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Uranium(III) coordination chemistry and oxidation in a flexible small-cavity macrocycle

Citation

Arnold, PL and Farnaby, JH and Gardiner, MG and Love, JB, Uranium(III) coordination chemistry and oxidation in a flexible small-cavity macrocycle, Organometallics, 34, (11) pp. 2114-2117. ISSN 0276-7333 (2015) [Refereed Article]

Copyright Statement

Copyright 2015 American Chemical Society

DOI: doi:10.1021/om5012193

Abstract

U(III) complexes of the conformationally flexible, small-cavity macrocycle trans-calix[2]benzene[2]pyrrolide (L)2, [U(L)X] (X = O-2,6-tBu2C6H3, N(SiMe3)2), have been synthesized from [U(L)BH4] and structurally characterized. These complexes show binding of the U(III) center in the bis(arene) pocket of the macrocycle, which flexes to accommodate the increase in the steric bulk of X, resulting in long UX bonds to the ancillary ligands. Oxidation to the cationic U(IV) complex [U(L)X][B(C6F5)4] (X = BH4) results in ligand rearrangement to bind the smaller, harder cation in the bis(pyrrolide) pocket, in a conformation that has not been previously observed for (L)2, with X located between the two ligand arene rings.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Inorganic Chemistry
Research Field:f-Block Chemistry
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Chemical Sciences
Author:Gardiner, MG (Associate Professor Michael Gardiner)
ID Code:102504
Year Published:2015
Web of Science® Times Cited:11
Deposited By:Chemistry
Deposited On:2015-08-25
Last Modified:2017-11-02
Downloads:0

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