Organic-inorganic hybrid materials of the copper molybdate family. Syntheses and structures of [Cu(tpa)Mo2O7], [Cu(Me 2bpy)Mo2O7]

Randy S. Rarig, Lindsey Bewley, Eric Burkholder, Jon Zubieta

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26 Scopus citations

Abstract

The hydrothermal reactions of CuSO4 · 5H2O and MoO3 in the presence of various sterically hindered polypyridyl ligands have been studied. Under basic conditions, [Cu(tpa)Mo2O 7](1) and [Cu(Me2bpy)Mo2O7](2) are formed, while under mildly acidic conditions, [Cu(t-Bu2bpy)Mo 4O13](4) is the product. The structures of 1 and 2 are grossly similar in that both are constructed from molybdate chains decorated with secondary metal-ligand coordination cation subunits. In the case of 1, the molybdate chain consists of alternating pairs of edge-sharing octahedra and square pyramids, while for 2, the chain exhibits corner-sharing octahedra with peripheral tetrahedral sites. The profound structural influences of hydrothermal reaction conditions such as pH are dramatically illustrated by the structure of 4 which consists of octamolybdate clusters linked through binuclear {Cu2(t-Bu2bpy)2}4+ sites.

Original languageEnglish (US)
Pages (from-to)2235-2243
Number of pages9
JournalIndian Journal of Chemistry - Section A Inorganic, Physical, Theoretical and Analytical Chemistry
Volume42
Issue number9
StatePublished - Sep 1 2003

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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