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Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Isolation and solution structures of {PhCH2NLiCH2CH2NMe2} n and of the totally rigid dilithium compound, {o-LiC6H4CH2NLiCH2CH2NMe2} n ; evidence for Li…o-HC interactions

BARR, D and SNAITH, R and WRIGHT, D S and Mulvey, Robert and JEFFREY, K and REED, D (1987) Isolation and solution structures of {PhCH2NLiCH2CH2NMe2} n and of the totally rigid dilithium compound, {o-LiC6H4CH2NLiCH2CH2NMe2} n ; evidence for Li…o-HC interactions. Journal of Organometallic Chemistry, 325 (1-2). C1-C6. ISSN 0022-328X

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Abstract

Monolithiation of N′-benzyl-N,N-dimethylethylenediamine produces {PhCH2NLiCH2CH2NMe2} n , believed to have a trimeric (NLi)3 ring structure in arene solutions. Lithium…o-HC interactions are implicated within this monolithiated compound since further lithiation proceeds smoothly and regiospecifically to give {o-LiC6H4CH2NLiCH2CH2NMe2} n . High-field 1H and 7Li NMR spectra show that this dilithium derivative (probably tetrameric) has a totally rigid solution structure brought about by intra- and inter-molecular N → Li coordinations.