Dispersion-Driven Hydrogen Bonding: Predicted Hydrogen Bond between Water and Platinum(II) Identified by Neutron Diffraction
| Autor: | Jiří Kozelka, Alberto Albinati, Sax A. Mason, Jacqueline Bergès, Silvia Rizzato |
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| Rok vydání: | 2010 |
| Předmět: |
Hydrogen bond
010405 organic chemistry Neutron diffraction chemistry.chemical_element Aquation General Chemistry General Medicine 010402 general chemistry 01 natural sciences Catalysis 0104 chemical sciences Metal Crystallography chemistry visual_art X-ray crystallography visual_art.visual_art_medium Molecule Solvolysis Platinum |
| Zdroj: | Angewandte Chemie. 122:7602-7605 |
| ISSN: | 0044-8249 |
| Popis: | We report here the first crystallographic evidence for a hydrogen-bonding-like interaction between a water molecule and a d8 metal ion, based on neutron diffraction. According to our HF and MP2 calculations, the interaction is almost entirely dispersion-driven and thus represents a limiting case of hydrogen bonding. We speculate that for square-planar d8 metal complexes of zero or negative charge, such hydrogen bonding with water molecules might affect the solvolysis mechanism and be at the origin of anomalously slow aquation rate constants previously reported for some PtII complexes. |
| Databáze: | OpenAIRE |
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