Synthesis and characterization of ferrocenyl-modified mesoporous silicates

The mesoporous silicates MCM-41 and FSM-16 have been functionalized with a range of ferrocenyl groups. The general synthetic methodology involves either reaction of the strained [1]ferrocenophanes [Fe(η-C5R4)2SiMe2] (R = H or Me), [Fe(η-C9Me6)(η-C5H 4)SiMe2], or the ferrocenyl carbocation [Fe(η-C5Me...

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Main Authors: O'Brien, S, Keates, J, Barlow, S, Drewitt, M, Payne, B, O'Hare, D
Format: Journal article
Language:English
Published: 1998
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author O'Brien, S
Keates, J
Barlow, S
Drewitt, M
Payne, B
O'Hare, D
author_facet O'Brien, S
Keates, J
Barlow, S
Drewitt, M
Payne, B
O'Hare, D
author_sort O'Brien, S
collection OXFORD
description The mesoporous silicates MCM-41 and FSM-16 have been functionalized with a range of ferrocenyl groups. The general synthetic methodology involves either reaction of the strained [1]ferrocenophanes [Fe(η-C5R4)2SiMe2] (R = H or Me), [Fe(η-C9Me6)(η-C5H 4)SiMe2], or the ferrocenyl carbocation [Fe(η-C5Me5)(η-C5Me4CH 2)]+ with the dehydrated mesoporous silicate. The materials have been extensively characterized by (inter alia) solid-state 13C and 29Si NMR and Fe K-edge EXAFS spectroscopy. The reaction of either [Fe(η-C5H4)2SiMe2] or [Fe(η-C5Me4)2SiMe2] with MCM-41 affords both single ferrocenyl and short chain oligo(ferrocenyl) units grafted to the silicate walls of the mesopores. In contrast, the reaction of [Fe(η-C9-Me5)(η-C5H 4)SiMe2] with MCM-41 gives only a single type of ferrocenyl group attached to the pore walls via a regiospecific ring-opening reaction in which the Si-(C5H4) bond is broken in preference to the Si-(C9Me6) bond. © 1998 American Chemical Society.
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spelling oxford-uuid:82bf9cdc-0d36-4155-bb19-8e7fb6956bc42022-03-26T21:39:29ZSynthesis and characterization of ferrocenyl-modified mesoporous silicatesJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:82bf9cdc-0d36-4155-bb19-8e7fb6956bc4EnglishSymplectic Elements at Oxford1998O'Brien, SKeates, JBarlow, SDrewitt, MPayne, BO'Hare, DThe mesoporous silicates MCM-41 and FSM-16 have been functionalized with a range of ferrocenyl groups. The general synthetic methodology involves either reaction of the strained [1]ferrocenophanes [Fe(η-C5R4)2SiMe2] (R = H or Me), [Fe(η-C9Me6)(η-C5H 4)SiMe2], or the ferrocenyl carbocation [Fe(η-C5Me5)(η-C5Me4CH 2)]+ with the dehydrated mesoporous silicate. The materials have been extensively characterized by (inter alia) solid-state 13C and 29Si NMR and Fe K-edge EXAFS spectroscopy. The reaction of either [Fe(η-C5H4)2SiMe2] or [Fe(η-C5Me4)2SiMe2] with MCM-41 affords both single ferrocenyl and short chain oligo(ferrocenyl) units grafted to the silicate walls of the mesopores. In contrast, the reaction of [Fe(η-C9-Me5)(η-C5H 4)SiMe2] with MCM-41 gives only a single type of ferrocenyl group attached to the pore walls via a regiospecific ring-opening reaction in which the Si-(C5H4) bond is broken in preference to the Si-(C9Me6) bond. © 1998 American Chemical Society.
spellingShingle O'Brien, S
Keates, J
Barlow, S
Drewitt, M
Payne, B
O'Hare, D
Synthesis and characterization of ferrocenyl-modified mesoporous silicates
title Synthesis and characterization of ferrocenyl-modified mesoporous silicates
title_full Synthesis and characterization of ferrocenyl-modified mesoporous silicates
title_fullStr Synthesis and characterization of ferrocenyl-modified mesoporous silicates
title_full_unstemmed Synthesis and characterization of ferrocenyl-modified mesoporous silicates
title_short Synthesis and characterization of ferrocenyl-modified mesoporous silicates
title_sort synthesis and characterization of ferrocenyl modified mesoporous silicates
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