Syntheses and structures of terminal arylalumylene complexes

Koichi Nagata, Tomohiro Agou, Norihiro Tokitoh

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

Terminal arylalumylene complexes of platinum [Ar-Al-Pt(PCy 3)2] (Ar=2,6-[CH(SiMe3)2] 2C6H3 (Bbp) or 2,6-[CH(SiMe3) 2]2-4-(tBu)C6H2 (Tbb)) have been synthesized either by the reaction of a dialumene-benzene adduct with [Pt(PCy3)2], or by the reduction of 1,2-dibromodialumanes Ar(Br)Al-Al(Br)Ar in the presence of [Pt(PCy3)2]. X-Ray crystallographic analysis reveals that the Al-Pt bond lengths of these arylalumylene complexes are shorter than the previously reported shortest Al-Pt distance. DFT calculations suggest that the Al-Pt bonds in the arylalumylene complexes have a significantly high electrostatic character. Quite a character: A terminal arylalumylene complex of platinum was obtained by the reaction of a dialumene-benzene adduct and [Pt(PCy3)2]. Reduction of 1,2-dibromodialumanes in the presence of [Pt(PCy3)2] also afforded the terminal arylalumylene complexes. DFT calculations suggest that the Al-Pt bonds in the arylalumylene complexes have a significantly high electrostatic character.

Original languageEnglish
Pages (from-to)3881-3884
Number of pages4
JournalAngewandte Chemie - International Edition
Volume53
Issue number15
DOIs
Publication statusPublished - 2014 Apr 7
Externally publishedYes

Keywords

  • aluminum
  • density functional calculations
  • metal-metal interactions
  • platinum
  • structure elucidation

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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