Preparation and structural characterization of [Ph3Sn(IV)] + complexes with pyridine-carboxylic acids or hydroxypyridine, -pyrimidine and -quinoline

Attila Szorcsik, László Nagy, Michelangelo Scopelliti, Andrea Deák, Lorenzo Pellerito, Gábor Galbács, Mónika Hered

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A number of [Ph3Sn(IV)]+ complexes formed with ligands containing -OH (-CO), or -COOH group(s) and aromatic {N} donor atom have been prepared. The binding sites of the ligands were identified by FT-IR spectroscopic measurements. In the complexes containing hydroxy and carboxylate functions, the carboxylato group is coordinated to the organotin(IV) centres in monodentate or bridging bidentate manner. It was also found that in the hydroxypyridine and -pyrimidine complexes the [Ph3Sn(IV)]+ moiety in most cases reacts with the phenolic form of the ligands. The rationalisation of the experimental 119Sn Mössbauer nuclear quadrupole splittings, |Δexp| - according to the point charge model formalism - together with the FT-IR data support the formation of trigonal bipyramidal (Tbp) or octahedral (Oh) molecular structures. Furthermore, X-ray diffraction analysis has been performed on the triphenyltin(IV)-3-phenolato-2(1H)-pyridinone-O,O′ single crystals. The penta-coordinated tin center exhibits a Tbp geometry. In case of 2-picolinic acid, a trans-phenylation was observed during the complexation, resulting [Ph2Sn(IV)]2+ complex and Ph4Sn(IV).

Original languageEnglish
Pages (from-to)1622-1630
Number of pages9
JournalJournal of Organometallic Chemistry
Issue number8
Publication statusPublished - Apr 1 2006



  • FT-IR
  • Hydroxypyridine, -pyrimidine and pyridinecarboxylato complexes
  • Mössbauer
  • Triphenyltin(IV)
  • X-ray diffraction

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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