Synthesis and characterisation of new pyrazole–phosphinite ligands and their ruthenium(II) arene complexes
| Autor: | Joan F. Piniella, Josefina Pons, Angel Alvarez-Larena, Sergi Muñoz, Josep Ros, Ramón Yáñez, Rosa Tribó |
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| Rok vydání: | 2005 |
| Předmět: |
Denticity
Phosphinite Stereochemistry Ligand Organic Chemistry chemistry.chemical_element Pyrazole Biochemistry Medicinal chemistry Single Crystal Diffraction Ruthenium Inorganic Chemistry Metal chemistry.chemical_compound chemistry visual_art Materials Chemistry visual_art.visual_art_medium Physical and Theoretical Chemistry Benzene |
| Zdroj: | Journal of Organometallic Chemistry. 690:4072-4079 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2005.05.047 |
| Popis: | The new potentially bidentate pyrazole–phosphinite ligands [(3,5-dimethyl-1H-pyrazol-1-yl)methyl diphenylphosphinite] (L1) and [2-(3,5-dimethyl-1H-pyrazol-1-yl)ethyl diphenylphosphinite] (L2) were synthesised and characterised. The reaction of L1 and L2 with the dimeric complexes [Ru(η6-arene)Cl2]2 (arene = p-cymene, benzene) led to the formation of neutral complexes [Ru(η6-arene)Cl2(L)] (L = L1, L2) where the pyrazole–phosphinite ligand is κ1-P coordinated to the metal. The subsequent reaction of these complexes with NaBPh4 or NaBF4 produced the [Ru(η6-p-cymene)Cl(L2)][BPh4] and [Ru(η6-benzene)Cl(L2)][BF4] compounds which contain the pyrazole–phosphinite ligand κ2-P,N bonded to ruthenium. All the complexes were fully characterised by analytical and spectroscopic methods. The structure of the complex [Ru(η6-p-cymene)Cl(L2)][BPh4] was also determined by a X-ray single crystal diffraction study. |
| Databáze: | OpenAIRE |
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