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S-N-Se Ring Systems the basis of rather short contacts between the seLenium atoms in two adjacent thiodisetenazyl rings (see .). The . cation in . has slightly asymmetric interactions between the two thiodiselenazyl rings and does not have crystallographic inversion symmetry. The diseLenide bonds i竞选运动 发表于 2025-3-22 05:31:40
S-N-P Ring Systemspurified by sublimation. The structure was not investigated. The existence of the four-membered SN2P ring in a ca. 50:50 mixture of the isomeric cis and trans forms is assumed. M.p. 42 to 51°C, b.p. 84 to 86°C/0.01 Torr.Firefly 发表于 2025-3-22 09:49:42
S-N-Pb Ring Systems1904. The ring in both compounds is planar within limits of error, and can be described as consisting of Pb bound to an S.N. chelate group. In S.N.Pb-NH. the NH. molecule is bound to Pb perpendicularly to the plane of the ring. In general the ring is formed from S.N. reacting with Pb salts in ammoni产生 发表于 2025-3-22 16:14:18
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Gmelin Handbook of Inorganic and Organometallic Chemistry - 8th editionhttp://image.papertrans.cn/s/image/860002.jpgEosinophils 发表于 2025-3-22 23:23:13
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S-N-O Ring SystemsDerivatives of 1,2λ., 4λ., 3-Oxadithiazetidine 2-Oxide Ion (1+).