Use this URL to cite or link to this record in EThOS: http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.597013
Title: Studies of transition metal clusters with cyclic alkenes
Author: Brown, D. B.
Awarding Body: University of Cambridge
Current Institution: University of Cambridge
Date of Award: 1998
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Abstract:
Chapter one outlines the role of organometallic transition metal clusters as models for chemisorption in surface chemistry. The factors which govern the applicability of the "surface-cluster analogy" are examined, and structural comparisons between organic species chemisorbed on the metal surface and similar ligands bound to metal clusters are used to develop these ideas. Particular reference is made to chemisorbed ethene since the bonding modes of this ligand are of most relevance to subsequent chapters. Chapter two commences with a brief discussion of the industrial importance of catalytic transformations of cyclic hydrocarbons. In an attempt to elucidate the mechanisms of such processes a detailed study of the reaction of unsaturated C8 ring systems with ruthenium carbonyl clusters was undertaken and the results are presneted in this chapter. Chapter three is primarily concerned with metal cluster interactions with the bicyclic alkene norbornene. It commences with a brief introduction illustrating the structure and bonding of norbornene to monometallic species and on a Pt(111) surface followed by the chemistry it subsequently undergoes. The limited chemistry of norbornene on transition metal clusters is also described. Following this a detailed description of the reaction of norbornene with ruthenium carbonyl clusters is provided. There is also a description of the reaction of norbornene with the activated cluster compound Os3(CO)10(MeCN)2. Chapter four is concerned with metal cluster interactions with the bicyclic diene norbornadiene. It begins by illustrating the mode of bonding of norbornadiene on a Pt(111) surface and the chemistry it subsequently undergoes. The limited cluster chemistry of norbornadiene that has been reported is also summarised. Following this a detailed description of the reaction of norbornadiene with ruthenium carbonyl clusters is provided. There is also a description of the reaction of norbornadiene with the activated cluster compound Os3(CO)10(MeCN)2.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID: uk.bl.ethos.597013  DOI: Not available
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