NDLI: Synthesis of cubane-type Ni(II) complexes from pyridyl-alcohol ligands; their single-molecule magnet behaviour.

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Synthesis of cubane-type Ni(II) complexes from pyridyl-alcohol ligands; their single-molecule magnet behaviour.

Content Provider	Semantic Scholar
Author	Hameury, Sophie Kayser, Laure Pattacini, Roberto Rogez, Guillaume Wernsdorfer, Wolfgang Braunstein, Pierre
Copyright Year	2013
Abstract	The reactions of NiCl2·2H2O or [NiCl2(DME)] (DME = dimethoxyethane) with 2-methyl-1-(pyridin-2-yl)propan-2-ol (HL) and 2-(pyridin-2-yl)ethanol (HLEt), in a 1:1 ratio, afforded the tetranuclear, cubane-type clusters [Ni(μ3-Cl)Cl(HL)]4 (3) and [Ni(μ3-Cl)Cl(HLEt)]4 (4), respectively. These are tetramers of the hypothetical mononuclear formula-isomers [NiCl2(HL)] and [NiCl2(HLEt)], respectively, and represent rare examples of structurally characterized cubane-like transition metal dihalogenide complexes. The 2:1 reactions between HL or HLEt and [NiCl2(DME)] yielded, instead, the mononuclear [NiCl2(HL)2] (1) and the dinuclear complex [Ni(μ-Cl)(HLEt)2]2Cl2 (2), respectively. The reaction of 3 with NaOH afforded selectively the cubane-type cluster [Ni(μ3-OH)Cl(HL)]4 (5) which differs only in the nature of the capping anions (Cl vs. OH, respectively). The magnetic properties of the unusual tetranuclear cubanes 3 and 5 have been investigated and revealed in both cases single-molecule magnet (SMM) behaviour.
File Format	PDF HTM / HTML
DOI	10.1039/c3dt32869d
PubMed reference number	23389638
Journal	Medline
Volume Number	42
Issue Number	14
Alternate Webpage(s)	http://www.rsc.org/suppdata/dt/c3/c3dt32869d/c3dt32869d.pdf
Journal	Dalton transactions
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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