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Synfacts 2011(4): 0382-0382
DOI: 10.1055/s-0030-1259632
DOI: 10.1055/s-0030-1259632
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag
Stuttgart ˙ New York
A Chelating Diphosphane Ligand on a β-Cyclodextrin Backbone
R. Gramage-Doria, D. Armspach*, D. Matt*, L. Toupet
Université de Strasbourg and Université de Rennes 1, France
Further Information
Publication History
Publication Date:
18 March 2011 (online)
Significance
The authors describe the synthesis of a large bite angle (160˚) diphosphane ligand 4 and its chelating properties in complexes with Au(I), Rh(I), Pd(II), and Pt(II). Due to the large distance between the phosphanes the metal cannot adopt an ideal distance to both phosphanes simultaneously, resulting in oscillation between alternately binding to one and the other phosphane more strongly.