Rectangular tetranuclear silver(I) and μ8-selenide-centered octanuclear copper(I) complexes containing bis(diphenylphosphino)amide ligands

Qian Feng Zhang*, Zhan Yu, Alexander Rothenberger, Dieter Fenske, Wa Hung Leung

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

15 Scopus citations


Interaction of Ag(CF3CO2) with bis(diphenylphosphino)amide (dppa) in THF gave a tetranuclear Ag4-coplanar silver(I) complex [Ag4(μ-dppa)24-O2PPh2)2(μ-CF3CO2)2] (1). The trinuclear trigonal-bipyramid copper(I) complex [Cu33-Cl)2(μ-dppa)3][CuCl2] (2) was obtained from the reaction of [CuCl] powder with bis(diphenylphosphino)amide (dppa) in THF. Treatment of 2 with (Me3Si)2Se in THF afforded a μ8-selenide-centered octanuclear copper(I) complex [Cu88-Se)(μ4-Se)(μ4-SeH)3(μ-dppa)4][(Ph2PO)2N] (3). The structures of 1-3 were determined by single-crystal X-ray diffraction analyses. Complex 1 comprises a rectangular Ag4 array with each edge bridged with a pair of μ-dppa, μ4-O2PPh2 and μ-CF3CO2 ligands that are approximately perpendicular to each other. Complex 2 contains a trigonal-bipyramid [Cu33-Cl)2]+ core surrounded by three μ-dppa ligands. The cationic complex in 3 consists of four [Cu2(μ-dppa)] fragments side-capped by one μ4-Se and three μ4-SeH ligands and center-connected by a μ8-Se atom.

Original languageEnglish (US)
Pages (from-to)1568-1574
Number of pages7
JournalInorganica Chimica Acta
Issue number5
StatePublished - Apr 1 2007


  • Bis(diphenylphosphino)amide
  • Copper(I) complex
  • Crystal structure
  • Silver(I) complex
  • Synthesis

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry


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