Complexation Studies with a Calix[4]arene-Derived Phosphinite − Divergent Arrays of Cavities Linked by MCl2 Fragments (M = Pd, Pt)
✍ Scribed by Pascale Faidherbe; Catherine Wieser; Dominique Matt; Anthony Harriman; André De Cian; Jean Fischer
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 489 KB
- Volume
- 1998
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
A cone-shaped calix [4]arene-derived monophosphinite, 25,27-di(ethoxycarbonylmethoxy)-26-hydroxy-28-(diphenylphosphinooxy)calix[4]arene (L 1 ), has been prepared in two steps from calix[4]arene. Treatment of L 1 with [AuCl(tetrahydrothiophene)] in tetrahydrofuran gave the phosphinite complex [AuClL 1 ] (1). Reaction of [PdCl 2 (PhCN) 2 ] with two equivalents of L 1 gave selectively trans-[PdCl 2 L 1 2 ] (2). Complex 2 • 2 CH 2 Cl 2 crystallizes in the triclinic space group P1
¯. The molecule is centrosymmetric, leading to a divergent array of the two calixarene moieties. The palladium atom resi-