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Issue 29, 2012
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Non-conventional coordination of cavity-confined metal centres

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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 31P 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.

Graphical abstract: Non-conventional coordination of cavity-confined metal centres

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Supplementary files

Article information

05 Apr 2012
17 May 2012
First published
18 May 2012

Dalton Trans., 2012,41, 8786-8796
Article type

Non-conventional coordination of cavity-confined metal centres

R. Gramage-Doria, D. Armspach, D. Matt and L. Toupet, Dalton Trans., 2012, 41, 8786
DOI: 10.1039/C2DT30751K

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