Reduction of [Cp*Sb]4 with Subvalent Main-Group Metal Reductants: Syntheses and Structures of [(L1Mg)4(Sb4)] and [(L2Ga)2(Sb4)] Containing Edge-Missing Sb4 Units

Chelladurai Ganesamoorthy, Julia Krüger, Christoph Wölper, Anton S. Nizovtsev, Stephan Schulz

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19 Citations (Scopus)

Abstract

[Cp*Sb]4 (Cp*=C5Me5) reacts with [L1Mg]2 and L2Ga with formation of [(L1Mg)441:2:2:2-Sb4)] (L1=iPr2NC[N(2,6-iPr2C6H3)]2, 1) and [(L2Ga)2(μ,η2:2-Sb4)] (L2=HC[C(Me)N(2,6-iPr2C6H3)]2, 2). The cleavage of the Sb−Sb and Sb−C bonds in [Cp*Sb]4 are the crucial steps in both reactions. The formation of 1 occurred by elimination of the Cp* anion and formation of Cp*MgL1, while 2 was formed by reductive elimination of Cp*2 and oxidative addition of L2Ga to the Sb4 unit. 1 and 2 were characterized by heteronuclear NMR spectroscopy and single-crystal X-ray diffraction, and their bonding situation was studied by quantum chemical calculations.

Original languageEnglish
Pages (from-to)2461-2468
Number of pages8
JournalChemistry - A European Journal
Volume23
Issue number10
DOIs
Publication statusPublished - 1 Jan 2017

Keywords

  • antimony
  • cluster compounds
  • main-group elements
  • subvalent compounds
  • Zintl ions
  • PHOSPHORUS
  • ACTIVATION
  • CORRELATION-ENERGY
  • REACTIVITY
  • HARTREE-FOCK
  • ELECTRON LOCALIZATION
  • ELEMENTS
  • CAGE COMPOUNDS
  • P-4
  • BOND

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