Synthesis, structure and theoretical studies of the hydrido inverse crown [K2Mg2(NiPr2)(4)(mu-H)(2)center dot(toluene)(2)]: a rare example of a molecular magnesium hydride with a Mg-(mu-H)(2)-Mg double bridge

P.C. Andrikopoulos, D.R. Armstrong, A.R. Kennedy, R.E. Mulvey, C.T. O'Hara, R.B. Rowlings

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58 Citations (Scopus)

Abstract

Reaction of benzylpotassium, n,s-dibutylmagnesium and diisopropylamine in boiling toluene produces a rare example of a molecular magnesium hydride with a Mg-(mu-H)(2)-Mg double bridge, in [K2Mg2(NiPr2)(4)(mu-H)(2).(toluene)(2)] (1). In an effort to rationalise the formation of 1, a series of DFT calculations were performed. This report of 1 establishes the first isostructural pair of Na and K complexes solvated by toluene to be reported in the Cambridge Crystallographic Database. In comparison with its previously reported Na analogue, 2, the metal-arene centroid distances are considerably shorter (by 0.159 Angstrom) in the new complex reported here. It was found that a hydrocarbon solution of 1 is capable of reducing benzophenone to benzhydrol in moderate yields (74%).
Original languageEnglish
Pages (from-to)3354-3362
Number of pages8
JournalEuropean Journal of Inorganic Chemistry
Volume2003
Issue number18
DOIs
Publication statusPublished - 26 Sep 2003

Keywords

  • potassium
  • magnesium
  • N ligands
  • hydride ligands
  • density functional calculations

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