Bell, N. L. , Arnold, P. L. and Love, J. B. (2016) Controlling uranyl oxo group interactions to group 14 elements using polypyrrolic Schiff-base macrocyclic ligands. Dalton Transactions, 45(40), pp. 15902-15909. (doi: 10.1039/C6DT01948J) (PMID:27356021)
|
Text
215194.pdf - Published Version Available under License Creative Commons Attribution. 935kB |
Abstract
Heterodinuclear uranyl/group 14 complexes of the aryl- and anthracenyl-linked Schiff-base macrocyclic ligands LMe and LA were synthesised by reaction of UO2(H2L) with M{N(SiMe3)2}2 (M = Ge, Sn, Pb). For complexes of the anthracenyl-linked ligand (LA) the group 14 metal sits out of the N4-donor plane by up to 0.7 Å resulting in relatively short M⋯OUO distances which decrease down the group; however, the solid state structures and IR spectroscopic analyses suggest little interaction occurs between the oxo and group 14 metal. In contrast, the smaller aryl-linked ligand (LMe) enforces greater interaction between the metals; only the PbII complex was cleanly accessible although this complex was relatively unstable in the presence of HN(SiMe3)2 and some organic oxidants. In this case, the equatorial coordination of pyridine-N-oxide causes a 0.08 Å elongation of the endo UO bond and a clear interaction of the uranyl ion with the Pb(II) cation in the second donor compartment.
Item Type: | Articles |
---|---|
Additional Information: | The authors thank the University of Edinburgh and the EPSRC (Grant numbers EP/M010554/1 and EP/H004823/1) for funding. |
Status: | Published |
Refereed: | Yes |
Glasgow Author(s) Enlighten ID: | Bell, Dr Nicola |
Authors: | Bell, N. L., Arnold, P. L., and Love, J. B. |
College/School: | College of Science and Engineering > School of Chemistry |
Journal Name: | Dalton Transactions |
Publisher: | Royal Society of Chemistry |
ISSN: | 1477-9226 |
ISSN (Online): | 1477-9234 |
Published Online: | 29 June 2016 |
Copyright Holders: | Copyright © 2016 The Royal Society of Chemistry |
First Published: | First published in Dalton Transactions 45(40): 15902-15909 |
Publisher Policy: | Reproduced under a Creative Commons License |
University Staff: Request a correction | Enlighten Editors: Update this record