Systematic study of the formation of the lanthanoid cubane cluster motif mediated by steric modification of diketonate ligands

Andrews, Philip C., Gee, William J., Junk, Peter C., and Maclellan, Jonathan G. (2011) Systematic study of the formation of the lanthanoid cubane cluster motif mediated by steric modification of diketonate ligands. Dalton Transactions, 40. pp. 12169-12179.

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View at Publisher Website: http://dx.doi.org/10.1039/c1dt10580a
 
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Abstract

The treatment of ortho ring-functionalised 1-phenylbutane-1,3-dione ligands bearing nitro (Hnpd, Hnmc), methoxy (Hmmc) or fluoro (Hfpp) groups with hydrated lanthanoid salts has provided [Er4(μ3-OH)4(H2O)2(npd)8] (3), [Ln4(μ3-OH)4(nmc)8] (Ln = Gd (4), Tb (5), Dy (6) and Er (7)), [Er4(μ3-OH)4(mmc)8] (8) and [Er4(μ3-OH)4(H2O)2(fpp)8] (9), respectively. The products were all obtained as cubane clusters in the solid state, as distinct from previous diketonato clusters, with control over motif formation attributed to the steric influence of the ortho-positioned functional groups at the cluster periphery. This work highlights a means of targeting a specific lanthanoid cluster motif by the rational modification of ligands at key locations.

Item ID: 29655
Item Type: Article (Research - C1)
ISSN: 1477-9234
Keywords: structural-characterization; crystal-structure; hydrogen-bonds; complexes; tetranuclear; ions; acid; coordination; design
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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