Reaction of [SNS][AsF6] with Hg(CN)2 and PhHgCN: Preparation and crystal structures of [Hg()2][AsF6]2 and [PhS4N3Ph][AsF6]

Chapter 7. Oxygen, sulfur, selenium and tellurium

“…A similar reaction with SF,(CN) generates F,SCNSNS (which contains the 1,3,2,4-dithiadiazoIyI unit and which may be reduced to a radical species by triphenylantimony),21 while Hg(CN), gives [Hg(CNSNS),]' +, the first example of a rnetalladithiadiazolylium saIt. 22 The isomerisation of RCNSNS' radicals has been studied, leading to the conclusion that dimer formation followed by photochemical symmetry-allowed rearrangement results in the formation of RCNSSN.23 The latter class of compound has been the subject of much interest from the point of view of the novel solid-state properties they can exhibit. Thus, p-NCC,F,(CNSSN) has been shown to be the first main-group radical to exhibit spontaneous magnetisation above liquid helium temperature (36 K), 24 while the (CNSSN)," diradica1 (formed when the product of N,N'-diaminooxamidine and excess SCI, is reduced with [SbPh,]) forms a metallically conducting charge-transfer salt with iodine.z5 Finally, the properties of salts of the related species (CNSSS),"'.…”

A Synthesis of Thiopyran Pyridinium Perchlorate Compounds

“…Synthesis 1, 2, 4, 6-tetra phenyl thiopyran benzene from reaction 2, 4, 6-Tri phenyl thiopyrylium with PhLi. (9)(10)(11)(12) . Airm of the work asynthesis of thiopyrran pyridinium perchlorate compounds and studying of biological evaluation.…”