Synthesis, structure and properties of {M4O4} cubanes containing nickel(II) and cobalt(II)

Article Article scientifique Article Synthesis, structure and properties of {M4O4} cubanes containing nickel(II) and cobalt(II) eng 2007 author Isele Katharina 513494 author Gigon Fabienne 566157 author Williams Alan Francis 25350 author Bernardinelli Gérald Hugues 24765 author Franz Patrick author Decurtins Silvio 332-341 10.1039/b614424a 1477-9226 http://xlink.rsc.org/?DOI=B614424A A survey of the crystal structures containing simple {M4O4} cubane units is reported. It shows that the average M–M distance in these complexes is relatively constant for a given metal ion M. The structures are all distorted from the idealised cube to a Td structure, and most show a further distortion which, however, usually maintains some elements of symmetry. A system for classifying the different types of ligand in these complexes is proposed. Two new cubanes of cobalt(II) and nickel(II) with the ligand (R,R)-bis-1,2-(1-methylbenzimidazol-2-yl)ethane-1,2-diol, (R,R)-1 or its enantiomer have been isolated and the crystal structure of the cobalt(II) complex confirms the cubane structure. Electronic, CD and 1H NMR spectra and magnetic susceptibility data are reported. The magnetic data for these and other compounds in the literature are discussed in terms of the structural parameters. Dewey 540 40 Département de chimie minérale, analytique et appliquée 145 false Dalton Transactions 3 7c9caa99-72c7-4b52-9885-98ff53a97fc9 Article (Published version) Restricted art.ChimieUniGE.pdf 259673 application/pdf restrictedAccess Faculté des sciences / Section de chimie et biochimie / Département de chimie minérale, analytique et appliquée

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Synthesis, structure and properties of {M₄O₄} cubanes containing nickel(II) and cobalt(II)	Dalton Transactions			2007	452	0

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Isele, Katharina