Arnold, P. L., Farnaby, J. H. , Gardiner, M. G. and Love, J. B. (2015) Uranium(III) coordination chemistry and oxidation in a flexible small-cavity macrocycle. Organometallics, 34(11), pp. 2114-2117. (doi: 10.1021/om5012193)
|
Text
135230.pdf - Accepted Version 347kB |
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 U–X 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 Type: | Articles |
---|---|
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Farnaby, Dr Joy |
Authors: | Arnold, P. L., Farnaby, J. H., Gardiner, M. G., and Love, J. B. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Organometallics |
Publisher: | American Chemical Society |
ISSN: | 0276-7333 |
ISSN (Online): | 1520-6041 |
Published Online: | 20 January 2015 |
Copyright Holders: | Copyright © 2015 American Chemical Society |
First Published: | First published in Organometallics 34(11): 2114-2117 |
Publisher Policy: | Reproduced in accordance with the publisher copyright policy |
University Staff: Request a correction | Enlighten Editors: Update this record