Cationic Ti(IV) and neutral Ti(III) titanocene-phosphinoaryloxide frustrated Lewis pairs: hydrogen activation and catalytic amine-borane dehydrogenation

Andy M. Chapman, Duncan F. Wass*

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

46 Citations (Scopus)

Abstract

Titanium-phosphorus frustrated Lewis pairs (FLPs) based on titanocene-phosphinoaryloxide complexes have been synthesised. The cationic titanium(IV) complex [Cp2TiOC6H4P(Bu-t)(2)][B(C6F5)(4)](2) reacts with hydrogen to yield the reduced titanium(III) complex [Cp2TiOC6H4PH(Bu-t)(2)][B(C6F5)(4)] 5. The titanium(III)-phosphorus FLP [Cp2TiOC6H4P(Bu-t)(2)] 6 has been synthesised either by chemical reduction of [Cp2Ti(Cl)OC6H4P(Bu-t)(2)] 1 with [CoCp*(2)] or by reaction of [Cp2Ti{N(SiMe3)(2)}] with 2-C6H4(OH){P(Bu-t)(2)}. Both 2 and 6 catalyse the dehydrogenation of Me2HN center dot BH3.

Original languageEnglish
Pages (from-to)9067-9072
Number of pages6
JournalDalton Transactions
Volume41
Issue number30
DOIs
Publication statusPublished - 2012

Keywords

  • METAL-FREE
  • ROOM-TEMPERATURE
  • PI-DONATION
  • COMPLEXES
  • REACTIVITY
  • TITANIUM
  • POLYMERIZATION
  • CHEMISTRY
  • CLEAVAGE
  • DIMERS

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