Dalton communications. Effects of catalyst site accessibility on catalysis by rhodium(I) complexes of amphiphilic ligands [Ph2P(CH2) n PMe3]+(n= 2, 3, 6 or 10) tethered to a cation-exchange resin

Autor:	Michael C. Baird, Eric Renaud
Rok vydání:	1992
Předmět:	Steric effects Olefin fiber Chemistry Polymer chemistry Amphiphile chemistry.chemical_element Organic chemistry General Chemistry Ion-exchange resin Catalysis Rhodium
Zdroj:	Journal of the Chemical Society, Dalton Transactions. :2905
ISSN:	1364-5447 0300-9246
DOI:	10.1039/dt9920002905
Popis:	The effects of catalyst site accessibility on the activities of supported olefin hydrogenation catalysts have been assessed utilizing the complexes [Rh(nbd)L2][NO3]3[nbd =η4-norbornadiene; L = Ph2P(CH2)nPMe3+; n= 2, 3, 6 or 10] tethered to a cation-exchange resin via the tetraalkyl-phosphonium moieties of the co-ordinated ligands; the most active catalysts are those containing the longer-chain ligands, where the catalyst sites are farthest removed from steric hindrance by the resin surface.
Databáze:	OpenAIRE
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