Three model structural types in lithium amide chemistry: the crystal and molecular structures of dimeric [Ph(Me)NLi·TMEDA]2(TMEDA = Me2NCH2CH2NMe2) and monomeric Ph(naphthyl)NLi·PMDETA [PMDETA = MeN(CH2CH2NMe2)2], and of [Ph(naphthyl)NLi·TMEDA]2, a ‘loose dimer’

BARR, D and CLEGG, W and Mulvey, Robert and SNAITH, R and WRIGHT, D S (1987) Three model structural types in lithium amide chemistry: the crystal and molecular structures of dimeric [Ph(Me)NLi·TMEDA]2(TMEDA = Me2NCH2CH2NMe2) and monomeric Ph(naphthyl)NLi·PMDETA [PMDETA = MeN(CH2CH2NMe2)2], and of [Ph(naphthyl)NLi·TMEDA]2, a ‘loose dimer’. Journal of the Chemical Society, Chemical Communications (10). pp. 716-718. ISSN 0022-4936 (https://doi.org/10.1039/C39870000716)

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Abstract

The crystal structures of three amidolithium complexes are reported, those of [Ph(Me)NLi·TMEDA]2(TMEDA = Me2NCH2CH2NMe2), (1), and Ph(naphthyl)NLi·PMDETA [PMDETA = MeN(CH2CH2NMe2)2], (2), whose Li atoms are all four-co-ordinate, confirming predicted structural types, while a new structural option is found for [Ph(naphthyl)NLi·TMEDA]n, (3), whose monomeric (n= 1) moolecules, each containing a three-co-ordinate Li atom, are prompted to associate looselyin pairs (n= 2)via intermolecular Li phenyl interactions.

ORCID iDs

BARR, D, CLEGG, W, Mulvey, Robert ORCID logoORCID: https://orcid.org/0000-0002-1015-2564, SNAITH, R and WRIGHT, D S;
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