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On the Surface Reactivity of Functionalized Phosphinines on Inorganic Supports
Author(s) -
Komath Mallissery Samith,
Nieger Martin,
Gudat Dietrich
Publication year - 2010
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.200900545
Subject(s) - catechol , moiety , reactivity (psychology) , chemistry , ligand (biochemistry) , mesoporous silica , phenol , covalent bond , coupling reaction , polymer chemistry , surface modification , mesoporous material , organic chemistry , catalysis , medicine , biochemistry , alternative medicine , receptor , pathology
Phosphinines with pendant phenol or catechol functionalities and their gold(I) complexes were synthesised and characterised by spectroscopic data and in one case by a single‐crystal X‐ray diffraction study. Reactions of ligands or complexes with TiO 2 or chloropropyl modified hexagonal mesoporous silica were then studied with the aim to immobilise ligands or complexes on the carrier by covalent tethering. 31 P MAS NMR studies revealed that immobilisation on TiO 2 was accompanied by complete degradation of the phosphinine moiety. Base induced coupling with chloropropyl modified silica produced a material that contained a mixture of several surface‐bound phosphorus compounds. 31 P MAS NMR studies revealed that approx. 40 % of the ligand had retained its integrity whereas the remaining fraction had been converted into further, not unambiguously identified structures.