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Second-sphere coordination in hexaamminecobalt(III) salt with organic sulphonate anion: Synthesis, characterisation and X-ray crystal structure of [Co(NH3)6](CH3SO3)3 |
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| Authors: | Ritu Bala Raj Pal Sharma Andrew D Bond |
| Institution: | aDepartment of Chemistry, Panjab University, Chandigarh 160014, India bDepartment of Physics and Chemistry, University of Southern Denmark, 5230 Odense M, Denmark |
| Abstract: | Reaction of hexaamminecobalt(III) chloride with the silver salt of methanesulphonic acid in aqueous medium (1:3 molar ratio) forms hexaamminecobalt(III) methanesulphonate, Co(NH3)6](CH3SO3)3, in high yield. This cobalt(III) complex has been characterized by spectroscopic techniques (UV/visible, IR and NMR) and its solubility product determined. The X-ray crystal structure shows that the Co(NH3)6]3+ cations interact at the second sphere by sharing edges with the  O hydrogen bonds. The structure is related to that of Co(NH3)6]Cl(CH3SO3)2, but is modified to accommodate additional |
| Keywords: | Hexaamminecobalt(III) Coordination chemistry Second-sphere coordination Supramolecular chemistry X-ray crystallography |
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