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Exploring the chemistry and photophysics of substituted picolinates positional isomers in iridium(III) bisphenylpyridine complexes.

Davidson, Ross and Hsu, Yu-Ting and Bhagani, Chandni and Yufit, Dmitry and Beeby, Andrew (2017) 'Exploring the chemistry and photophysics of substituted picolinates positional isomers in iridium(III) bisphenylpyridine complexes.', Organometallics., 36 (15). pp. 2727-2735.

Abstract

A simple and versatile route for modifying picolinate ligands coordinated to iridium is described. Reacting a μ-chloro iridium(C∧N) dimer (where C∧N is a phenylpyridine-based ligand) with bromopicolinic acid (HpicBr) yields the corresponding iridium(C∧N)2(picBr) complexes (1–4 and 11), which were readily modified by a Sonogashira reaction to give eight alkyne-substituted picolinate complexes (5–10, 12, and 13). The luminescent behavior of these complexes shows that the position of substitution about the picolinate ring has an effect on both photophysical behavior as well as the reactivity.

Item Type:Article
Full text:(AM) Accepted Manuscript
First Live Deposit - 24 August 2017
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Status:Peer-reviewed
Publisher Web site:https://doi.org/10.1021/acs.organomet.7b00179
Publisher statement:This document is the Accepted Manuscript version of a Published Work that appeared in final form in Organometallics copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acs.organomet.7b00179
Record Created:24 Aug 2017 09:43
Last Modified:08 Jul 2018 00:54

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