Palladium and platinum complexes of chiral and achiral calix[4]arene bisphosphite ligands
作者： Pathik Maji , Setharampattu S. Krishnamurthy , Munirathinam Nethaji
DOI: 10.1016/J.POLY.2008.08.008
关键词:
摘要: Chiral and achiral p-tert-butyl-calix[4]arene bisphosphites (L1–L3) have been synthesized by the reaction of phosphorodichloridites, ROPCl2 [R = (1S,2R,5R)-(+)-iso-menthyl (L1), (1R,2S,5R)-(−)-menthyl (L2) or C6H4But-4 (L3)]. These function as chelating ligands in palladium(II) platinum(II) complexes which are formed good yields PdCl2(PhCN)2, MCl2(COD) (M Pd Pt) PdMeCl(COD) with respective calix[4]arene bisphosphite. Single crystal X-ray diffraction studies performed on [PdCl2(L1)], [PdCl2(L2)], [PdCl2(L3)] [PtCl2(L3)] reveal a near square planar geometry around metal two chloride cis disposition. The packing [PdCl2(L1)] crystallize chiral (P6122) space group, shows different hydrophobic channels intermolecular C–Hcdots, three dots, centeredCl hydrogen bonding. isostructural molecules lattice linked centeredO bonds.
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