Mixed inorganic-organic anion frameworks: synthesis and characterisation of [Mn4(PO4)2(C2O4)(H2O)2] and [H3N(CH2)3NH3][Mn2(HPO4)2(C2O4)(H2O)2]

ZAD Lethbridge, AD Hillier, R Cywinski, Philip Lightfoot

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

Two new three-dimensional manganese phosphate oxalate frameworks have been synthesized and their structures determined by single crystal X-ray diffraction. The compound [Mn-4(PO4)(2)(C2O4)(H2O)(2)] 1 is monoclinic, space group P2(1)/c, a=10.263(3), b=6.526(2), c=10.082(3) Angstrom and beta=116.84(2)degrees. MnO5 and MnO6 polyhedra share edges to form tetramers, which are further linked by PO4 tetrahedra to form layers in the bc plane. The layer, which contains an extended array of direct Mn-O-Mn linkages, is in turn linked to neighbouring layers by pillaring bisbidentate oxalate groups. Magnetisation measurements indicate antiferromagnetic interactions, and suggest that the material may be a two dimensional antiferromagnet. Thermogravimetric analysis shows the structure to be stable up to 240 degrees C. The compound [H3N(CH2)(3)NH3][Mn-2(HPO4)(2)(C2O4)(H2O)(2)] 2 is monoclinic, space group P2(1)/n, a=5.474(2), b=15.737(2), c=9.056(2) Angstrom, beta=93.47(3)degrees, and includes a disordered 1,3-diaminopropane dication in channels parallel to the a direction. In contrast to 1, no direct Mn-O-Mn linkages occur.

Original languageEnglish
Pages (from-to)1595-1599
Number of pages5
JournalJournal of the Chemical Society, Dalton Transactions
Issue number10
DOIs
Publication statusPublished - 2000

Keywords

  • CRYSTAL-STRUCTURE
  • COORDINATION FRAMEWORKS
  • HYDROTHERMAL SYNTHESIS
  • HYBRID MATERIALS
  • IRON PHOSPHATES
  • OXALATE
  • PHOSPHATOOXALATE

Fingerprint

Dive into the research topics of 'Mixed inorganic-organic anion frameworks: synthesis and characterisation of [Mn4(PO4)2(C2O4)(H2O)2] and [H3N(CH2)3NH3][Mn2(HPO4)2(C2O4)(H2O)2]'. Together they form a unique fingerprint.

Cite this