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Título

Linear or cyclic clusters of Cu(II) with a hierarchical relationship

AutorCraig, G. A.; Aguilà, D.; Roubeau, Olivier; Ribas-Ariño, Jordi; Teat, Simon J.; Aromí, Guillem
Fecha de publicación2014
EditorAmerican Chemical Society
CitaciónInorganic Chemistry 53(7): 3290-3297 (2014)
ResumenThe polydentate ligand 2,6-bis(5-(2-hydroxyphenyl)-pyrazol-3-yl)-pyridine, H4L, exhibits a series of coordination pockets favoring the establishment of metal sequences with predetermined motifs, together with a degree of flexibility for the formation of clusters with various overall topologies. With Cu(II) under strong basic conditions it has a marked tendency to stabilize a cyclic [Cu16L8] cluster. The sequential formation of this compound via [Cu7L8]2- intermediates, recognized in its structure, is suggested by crystallographic evidence, which shows the persistent formation of the complex salt (NBu 4)2[Cu7L8] in the presence of the organic cation. Also, the crystallographic identification of the related cluster [Cu11L5(OH)2(py)12] from similar reaction conditions underscores the rich multiplicity of species attainable from this simple reaction system. © 2014 American Chemical Society.
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URIhttp://hdl.handle.net/10261/118352
DOI10.1021/ic402647t
Identificadoresdoi: 10.1021/ic402647t
issn: 0020-1669
e-issn: 1520-510X
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