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Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
(anti-Chlorido-thio-semicabazide-κS)bis-(tri-phenyl-phosphane-κP)copper(I) 0.48-hydrate
Ruthairat Nimthong1, Chaveng Pakawatchai, Nutchanat Phongphayak
1Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand.
Abstract:
In the mononuclear title complex, [CuCl(CH5N3S)(C18H15P)2]·0.48H2O, the Cu(I) ion is in a slightly distorted tetra-hedral coordination geometry formed by two P atoms from two tri-phenyl-phosphane ligands, one S atom from a thio-semicarbazide ligand and one chloride anion. An intra-molecular N-H⋯N hydrogen bond [graph-set motif S(5)] stabilizes the thio-semicarbazide ligand in its anti conformation, and an intra-molecular N-H⋯Cl hydrogen bond between the hydrazine N-H group and the chloride anion influences the arrangement and orientation of the ligands around the metal center. A weak intra-molecular C-H⋯Cl hydrogen bond is also present. In the crystal, complex mol-ecules are connected through N-H⋯Cl hydrogen bonds originating from the amide -NH2 group, and through O-H⋯S and O-H⋯Cl hydrogen bonds involving the solvent water mol-ecule. Both the direct N-H⋯Cl hydrogen bonds as well as the bridging hydrogen bonds mediated by the water mol-ecule connect the complex mol-ecules into zigzag chains that propagate along [010]. The solvent water mol-ecule is partially occupied, with a refined occupancy of 0.479 (7).
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