关键词:

MCM-41分子筛, 有机功能化, 羧基钯配合物

Abstract:

A series of new carboxyl Pd（Ⅱ）complexes were prepared from organic silica via immobilization on MCM-41 molecular sieve, and characterized with XRD，XPS，FT-IR and FT-Raman techniques.The results showed that —COOH groups could be immobilized on the MCM-41 surface via a reaction of the silanol groups with oxyalky-silane compounds, and the organically modified MCM-41 materials retained its hexagonally-packed porous structure during supporting organic species, but internal surface area and pore diameter of the materials decreased markedly.The direct binding to silica surfaces was achieved by direct ligands exchange of MCM-41 supported caboxylate group ligands with Pd(OAc)2.

Key words:

MCM-41分子筛, 有机功能化, 羧基钯配合物