Alane- and gallane-sulfur donor chemistry: Synthesis of AlH3·NMe(CH2CH2)2S, {AlH2[μ-N(CH2CH2)2S]}2 and MH(SCH2CH2NEt2)2 (M = Al or Ga)

Cameron Jones, Fu Chin Lee, George A. Koutsantonis, Michael G. Gardiner, Colin L. Raston

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30 Citations (Scopus)

Abstract

Reaction of N-methylthiomorpholine hydroiodide with LiAlH4 in OEt2 yielded the Lewis-base adduct of alane, AlH3·NMe(CH2CH2)2S 1, which is monomeric in benzene as the N-donor species. Thiomorpholine with H3Al·NMe3 also in OEt2 afforded the metallated species {AlH2[μ-N(CH2CH2)2S]}2 2; in the solid-state dimers arising from bridging amido centres are weakly associated via intermolecular Al ⋯ S interactions at 3.22(3) Å. Treatment of 2-diethylaminoethanethiol hydrochloride with LiMH4 (M = Al or Ga) in OEt2 or tetrahydrofuran generated the five-co-ordinate species MH(SCH2CH2NEt2)2 (M = Al 3 or Ga 4), authenticated by X-ray crystallography as isostructural, chiral five-co-ordinate species in the solid, the N-donor groups occupying apical positions of trigonal-bipyramidal metal centres.

Original languageEnglish
Pages (from-to)829-833
Number of pages5
JournalJournal of the Chemical Society - Dalton Transactions
Issue number6
DOIs
Publication statusPublished - 21 Mar 1996
Externally publishedYes

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