Syntheses and structures of [Re(SC6H3Me2-2,6)3(PPh 3)], [Re(SC6H3Me2-2,6)3(Bu tNC)2], [Re(SC6H2Pri3-2,4,6) 3L(PPh3)] (L = N2 or CO) and [ReH4(PPh3)4]...

Jonathan R. Dilworth, Jin Hu, John R. Miller, David L. Hughes, Jon A. Zubieta, Qin Chen

Research output: Contribution to journalArticle

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Abstract

Full title: Syntheses and structures of [Re(SC6H3Me2-2,6)3(PPh 3)], [Re(SC6H3Me2-2,6)3(Bu tNC)2], [Re(SC6H2Pri3-2,4,6) 3L(PPh3)] (L = N2 or CO) and [ReH4(PPh3)4][ReO(SC6H 2Pri3-2,4,6)4]. The hydride [ReH7(PPh3)2] reacted with 2,6-dimethylbenzenethiol in toluene to give a complex of stoichiometry [Re(SC6H3Me2-2,6)3(PPh3)] 1. A crystal structure showed a trigonal-bipyramidal geometry about the Re with an agostic interaction to a thiolate methyl occupying an apical site, trans to the PPh3 ligand. Complex 1 reacts rapidly with MeCN to give the known [Re(SC6H3Me2-2,6)3(MeCN) (PPh3)] 2 and with ButNC to form [Re(SC6H3Me2-2,6)3(Bu tNC)2] 3. The crystal structure of 3 showed trigonal-pyramidal geometry about the Re with asymmetric co-ordination of the isocyanide ligands and an unusual configuration for the thiolate aromatic groups. The reactions of the hydrides [ReH7(PPh3)2] and [ReH5(PPh3)3] with 2,4,6-triisopropyl-, 2,6-dimethoxy-benzenethiol and tris(2-sulfanylphenyl)phosphine were also studied. With HSC6H2Pri3-2,4,6 the dinitrogen complex [Re(SC6H2Pri3-2,4,6) 3(N2) (PPh3)] 4 was formed and its structure determined. The preparations and structures of the complexes [ReH4(PPh3)4][ReO(SC6H 2Pri3-2,4,6)4], [Re{SC6H3(OMe)2-2,6}3(PPh 3)] and [Re{P(C6H4S-2)3} (PPh3)] are also discussed. An alternative convenient route to [ReH4(PPh3)4]+ from [ReH5(PPh3)3] is presented.

Original languageEnglish (US)
Pages (from-to)3153-3164
Number of pages12
JournalJournal of the Chemical Society, Dalton Transactions
Issue number19
DOIs
StatePublished - Dec 1 1995

ASJC Scopus subject areas

  • Chemistry(all)

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