Platinum complexes of aromatic selenolates

Amy Fuller, Fergus Ross Knight, Alexandra Martha Zoya Slawin, J Derek Woollins

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

Several synthetic methods are used to prepare naphthalene-based aromatic 1,2-diselenoles. A new one-pot synthesis starting from naphthalene is used to produce theknown compound naphtho[1,8-c,d][1,2]diselenole (Se2naph).Friedel–Crafts alkylation is used on Se2naph to substitute either one tert-butyl group to form 2-tert-butylnaphtho[1,8-c,d][1,2]diselenole (mt-Se2naph) or two tert-butyl groups to form 2,7-di-tert-butylnaphtho[1,8-c,d][1,2]diselenole (dt-Se2naph). Bromination of mt-Se2naph results in dibromination of the naphthalene ring, rather than reaction at selenium, to give 4,7-dibromo-2-tert-butylnaphtho[1,8-c,d][1,2]diselenole (mt-Se2naphBr2). Reduction of the Se–Se bond in Se2naph, mt-Se2naph, dibenzo[c,e][1,2]diselenine (dibenzSe2), or diphenyl diselenide (Se2Ph2) with LiBEt3 H, followed by in-situ addition of [PtCl2{P(OPh)3}2] yields the four-coordinate mono- and dinuclear platinum(II) bis(phosphite) complexes [Pt(Se2naph){P(OPh)3}2] (1), [Pt(mt-Se2naph){P(OPh)3}2] (2), [Pt2(dibenzSe2)2{P(OPh)3}2] (3), cis-[Pt(SePh)2{P(OPh)3}2] (4), and trans-[Pt2(SePh)4{P(OPh)3}2] (5).
Original languageEnglish
Pages (from-to)4034-4043
Number of pages10
JournalEuropean Journal of Inorganic Chemistry
Volume2010
Issue number25
DOIs
Publication statusPublished - Sept 2010

Keywords

  • Platinum
  • Selenium
  • Heterocycles
  • Polyaromatic hydrocarbon ligands
  • Crystal-structure
  • Naphthalenes
  • TETRAKIS(TRIPHENYLPHOSPHINE)PALLADIUM
  • Sulfur

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