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Article Dans Une Revue Dalton Transactions Année : 2012

Non-conventional coordination of cavity-confined metal centres.

Loïc Toupet
Dominique Matt
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Résumé

WIDEPHOS, a β-cyclodextrin cavitand bearing two introverted P(III) donor atoms, readily accommodates two converging Au-X fragments (X = Cl, Br, I). In the corresponding [(WIDEPHOS)(AuX)(2)] complexes, severe steric crowding within the cavity results in one of the P-Au-X rods deviating from linearity, as revealed by an X-ray diffraction study and unusual (31)P magnetic shielding of one of the two phosphorus signals. The cavitand ligand is also suited for hosting strained dipalladium moieties with a single chlorido bridge, thereby forming dynamic complexes in which ligand coordination to one of the metal centres occurs via an oschelating P,O-subunit.
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Dates et versions

hal-00855314 , version 1 (29-08-2013)

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Rafael Gramage-Doria, Loïc Toupet, Dominique Matt, Dominique Armspach. Non-conventional coordination of cavity-confined metal centres.. Dalton Transactions, 2012, 41 (29), pp.8786-96. ⟨10.1039/c2dt30751k⟩. ⟨hal-00855314⟩
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