Structural similarity in a series of alkali metal aluminates with heteroleptic t-butoxide – iso-butyl ligand sets

Research output: Contribution to journalArticle

Abstract

With the aim of increasing the number of well-defined alkali metal aluminates, six new crystalline examples containing heteroleptic tert-butoxide – isobutyl ligand sets are reported. NMR spectroscopic studies in C 6D 6 solution have determined their common general formula [(iBu) 2Al(OtBu) 2AM·(D)], where AM = Li, D = 2 THF, TMEDA or PMDETA; AM = Na, D = TMEDA or PMDETA; and AM = K, D = PMDETA. X-ray crystallographic studies show that despite the different sized alkali metals involved all six complexes adopt a common dinuclear motif with [AlO(AM)O] ring cores. Though Al–OtBu–Li linkages are common, the heavier alkali metal examples reported here are exceptionally rare. These structures could be interpreted as co-complexes between monomeric forms of tBuO(AM) and (iBu) 2Al(OtBu).

Original languageEnglish
Pages (from-to)2912-2918
Number of pages7
JournalEuropean Journal of Inorganic Chemistry
Volume2020
Issue number30
Early online date4 Jun 2020
DOIs
Publication statusPublished - 16 Aug 2020

Keywords

  • alkali metals
  • aluminium
  • ate compounds
  • heterobimetallics
  • solid state structures

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