NDLI: Heteroleptic rhodium NHC complexes with pyridine -derived ligands : synthetic accessibility and reactivity towards oxygen

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Keske, Eric C. Wang, Ruiyao Crudden, Cathleen M. Kochhar, Gurpaul S. Zenkina, Olena V.
Description	Author Affiliation: Zenkina OV ( Department of Chemistry, Queen's University, Chernoff Hall, 90 Bader Lane, Kingston, Canada K7L 3N6.)
Abstract	The synthesis, structure determination and oxidative stability of novel Rh–NHC complexes which feature pyridine -derived ligands have been described. All complexes described herein were synthesized from common dinuclear precursors of general structure $[Rh(NHC)(L)Cl]_{2},$ where L is a monodentate olefin . We demonstrate that the use of these precursors is critical for the formation of all complexes since related cyclooctadiene containing precursors ([Rh(NHC)(COD)Cl]) were completely unreactive under identical conditions. We further demonstrate that complexes with the general formula [Rh(NHC)(olefin)(Py)Cl] or ([Rh(NHC)(BiPy/Phen)Cl]) are extremely sensitive to oxygen, reacting initially to give an adduct with dioxygen, and then decomposing further. The series of compounds and their oxidation products gave a remarkable range of colours which may be useful in the preparation of colourometric oxygen sensors.
ISSN	14779226
Issue Number	6
Journal	Dalton Trans.
Volume Number	42
e-ISSN	13645447
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2013-02-14
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Chemistry
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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