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Structural Studies of MCM-48 Derivatized with (1,1′-Ferrocenediyl)dimethylsilane

✍ Scribed by Paula Ferreira; Isabel S. Gonçalves; Fred Mosselmans; Martyn Pillinger; João Rocha; Alan Thursfield

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
362 KB
Volume
2000
Category
Article
ISSN
1434-1948

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✦ Synopsis

Mesoporous materials / MCM-48 / Immobilization / (1,1Ј-Ferrocenediyl)dimethylsilane / 13 C and 29 Si solidstate NMR / Sandwich-complexes

The walls of the cubic mesoporous silicate MCM-48 have A high loading has been obtained (8.18 mass % Fe) and, as a result of the inclusion of the organometallic moiety, the N 2 been grafted with ferrocenyl end groups by a ring-opening reaction of the ansa-bridged ferrocene [Fe{(η-C 5 H 4 ) 2 SiMe 2 }],

adsorption isotherm exhibits a lower uptake. Direct structural evidence for the surface attachment of both single ferrocenyl carried out in a pentane solution at room temperature. The orange product has been characterized by elemental and short chain oligo(ferrocenyl) fragments has been obtained. analysis, powder X-ray diffraction, 13 C and 29 Si solid-state NMR, N 2 adsorption measurements, and Fe K-edge EXAFS.

tecture consisting of two mutually intertwined but uncon-[Fe{(η-C 5 H 4 ) 2 SiMe 2 }].

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