Jump to main content
Jump to site search
PLANNED MAINTENANCE Close the message box

Scheduled maintenance upgrade on Thursday 4th of May 2017 from 8.00am to 9.00am (BST).

During this time our websites will be offline temporarily. If you have any questions please use the feedback button on this page. We apologise for any inconvenience this might cause and thank you for your patience.


Issue 44, 2016
Previous Article Next Article

Heteroleptic ruthenium(II) chromophores based on tunable polytopic 4′-(benzamidinato)-2,2′:6′,2′′-terpyridines

Author affiliations

Abstract

A modulable and simple approach towards heteroleptic ruthenium(II) complexes of amidine-based polypyridine ligands is presented. New complexes 1 and 2 ([(terpyridine)Ru(terpyridine-C6H4-C(NR)(NHR))]2+ with R = propyl and R = phenyl derivatives, respectively) were characterized by NMR spectroscopy in solution and by X-ray diffraction, which confirmed the obtention of the (E) stereoisomer alone. Depending on the bulkiness of the R-substituents introduced on the amidine moiety, rotational isomerism around the C–N bond could be observed at r.t. Spectroscopic and electrochemical studies showed that the nature of the R-substituents introduced on the amidine moiety can significantly influence the redox and ground-state acido-basic properties of the complexes, while maintaining their electronic features. This particular tunability of polytopic 4′-(amidinato)-terpyridines offers an interesting perspective for photoactive units in larger multi-functional arrays.

Graphical abstract: Heteroleptic ruthenium(ii) chromophores based on tunable polytopic 4′-(benzamidinato)-2,2′:6′,2′′-terpyridines

Back to tab navigation
Please wait while Download options loads

Supplementary files

Publication details

The article was received on 09 Aug 2016, accepted on 08 Oct 2016 and first published on 10 Oct 2016


Article type: Paper
DOI: 10.1039/C6DT03169B
Citation: Dalton Trans., 2016,45, 17850-17858
  •   Request permissions

    Heteroleptic ruthenium(II) chromophores based on tunable polytopic 4′-(benzamidinato)-2,2′:6′,2′′-terpyridines

    M. W. Cooke, M. Santoni, B. Hasenknopf and G. S. Hanan, Dalton Trans., 2016, 45, 17850
    DOI: 10.1039/C6DT03169B

Search articles by author