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.

''Potassium potassates'' based on dihydrotriazinide ligands: syntheses, crystal structures, and comparison with other alkali metal dihydrotriazinide compounds

Clegg, W and Elsegood, M R J and Horsburgh, L and Mulvey, Robert and Ross, M J (1997) ''Potassium potassates'' based on dihydrotriazinide ligands: syntheses, crystal structures, and comparison with other alkali metal dihydrotriazinide compounds. Chemische berichte, 130 (5). pp. 621-631. ISSN 0009-2940

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

Abstract

A series of dihydro-s-triazinidopotassium complexes have been synthesised and structurally characterised by X-ray diffraction. Two of them, the sesqui-pyridine solvate 2 and the mono-THF solvate 3, can be classified in formal terms as ''potassium potassates'' in conforming to the structural pattern established previously for the sesqui-THF solvate 1, the first reported 'ate of this type. Formally complex [(R2K)(-)] anions are linked to K+ cations in polymeric, zig-zag chain arrangements. Solvate 3 also possesses a unique RK coordination as a direct result of having fewer solvent Ligands. DMSO analogue 4 deviates from this uniformity in adopting a centrosymmetric, dimeric (OK)(2) ring structure featuring both terminal and bridging DMSO ligands. The dihydro-s-triazinidosodium tris(THF) solvate 5 is found to be a monomer. For comparative purposes, the metal-free, parent triazine molecule 6 has also been subjected to an X-ray crystallographic study: it displays a 1,2-dihydro ring setup as opposed to the 1,4-dihydro alternative existing in the metallo examples. Triazine 6 is also found to form a N-H ... Br bridge in the dimeric structure of the lithium bromide bis (THF) solvate 7, a suspected hydrolysis product from the reaction of dihydro-s-triazinidolithium 8 and magnesium bromide bis(ether) adduct.