Formation of Group 11 Bismuth Sulfide Nanoparticles Using Bismuth Dithioates under Mild Conditions

Dimuthu C. Senevirathna, Melissa V. Werrett, Narendra K. Pai, Victoria L. Blair, Leone Spiccia, Philip C. Andrews

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Abstract

The formation of mixed-metal sulfides with the general structure AgBiS2 and Cu3BiS2 by a simple two-step process utilizing bismuth dithiocarboxylates as Bi and S precursors is described. A sonochemical reaction of Bi2O3 with six different aryl dithioic acids: dithiobenzoic acid (BDT-H), 4-methoxydithiobenzoic acid (4-MBDT-H), 3-methyldithiobenzoic acid (3-MBDT-H), 2-mesitylenedithioic acid (2-MDT-H), 4-fluorodithiobenzoic acid (4-FBDT-H), and 2-thiophenedithioic acid (2-TDT-H) resulted in the corresponding complexes: [Bi(BDT)3] 1, [Bi(4-MBDT)3] 2, [{Bi(3-MBDT)3}2⋅C7H8] (32⋅C7H8), [Bi(2-MDT)3] 4, [Bi(4-FBDT)3] 5 and [Bi(2-TDT)3] 6. Microwave irradiation of these bismuth(III)aryldithioate complexes with AgNO3 or CuCl under mild reaction conditions (140 °C) resulted in the respective mixed-metal sulfides. Attempt to synthesize AuBiS2 using similar reaction protocols were unsuccessful, resulting only in the formation of elemental Au0, S8 and BiOCl.

Original languageEnglish
Pages (from-to)8171-8175
Number of pages5
JournalChemistry - A European Journal
Volume23
Issue number34
DOIs
Publication statusPublished - 16 Jun 2017

Keywords

  • bismuth
  • dithioate ligands
  • microwaves
  • mixed-metal sulfides
  • nanoparticles

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