Synthesis, characterization, and hydrolytic behavior of diorganotin(IV) coordination polymers with layered structural motifs

Ravi Shankar, Nisha Singla, Swati Mendiratta, Gabriele Kociok-Kohn, Kieran C. Molloy, Pavletta Shestakova

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3 Citations (Scopus)

Abstract

The synthesis and structural characterization of the layered diorganotin coordination polymers nBu2Sn(HL)(OSO2Me) (1) and nBu2Sn(HL1)(OSO2Me) (2) derived from the silaalkylphosphonic acids RR12Si(CH2)3P(O)(OH)2 [R = Ph, R1 = Me (H2L); R = R1 = Et (H2L1)] are presented. The structure of H2L exhibits O-H···O hydrogen bonding and π-π interactions to form a unique three-dimensional supramolecular assembly in the solid state. The asymmetric units of 1 and 2 are composed of centrosymmetric eight-membered [-Sn-O-P-O-]2 cyclic rings with appended sulfonate groups, which provide layered connectivity to the structures. For 1, the presence of C-H···π interactions between the dangling phenyl rings of the silaalkyl chains favors a lamellar arrangement with an interlayer spacing of 16.9 Å. Upon exposure to humid conditions, these polymers undergo slow transformation to nBu2Sn[O3P(CH2)3SiRR12] with the elimination of methanesulfonic acid.

Original languageEnglish
Pages (from-to)5118-5123
Number of pages6
JournalEuropean Journal of Inorganic Chemistry
Volume2015
Issue number30
Early online date1 Oct 2015
DOIs
Publication statusPublished - Oct 2015

Keywords

  • Lamellar structures
  • Layered compounds
  • Phosphonates
  • Silicon
  • Stannanes
  • Structure elucidation
  • Sulfonates
  • Tin

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