Routes to metallodendrimers of the [Re63-Se)8]2+ core-containing clusters

Bryan K. Roland, Chet Carter, Zhiping Zheng

Research output: Contribution to journalArticle

81 Scopus citations

Abstract

The reaction of [Re63-Se)8(PEt3)5(MeCN)](SbF6)2 with an excess of 1,2-bis(4-pyridyl)ethane (L1) and (E)-1,2-bis(4-pyridyl)ethene (L2) produced [Re63-Se)8(PEt3)5(L1)](SbF6)2 and [Re63-Se)8(PEt3)5(L2)](SbF6)2, respectively, each bearing an accessible pyridyl N atom capable of further metal coordination. Reacting these cluster complex-based ligands with [Re63-Se)8(MeCN)6](SbF6)2 afforded two heptacluster metallodendrimers, each featuring a central [Re63-Se)8]2+ cluster core surrounded by six units of [Re63-Se)8(PEt3)5]2+ via the bridging interactions of its respective dipyridyl-based ligands. Their identity and stereochemistry have been established, with the most convincing evidence furnished by a unique 77Se NMR spectroscopic study. Electrochemical studies suggest very interesting electronic properties of these novel metallodendrimers.

Original languageEnglish (US)
Pages (from-to)6234-6235
Number of pages2
JournalJournal of the American Chemical Society
Volume124
Issue number22
DOIs
StatePublished - Jun 5 2002

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ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)
  • Biochemistry
  • Colloid and Surface Chemistry

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