Picture of a black hole

Strathclyde Open Access research that creates ripples...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of research papers by University of Strathclyde researchers, including by Strathclyde physicists involved in observing gravitational waves and black hole mergers as part of the Laser Interferometer Gravitational-Wave Observatory (LIGO) - but also other internationally significant research from the Department of Physics. Discover why Strathclyde's physics research is making ripples...

Strathprints also exposes world leading research from the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Solvent induced disproportionation of alkyl(amido)magnesium species containing a (2-pyridyl)amido unit : Synthetic, theoretical and NMR spectroscopic studies of bis(amido)magnesium compounds

Henderson, K.W. and Mulvey, Robert and Dorigo, A.E. (1996) Solvent induced disproportionation of alkyl(amido)magnesium species containing a (2-pyridyl)amido unit : Synthetic, theoretical and NMR spectroscopic studies of bis(amido)magnesium compounds. Journal of Organometallic Chemistry, 518 (1-2). pp. 139-146. ISSN 0022-328X

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

Reaction of R(2-pyr)NH (where R = Me, Ph or 2-pyr) with 'Bu(2)Mg' in an ether-free environment yields the corresponding alkyl(amido)magnesium derivative [{R(2-pyr)NMgBu}(n)]. When polar solvent is added to these species only bis(amido)magnesium compounds separate from solution and not the expected solvated alkyl(amido) derivatives. Isolation of one such alkyl(amido) compound prior to reaction with donor solvent proves that the mixed anion species do indeed exist, However, when polar molecules are introduced a disproportionation reaction ensues, yielding the homoleptic compounds [{R(2)Mg .(S)(x)}(n)] and [{(R(2)N)(2)Mg .(S)(x)}(n)], where S is THF, TMEDA or PMDETA. Theoretical calculations likewise show that the disproportionation reaction of model compounds closely related to our systems is strongly exothermic. A H-1/C-13 NMR spectroscopic study was used to assign the nature of the bis(amido) species in solution. From these analyses it was possible to propose that the solvated bis(amido) derivatives assume a common structural motif, that of a monomer (n = 1) with a pseudo-octahedral magnesium center.