Syntheses and Crystal Structures of [ClPh₂Sn{E(Ph₂SN)₂}] (E = CH, N)

Abstract

Reaction of lithium salts, Li{E(SPh₂N)₂ } (E = CH (1⁻ ), N(2⁻ )) with diphenyltin dichloride in THF at –20 °C gave the corresponding tin-complexes [ClPh₂Sn{E(Ph₂SN)₂}] (E = CH (3), N (4)) in good yields. The crystal structures of both compounds were determined by X-ray crystallographic analysis and showed to consist with a monomeric chelate structure that contains a distorted trigonal bipyramidal tin atom with a nitrogen and a chlorine atom in the axial sites. The chelated ligands in 3 and 4 adopt a boat and a twist boat conformation, respectively.

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Keyword:

• λ⁶-Sulfanenitrile
• organotin compounds
• sulfonium diketimide analogues
• X-ray crystallographic analysis

Acknowledgments

Dedicated to Professor Naomichi Furukawa on the occasion of his 70th birthday. This work was partially supported by a Grants-in-Aid for Scientific Research (No. 16750030 and 19550051) from the Ministry of Education, Culture, Sports, Science and Technology of Japan, and also supported by a grant from High Technology Research Center, College of Industrial Technology, Nihon University.