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A Family of Calix[4]arene‐Supported [Mn III 2 Mn II 2 ] Clusters
Author(s) -
Taylor Stephanie M.,
Karotsis Georgios,
McIntosh Ruaraidh D.,
Kennedy Stuart,
Teat Simon J.,
Beavers Christine M.,
Wernsdorfer Wolfgang,
Piligkos Stergios,
Dalgarno Scott J.,
Brechin Euan K.
Publication year - 2011
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201003327
Subject(s) - calixarene , manganese , chemistry , crystallography , molecule , ligand (biochemistry) , alkyl , transition metal , stereochemistry , catalysis , organic chemistry , biochemistry , receptor
In the cone conformation calix[4]arenes possess lower‐rim polyphenolic pockets that are ideal for the complexation of various transition‐metal centres. Reaction of these molecules with manganese salts in the presence of an appropriate base (and in some cases co‐ligand) results in the formation of a family of calixarene‐supported [Mn III 2 Mn II 2 ] clusters that behave as single‐molecule magnets (SMMs). Variation in the alkyl groups present at the upper‐rim of the cone allows for the expression of a degree of control over the self‐assembly of these SMM building blocks, whilst retaining the general magnetic properties. The presence of various different ligands around the periphery of the magnetic core has some effect over the extended self‐assembly of these SMMs.