Various organotin compounds have been investigated as neutral carriers for anion selective electrodes 1-18 because they are attractive candidates for anion sensors with a selectivity sequence deviating from the one observed with classical anionexchanger membranes, [19][20][21][22] namely Hofmeister lyotropic anion selectivity sequence.
Novel polymer liquid membrane electrodes, in which the organotin compounds were fixed, were obtained by the reaction of PVC (poly(vinyl chloride)) with di-n-butyltin halide hydrides (nBu2SnYH, Y = F, Cl, I, Ome). The improved liquid membrane electrodes displayed good potential stability and non-Hofmeister selectivity patterns. Furthermore, the highest degree of selectivity for the SCN− ion was achieved.
Formation of 2,5-Diaryl-1,3-dithiolylium-4-olate in Thermal Reaction of 4-Aryl-1,3,2-oxathiazolylium-5-olate.-Thermolysis of the mesoionic oxathiazoles (I) in xylene yields 2,5-diaryl-1,3-dithiolylium-4-olatesII) via elimination of NO and CO. ( Radical mechanism). -(TONO, M.; AOTO, H.; MATSUDAIRA, Y.; SUGIYAMA, T.; KAJITANI, M.; AKIYAMA, T.; SUGIMORI, A.; Tetrahedron Lett. 32 (1991) 32, 4023-4026; Dep. Chem., Fac. Sci. Technol., Sophia Univ., Tokyo 102, Japan; EN)
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