Heteroscorpionate Ligands Based on Bis(pyrazol-1-yl)methane: Design and Coordination Chemistry
β Scribed by A. Otero; J. Fernandez-Baeza; A. Antinolo; J. Tejeda; A. Lara-Sanchez
- Publisher
- John Wiley and Sons
- Year
- 2004
- Weight
- 10 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0931-7597
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## Abstract Modification of the multistep synthesis of the previously described bis[5β(diphenylphosphanyl)pyrazolβ1βyl)]methane (bppzm, 1) produces the novel diphosphane (diphenylphosphanyl)β[5β(diphenylphosphanyl)pyrazolβ1βyl](pyrazolβ1βyl)methane (p4m, 2). Treatment of this ligand with [MCl~2~(Ph
The chlorine functions of CH 3 C(CH 2 Cl) 3 , 1, may be replaced involved in intramolecular hydrogen bonding to the CH 2 OH function (Nβ’β’β’H-O distance 280 pm). Blocking of the OH by pyrazolyl (pz) as well as imidazolyl (im) residues under the conditions of nucleophilic substitution leading to tripod