Copper(I) tert-butylthiolato clusters as single-source precursors for high-quality chalcocite thin films: Precursor chemistry in solution and the solid state

Sven Schneider, Alma Dzudza, Gabriele Raudaschl-Sieber, Tobin J. Marks

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Polymeric (CuStBu) (1) undergoes reaction with trialkylphosphines to form the cuprous thiolato phosphine complexes [(CuS tBu)4(PR3)2] (R = Me (2a), Et (2b)) in high yield. In contrast to 2b, in polar solvents (CH2Cl 2, tetrahydrofuran), complex 2a is in equilibrium with the ion pair Cu(PMe3)4+Cu5(StBu) 6- (3) and other species such as (CuStBu) x(PMe3)2 (x = 6 (4), 8 (5)). Clusters 2-4 were isolated analytically pure and fully characterized in solution by multinuclear nuclear magnetic resonance (NMR) spectroscopy and in the solid state by single-crystal X-ray diffraction and 31P magic angle spinning NMR spectroscopy, while the structure of compound 5 was determined by single-crystal X-ray diffraction. Thermal analysis (TGA/DTA) and examination of the volatile byproducts suggest stepwise phosphine loss and C-S bond cleavage by isobutene elimination as the predominant thermolysis pathways of this new Cu2S precursor class.

Original languageEnglish
Pages (from-to)2768-2779
Number of pages12
JournalChemistry of Materials
Volume19
Issue number11
DOIs
Publication statusPublished - May 29 2007

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ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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