Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/23204
Title: Synthesis of tethered half-sandwich compounds of ruthenium
Authors: LEONG WEI LIN, JANET
Keywords: ruthenium functionalised-cyclopentadienyl tethered-ligands half-sandwich substituted-ruthenocenes donor-pendant
Issue Date: 8-Aug-2007
Source: LEONG WEI LIN, JANET (2007-08-08). Synthesis of tethered half-sandwich compounds of ruthenium. ScholarBank@NUS Repository.
Abstract: A series of functionalised cyclopentadienyl ruthenium compounds have been synthesised by the reaction of (C6H6RuCl2)2 and TlC5H4X to give mixed-sandwich complexes (C5H4X)Ru(C6H6)PF6, 3 and functionalised ruthenocenes (C5H4X)2Ru, 4 in the same reaction, and the tethered compounds (C5H4X)Ru(CH3CN)2PF6, 5 by the subsequent UV photolysis of 3 (where X = (CH2)2N(CH3)2 a, (CH2)3N(CH3)2 b, (CH2)2OCH3 c, (CH2)2CN d, or CH2CN e). The successful tethering of a functionalised cyclopentadienyl arm to ruthenium to form [[I?5:I?1-C5H4(CH2)3N(CH3)2]Ru(CH3CN)2]PF6, 5b was confirmed spectroscopically, as well as by a single crystal X-ray diffraction study. The molecular structure of 3d was also confirmed by a single crystal X-ray diffraction study. Compounds 3, 4 and 5 were found to show some catalytic activity in the oligomerisation of phenylacetylene to 1,2,4- and 1,3,5-triphenylbenzene.
URI: http://scholarbank.nus.edu.sg/handle/10635/23204
Appears in Collections:Master's Theses (Open)

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