Zeolite‐Entrapped Metal Complexes

Abstract

For the preparation of transition metal complexes in zeolites, a variety of monodentate as well as bi-and polydentate ligands has been used. The early work on monodentate-based complexes has been extensively reviewed by Lunsford [ 1, 21 and recent updates by Mortier and Schoonheydt [3] and by Ozin and Gil [4] are Preparation of Solid Catalysts

Zeolite-based photocatalysts

“…There have been published in the literature excellent reviews giving proper credit to the pioneers of this chemistry. [22][23][24][25][26][27] The actual preparation procedure for Ru(bpy) 3 2+ encapsulated within zeolites derives from the synthetic method described by Lundsford, 28 later improved by Dutta consisting in the reaction of an excess of 2,2-bipyridine at 200 °C with Ru(NH 3 ) 4 3+ previously exchanged in NaY zeolite (Scheme 5). [29][30][31] The origin of the electron gained spontaneously in the process of ligand exchange from Ru((NH) 3 3+ to Ru(bpy) 3 2+ is yet to be revealed.…”

“…Crude oil photodegradation has also been examined with these phthalocyanine/zeolite mixtures. 38 Given that metallophthalocyanines are among the first metallic complexes encapsulated inside zeolites by ship-in-a-bottle synthesis and that they can also be prepared by build-the-bottle-around-the-ship, 21,22,39 it would be of interest to investigate these zeolite-occluded dyes as photocatalysts as they have been studied as heterogeneous oxidation catalysts. 23,25,40 2 0 0 4 , 1 4 4 3 -1 4 5 9 1 4 4 6…”