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

Ritu Bala, Raj Pal Sharma, Paloth Venugopalan, William T. A. Harrison

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


In an effort to utilize the [Co(NH3)(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(NH3)(6)]Cl(C4H4O6)center dot H2O, 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(NH3)(6)]Cl(Cl4H4O6)center dot H2O revealed that a distinctive network of hydrogen bonding interactions (N-H center dot center dot center dot O, N-H center dot center dot center dot Cl-, O-H center dot center dot center dot O) stabilize the crystal lattice. This is the first complex salt of hexaamminecobalt(III) with dihydroxy dicarboxylate anion i.e., tartrate. (c) 2006 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)813
Number of pages6
JournalJournal of Molecular Structure
Issue number1-3
Early online date10 Aug 2006
Publication statusPublished - 30 Mar 2007


  • anion receptor
  • cobalt(III)
  • inorganic synthesis
  • second sphere coordination
  • X-ray crystallography
  • 2nd-sphere coordination
  • convenient synthesis
  • tartrate trihydrate
  • binding
  • complex
  • selectivity
  • phosphate
  • salt

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