First structurally characterised lithium hexafluorophosphate complexes with acyclic Lewis bases: Ion-separated [Li2(hmpa)5] 2+·2(PF6-) and ion-contacted [(pmdeta)LiPF6]2 [hmpa = (Me2N)3PO; pmdeta = MeN(CH2CH2NMe2)2]

David R. Armstrong, Amit H. Khandelwal, Lesley C. Kerr, Sonja Peasey, Paul R. Raithby, Gregory P. Shields, Ronald Snaith, Dominic S. Wright

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

Reactions of NH4PF6 with BunLi in toluene containing hmpa or pmdeta afford the complexes [Li2-(hmpa)5]2+·2(PF6) - 1, an ion-separated species containing an unusual dinuclear dication, and [(pmdeta)LiPF6]2 2 in which PF6- anions bridge (pmdeta)Li+ units via Li⋯F interactions, this being the first observation of a bridging mode for this anion; ab initio MO calculations help explain the very different structures of 1 and 2.

Original languageEnglish
Pages (from-to)1011-1012
Number of pages2
JournalChemical Communications
Issue number9
DOIs
Publication statusPublished - 7 May 1998

ASJC Scopus subject areas

  • Catalysis
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Chemistry(all)
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Fingerprint Dive into the research topics of 'First structurally characterised lithium hexafluorophosphate complexes with acyclic Lewis bases: Ion-separated [Li<sub>2</sub>(hmpa)<sub>5</sub>] <sup>2+</sup>·2(PF<sub>6</sub><sup>-</sup>) and ion-contacted [(pmdeta)LiPF<sub>6</sub>]<sub>2</sub> [hmpa = (Me<sub>2</sub>N)<sub>3</sub>PO; pmdeta = MeN(CH<sub>2</sub>CH<sub>2</sub>NMe<sub>2</sub>)<sub>2</sub>]'. Together they form a unique fingerprint.

Cite this