Synthetic and structural investigations of alkali metal diamine bis(phenolate) complexes

W. Clegg, M.G. Davidson, D.V. Graham, G. Griffen, M.D. Jones, A.R. Kennedy, C.T. O'Hara, L. Russo

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27 Citations (Scopus)

Abstract

Two lithium and one sodium diamine bis(phenolate) complexes have been prepared and characterised by X-ray crystallography and NMR spectroscopy. Two parent diamine bis(phenol) ligands were utilised in the study (1-H2 and 2-H2). Dimeric (1-Li2)2 was prepared by treating 1-H2 with two molar equivalents of n-butyllithium in hydrocarbon solvent. It adopts a ladder-like structure in the solid state, which appears to deaggregate in C6D6 solution. The monomeric (hence, dinuclear) TMEDA-solvated species [2-Li2·(TMEDA)] has two chemically unique Li atoms in the solid state and is prepared by reacting 2-H2 with two molar equivalents of n-butyllithium in hydrocarbon solvent, in the presence of N,N,N′,N′-tetramethylethylenediamine (TMEDA). Finally, the dimeric sodium-based [2-Na2·(OEt2)]2 was prepared by reacting 2-H2 with two molar equivalents of freshly prepared n-butylsodium in a hydrocarbon-diethyl ether medium. The complex adopts a Na4O4 cuboidal structure in the solid state, which appears to remain intact in C6D6 solution. (Abstract from: http://www.swetswise.com/eAccess/viewAbstract.do?articleID=35973844)
Original languageEnglish
Pages (from-to)1295-1301
Number of pages6
JournalDalton Transactions
Issue number10
Publication statusPublished - 2008

Keywords

  • synthetic
  • structural
  • investigations
  • alkali metal diamine bis(phenolate) complexes

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