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Electrochemically induced Ligand Substitutions on : Rational Pathways to Osmium(II) Complexes

DOI: 10.1039/DT9850000947

Source and publish data:

Journal of the Chemical Society, Dalton Transactions p. 947 - 952 (1985)

Update date:2022-08-04

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Authors:

Coombe, Vyvyan T.Coombe, Vyvyan T.

Heath, Graham, A.Heath, Graham, A.

Stephenson, T. AnthonyStephenson, T. Anthony

Whitelock, John D.Whitelock, John D.

Yellowlees, Lesley J.Yellowlees, Lesley J.

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Article abstract of DOI:10.1039/DT9850000947

Following electroreduction of it is possible to stabilise and characterise the reactive monoanion -.This monoanion readily releases chloride to give a detectable five-co-ordinate intermediate which further reacts with a donor solvent or available ligands to produce (L = MeCN, dimethylformamide, dimethyl sulphoxide, PhCN, CO, N2, or C2H4), initially as the trans isomer.The latter can be converted into the cis form.When L = PMe2Ph, the 'trans isomer' formed is not trans- and should be formulated as trans- with a unique weakly bound phosphine.In non-co-ordinating media, concentrated solutions of undergo further reactions to form doubly and triply bridged binucler species such as and +.This series of electroinitiated reactions of mer- has so far yielded over 20 separate complexes individually identified by both spectroscopic methods and voltammetric data.

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