Chalkogeniranes and Chalkogenirenes in the S and Se series - the follow-up chemistry of Chalkogeniranium and Chalkogenirenium salts

• Applicant: Dr. Helmut Poleschner
• Subject Area: Inorganic Molecular Chemistry - Synthesis and Characterisation
• Term: from 2014 to 2018
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 251393807

There are new synthetic routes for the highly unstable selenium Irane and Thiirene from Seleniranium and Thiireniumsalzen designed. The uncharged three-membered compounds to be produced by cleavage of Me3SiCH2CH2- or tBuMe2SiCH2CH2 protecting group on the Se or S atom of the three-membered Seleniranium or Thiirenium salts. For steric protection of the unstable target molecules the syntheses with bulky substituted olefins or acetylenes are done. New compounds are characterized by NMR spectroscopy and X-ray structural analysis.

• DFG Programme: Research Grants