Furfari, Samantha, Leech, Matthew, Trathen, Nicola, Levis, Madeleine Claire and Crossley, Ian (2019) Cyaphide-alkynyl complexes: metal-ligand conjugation and the influence of remote substituents. Dalton Transactions. ISSN 1477-9226
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Abstract
A homologous series of novel trans-cyaphide-alkynyl complexes, viz. trans-[Ru(dppe)2(CP)(CCC6H4R-p)] (R = Me, H, F, CO2Me, NO2) is prepared and comprehensively characterised, alongside their parent phosphaalkyne-complex cations trans-[Ru(dppe)2(1-PCSiMe3)(CCC6H4R-p)]+. Structural data for trans-[Ru(dppe)2(CP)(CCC6H4R-p)] (R = Me, F) and trans-[Ru(dppe)2(1-PCSiMe3)(CCC6H4R-p)]+ (R = F, CO2Me) are described, along with that for the previously reported trans-[Ru(dppe)2(CP)(CCCO2Me)]. NMR spectroscopic data indicate significant influence of the remote aromatic substituent over the properties of the cyaphide ligand, in line with the Hammett parameter (p), suggesting appreciable ‘communication’ along the through-conjugate chain. Cyclic voltammety shows irreversible oxidative behaviour, at more anodic Epa than in the respective alkynyl-chloride complexes, though apparently moderated by the remote substituent.
Item Type: | Article |
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Keywords: | alkynyl, organometallic, cyaphide, phosphorus, nmr, electrochemistry |
Schools and Departments: | School of Life Sciences > Chemistry |
Subjects: | Q Science > QD Chemistry > QD0146 Inorganic chemistry Q Science > QD Chemistry > QD0241 Organic chemistry > QD0411 Organometallic chemistry and compounds |
Related URLs: | |
Depositing User: | Ian Crossley |
Date Deposited: | 29 Apr 2019 12:57 |
Last Modified: | 24 Apr 2020 01:00 |
URI: | http://sro.sussex.ac.uk/id/eprint/83435 |
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📧 Request an updateProject Name | Sussex Project Number | Funder | Funder Ref |
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Linearly Conjugated Phosphacarbon Organometallics | G1810 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/N016785/1 |
Crossley - Conjugate phosphapolyynyls: en route to functional phosphaorganometallic polymers | G0200 | LEVERHULME TRUST | F/00 230/AL |
Polymetallaphosphacarbons: Toward phosphorus-doped organometallic molecular wires | G1182 | ROYAL SOCIETY | UF120021 |
EPSRC Doctoral Training Partnership 2016-17 | G1950 | EPSRC-ENGINEERING & PHYSICAL SCIENCES RESEARCH COUNCIL | EP/N509784/1 |