emission from 3MLCT (d(Re) → π*(bisimine)) states.

Graphical abstract: Benzannulated Re(i)–NHC complexes: synthesis, photophysical properties and antimicrobial activity

Supplementary files

Article information

Article type
Paper
Submitted
04 Aug 2017
Accepted
11 Oct 2017
First published
25 Oct 2017

Dalton Trans., 2017,46, 15269-15279

Benzannulated Re(I)–NHC complexes: synthesis, photophysical properties and antimicrobial activity

D. Siegmund, N. Lorenz, Y. Gothe, C. Spies, B. Geissler, P. Prochnow, P. Nuernberger, J. E. Bandow and N. Metzler-Nolte, Dalton Trans., 2017, 46, 15269 DOI: 10.1039/C7DT02874A

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