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Cationic cobaltammine as anion receptor: Synthesis, characterization, single crystal X-ray structure and packing analysis of hexaamminecobalt(III) chloride (R,R)-tartrate monohydrate

Authors
Journal
Journal of Molecular Structure
0022-2860
Publisher
Elsevier
Publication Date
Volume
830
Identifiers
DOI: 10.1016/j.molstruc.2006.06.024
Keywords
  • Anion Receptor
  • Cobalt(Iii)
  • Inorganic Synthesis
  • Second Sphere Coordination
  • X-Ray Crystallography

Abstract

Abstract In an effort to utilize the [Co(NH 3) 6] 3+ cation as a new anion receptor (binding agent) for dihydroxy dicarboxylate anion i.e., tartrate, orange single crystals of hexaamminecobalt(III) chloride ( R, R)-tartrate monohydrate, [Co(NH 3) 6]Cl(C 4H 4O 6)·H 2O, were obtained by reacting hexaamminecobalt(III) chloride with potassium–sodium tartrate tetrahydrate in a 1:1 molar ratio in hot water. The single crystal X-ray structure determination of [Co(NH 3) 6]Cl(C 4H 4O 6)·H 2O revealed that a distinctive network of hydrogen bonding interactions (N–H⋯O, N–H⋯Cl −, O–H⋯O) stabilize the crystal lattice. This is the first complex salt of hexaamminecobalt(III) with dihydroxy dicarboxylate anion i.e., tartrate.

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