Different Reactivity of As4 towards Disilenes and Silylenes

Andreas E. Seitz, Maria Eckhardt, Sakya S. Sen, Andreas Erlebach, Eugenia V. Peresypkina, Herbert W. Roesky, Marek Sierka, Manfred Scheer

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The activation of yellow arsenic is possible with the silylene [PhC(NtBu)2SiN(SiMe3)2] (1) and the disilene [(Me3Si)2N(η1-Me5C5)Si=Si(η1-Me5C5)N(SiMe3)2] (3). The reaction of As4 with 1 leads to the unprecedented As10 cage compound [(LSiN(SiMe3)2)3As10] (2; L=PhC(NtBu)2) with an As7 nortricyclane core stabilized by arsasilene moieties containing silicon(II)bis(trimethylsilyl)amide substituents. In contrast, the compound [Cp*{(SiMe3)2N}SiAs]2 (4) containing a butterfly-like diarsadisilabicyclo[1.1.0]butane unit is formed by the reaction of As4 with the disilene 3. Both compounds were characterized by single-crystal X-ray diffraction analysis, NMR spectroscopy, and mass spectrometry. The reaction outcomes demonstrate the different reaction behavior of yellow arsenic (As4) compared to white phosphorus (P4) in the reactions with the corresponding silylenes and disilenes.

Original languageEnglish
Pages (from-to)6655-6659
Number of pages5
JournalAngewandte Chemie - International Edition
Volume56
Issue number23
DOIs
Publication statusPublished - 1 Jun 2017

Keywords

  • arsenic
  • density functional calculations
  • silicon
  • silylene
  • small-molecule activation
  • TRANSFORMATION
  • COMPLEXES
  • P-4 ACTIVATION
  • ELEMENTS
  • TETRAHEDRON
  • CAGE COMPOUNDS
  • DINITROGEN
  • WHITE PHOSPHORUS
  • BOND
  • AGGREGATION

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