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The Homologous Series of 1,1’-Ferrocenylenebisdihalophosphanes (C5H4PX2)2Fe (X = F, Cl, Br, I): Precursors for the First Metallocene Bridged Bisphosphaalkene
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2006 (English)In: Dalton Transactions, 3879-3885 p.Article in journal (Refereed) Published
Abstract [en]

A facile synthetic access to the homologous series of 1,1 -ferrocenylene bisdihalophosphanes Fc (PX2)2 (X =F,Cl,Br,I;Fc =1,1 -ferrocenediyl =ferrocenylene =–C5H4FeC5H4 –)is reported.The 31 PNMR spectroscopic data of this series suggest a similar electronic interaction of the –PX2 unit with the ferrocene system as in monofunctional ferrocenyldihalophosphanes.Crystal structures for Fc (PCl2)2 and Fc (PBr2)2 reveal that the nature of the halogen atom within the phosphane unit strongly in ?uences the twist angle of the ferrocene system,while leaving the other structural parameters mostly unaffected. Based on these bisdihalophosphanes,a synthetic access to the ?rst metallocene bridged bisphosphaalkene ((C5H4P =C(t -Bu)OTMS)2Fe)is reported in which the tert -butyl substituents provide suf ?cient steric pressure to control the E /Z isomeric ratio which leads to the almost exclusive formation of the most stable Z ,Z isomer out of the three possible isomers.

Place, publisher, year, edition, pages
2006. 3879-3885 p.
National Category
Inorganic Chemistry Organic Chemistry
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URN: urn:nbn:se:uu:diva-254293ISBN: %( OAI: oai:DiVA.org:uu-254293DiVA: diva2:817809
Available from: 2015-06-06 Created: 2015-06-06 Last updated: 2015-06-06

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Orthaber, Andreas

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