Synthesis and structural characterization of cationic 5-Hydroxy-1,3-diketonate stabilized dinuclear complexes and tetranuclear lanthanoid clusters

Andrews, Philip, Gee, William J., Junk, Peter C., and MacLellan, Jonathan G. (2010) Synthesis and structural characterization of cationic 5-Hydroxy-1,3-diketonate stabilized dinuclear complexes and tetranuclear lanthanoid clusters. Inorganic Chemistry, 49 (11). pp. 5016-5024.

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View at Publisher Website: http://dx.doi.org/10.1021/ic1001732
 
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Abstract

5-Hydroxy-1,3-diketonate ligands have been found to stabilize dimeric complexes and tetrameric lanthanoid clusters dependent on the degree of steric bulk provided by the presence or absence of a methoxy group. Treatment of (R/S,Z)-1'-hydroxy-3-(hydroxy(phenyl)methylene)bi(cyclopentan)-2-one (Hhpb) and the p-methoxyphenyl derivative (Hhmb) with [LnCl2(H2O)6]Cl yields clusters of composition [Ln4(Cl)2(O)(hpb)6]Cl2 (Ln = Nd (1), Ho (2), Tb (3), and Er (4)) and [Ln2(hmb)5]Cl (Ln = La (5), Nd (6), Tb (7), Dy (8), and Er (9)). Single crystal X-ray analysis of the tetranuclear cluster has revealed the lanthanoid core to be in a tetrahedral arrangement around a central μ4-oxygen, bridged by symmetrical chlorides and shrouded in six bridging hpb ligands. The dimeric complexes are stabilized by three bridging and two terminal hmb ligands. In each instance, double or single cationic charges respectively are balanced by chloride anions.

Item ID: 29684
Item Type: Article (Research - C1)
ISSN: 1520-510X
Keywords: apart c2b4-carborane ligands; decacarbonyl hydride; metal-complexes; ions; coordination; chemistry; yttrium; series; lanthanide(III); mode
Funders: Australian Research Council (ARC), Monash University
Date Deposited: 02 Oct 2013 10:34
FoR Codes: 03 CHEMICAL SCIENCES > 0302 Inorganic Chemistry > 030202 f-Block Chemistry @ 100%
SEO Codes: 97 EXPANDING KNOWLEDGE > 970103 Expanding Knowledge in the Chemical Sciences @ 100%
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