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Selective crystallization of di-sec-butylmagnesium. N,N,N',N'-tetramethylethylenediamine from solutions containing mixtures of normal-butyl and secondary-butyl isomers

Barnett, N.D.R. and Clegg, W. and Mulvey, Robert and O'Neil, P.A. and Reed, D. (1996) Selective crystallization of di-sec-butylmagnesium. N,N,N',N'-tetramethylethylenediamine from solutions containing mixtures of normal-butyl and secondary-butyl isomers. Journal of Organometallic Chemistry, 510 (1-2). pp. 297-300. ISSN 0022-328X

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Abstract

Found to crystallise selectively from treatment of commercial (s)Bu((n)Bu)Mg solutions with N,N,N',N'-tetramethylethylenediamine (TMEDA), the complex ((s)Bu(2)Mg . TMEDA) is mononuclear in the crystal state and undergoes a solvation-desolvation equilibrium in arene solution. The crystal structure is noteworthy for the large C-Mg-C bond angle of 133.6(2)degrees, attributable to the branched nature of the alkyl substituents. This angular distortion is thought to encourage the partial loss of TMEDA from Mg centres in solution.

Item type: Article
ID code: 38168
Keywords: magnesium, sec butyl, crystal structure, nuclear magnetic resonance, organomagnesium, RAY, Chemistry, Materials Chemistry, Biochemistry, Organic Chemistry, Physical and Theoretical Chemistry, Inorganic Chemistry
Subjects: Science > Chemistry
Department: Faculty of Science > Pure and Applied Chemistry
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 05 Mar 2012 16:32
    Last modified: 05 Sep 2014 15:22
    URI: http://strathprints.strath.ac.uk/id/eprint/38168

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