Abstract
The syntheses, physical, spectroscopic characterizations and crystal structures of [Co(phen)(2)CO3]ClO3, [Co(phen)(2)CO3]BrO3 center dot 3.5H(2)O and [Co(phen)(2)CO3]IO4 are described (phen = 1,10-phenanthroline, C12H8N2). The crystal structures feature "synergistic" directional bonding interactions including cation-to-anion C-H center dot center dot center dot O(anion) bonds and anion-to-cation Cl center dot center dot center dot pi and I-O center dot center dot center dot pi bonds, as well as cation-to-cation C-H center dot center dot center dot O(carbonato) and pi - pi stacking interactions. The bromate structure also features distinctive O-H center dot center dot center dot O hydrogen bonding networks involving the water molecules. The facile formation of this series of complex salts with relatively small K-sp values suggests that the [Co(phen)(2)CO3](+) complex ion may be effective as a binding agent for oxo-anions containing halogen atoms(halates) in an aqueous environment. (C) 2011 Elsevier B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 82-89 |
Number of pages | 8 |
Journal | Journal of Molecular Structure |
Volume | 996 |
Issue number | 1-3 |
Early online date | 22 Apr 2011 |
DOIs | |
Publication status | Published - 14 Jun 2011 |
Keywords
- anion receptor
- cobalt(III)
- oxo-anions
- x-ray crystallography
- x-ray-structure
- 2nd sphere coordination
- weak-interactions
- packing analysis
- center-dot
- complexes
- receptors
- design
- ion