Polymeric strontium ranelate nonahydrate

Kenny Stahl, Christian G. Frankaer, Anders C. Raffalt, Sren R. Srensen, Jens E T Andersen

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Abstract

The title compound,poly[[μ-aqua-tetra-aqua{μ-5-[bis- (carboxylatomethyl)amino]-3-carboxylatomethyl-4-cyano-thio-phene-2-carboxylato} distrontium(II)] tetrahydrate],[Sr 2(C 12H 6N 2O 8S)(H 2O)5]·3.79H 2O, crystallizes with nine- and eight-coordinated Sr 2+ cations. They are bound to seven of the eight ranelate O atoms and five of the water molecules. The SrO 8 and SrO 9 polyhedra are inter-connected by edge-sharing, forming hollow layers parallel to (011). The layers are, in turn, inter-connected by ranelate anions, forming a metal-organic framework (MOF) structure with channels along the a axis. The four water molecules not coordinated to strontium are located in these channels and hydrogen bonded to each other and to the ranelates. Part of the water H atoms are disordered. The compound dehydrates very easily and 0.210 (4) water molecules out of nine were lost during crystal mounting causing additional disorder in the water structure.

Original languageEnglish
JournalActa Crystallographica Section E: Structure Reports Online
Volume67
Issue number4
DOIs
Publication statusPublished - Apr 1 2011

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All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Materials Science(all)
  • Chemistry(all)

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