Equilibria involved in the diorganotin(IV) and triorganotin(IV) phosphomycin interaction in aqueous solution

Tiziana Fiore, Lorenzo Pellerito, Michelangelo Scopelliti, Girolamo Casella, Claudia Pellerito, Mahmoud M. A. Mohamed, Silvio Sammartano, László Nagy, Sergio Sammartano

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Four new diorganotin(IV), (R = Me, Bu), and triorganotin(IV), (R = Me, Ph), derivatives of the phosphomycin disodium saltantibiotic[(1R,2S)-1,2-epoxypropylphosphonate]Na2 have been synthesized and their solid state configuration studied by X-ray crystallography,FT-IR, Mossbauer, UV–Vis spectroscopies. The X-ray diffraction investigation, performed on the bis[trimethyltin(IV)]-phosphomycin, showed that the coordination geometry at all the Sn atoms is trigonal bipyramidal. The structure of the complex formsan unusual polymeric zig-zag planar network. The FT-IR and the 119Sn Mo¨ssbauer studies supported the formation of trigonal bipyramidal(Tbp) molecular structures, both in the diorganotin(IV) and triorganotin(IV) derivatives, even if, in the case of diorganotin(IV)derivatives, the tetrahedral structure cannot be a priori excluded. The PO32 group of phosphomycin coordinates the organotin(IV) centersoriginating a monodimensional polymeric network, as inferred by variable temperature 119Sn Mo¨ssbauer spectroscopy, used toinvestigate lattice dynamics of the bis-[trimethyltin(IV)]phosphomycin complex.
Original languageEnglish
Pages (from-to)455-461
Number of pages7
JournalApplied Organometallic Chemistry
Volume21(6)
Publication statusPublished - 2007

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Inorganic Chemistry

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