Picture of boy being examining by doctor at a tuberculosis sanatorium

Understanding our future through Open Access research about our past...

Strathprints makes available scholarly Open Access content by researchers in the Centre for the Social History of Health & Healthcare (CSHHH), based within the School of Humanities, and considered Scotland's leading centre for the history of health and medicine.

Research at CSHHH explores the modern world since 1800 in locations as diverse as the UK, Asia, Africa, North America, and Europe. Areas of specialism include contraception and sexuality; family health and medical services; occupational health and medicine; disability; the history of psychiatry; conflict and warfare; and, drugs, pharmaceuticals and intoxicants.

Explore the Open Access research of the Centre for the Social History of Health and Healthcare. Or explore all of Strathclyde's Open Access research...

Image: Heart of England NHS Foundation Trust. Wellcome Collection - CC-BY.

Magnesium aryloxides: synthesis, structure, solution behavior and magnesiate ion formation

Henderson, K.W. and Honeyman, G.W. and Kennedy, A.R. and Mulvey, R.E. and Parkinson, J.A. and Sherrington, D.C. (2003) Magnesium aryloxides: synthesis, structure, solution behavior and magnesiate ion formation. Dalton Transactions, 2003 (7). pp. 1365-1372. ISSN 1477-9234

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

Abstract

The heteroleptic magnesium complexes [{Ar'OMgBu}(2)] 1 and [{Ar'OMgN(i-Pr)(2)}(2)] 2, where OAr' = 2,6-di-tertbutylphenoxy, have been prepared and found to be dimeric in the solid state, with tri-coordinate metal centers. Complex 1 utilizes the aryloxide anions as bridging groups whereas the amido anions connect the metals in 2. Addition of THF or TMEDA to hydrocarbon solutions containing 2 results in disproportionation and the exclusive precipitation of the homoleptic, solvated, complexes [Mg(OAr')(2).2THF] 3 or [Mg(OAr')(2).TMEDA] 4. Both 3 and 4 are monomeric in the solid state with tetra-coordinate magnesium centers. Solution NMR spectroscopic studies of 1 and 2 reveal that disproportionation to the homoleptic complexes is promoted in THF-d(8) but that the main component still appears to be the heteroleptic species. Dissolution of the unsolvated dimeric complex [Mg(OAr')(2)] 5 in THF-d(8) results in partial formation of the magnesiate complex [Ar'OMg](+)[(Ar'O)(3)Mg](-)10, along with the monomer 3. In contrast, no magnesiate is formed on dissolution of 3 in THF-d(8), indicating that magnesiate formation most likely proceeds via unsymmetrical cleavage of the dimer. Ab initio calculations (HF/6-31G*) have been used to investigate the possible structures of the magnesiate species.