Metal-organodiphosphonate chemistry: Hydrothermal syntheses and structures of Ca(II) coordination polymers with xylyldiphosphonate ligands

Valerie Lopez-Diaz, Tiffany M. Smith Pellizerri, Matthew D. Lijewski, Karin Ruhlandt, Jon Zubieta

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Hydrothermal reactions of Ca(NO3)2·4H2O and the appropriate xylyldiphosphonic acid provided crystals of [Ca(p-C8H8P2O6H2)(OH2)3]n (1), [Ca(m-C8H8P2O6H2)(OH2)2]n (2), and [Ca(o-C8H8P2O6H2)(OH2)]n (3). The juxtaposition of phosphonate donor groups on the xylyl-diphosphonate linkers is a major structural determinant. Thus, the structure of [Ca(p-C8H8P2O6H2)(OH2)3]n (1) is three dimensional, while [Ca(m-C8H8P2O6H2)(OH2)2]n (2) and [Ca(o-C8H8P2O6H2)(OH2)]n (3) exhibit reduced dimensionalities, one- and two-dimensional, respectively. The structures exhibit variable coordination numbers, as well as variable numbers of coordinated water molecules. In addition, hydrogen bonding plays an important role in the structural chemistry of these materials.

Original languageEnglish (US)
Pages (from-to)109-116
Number of pages8
JournalInorganica Chimica Acta
Volume441
DOIs
StatePublished - Feb 24 2016

Keywords

  • Calcium phosphonates
  • Coordination polymers
  • Hydrothermal reactions
  • X-ray structures

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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