Syntheses, NMR (1H,31P) spectroscopy and crystal structures of complexes of copper(I) halides with isatin-3-thiosemicarbazones
- 15 June 2005
- journal article
- research article
- Published by Taylor & Francis in Journal of Coordination Chemistry
- Vol. 58 (9), 803-809
- https://doi.org/10.1080/00958970500110974
Abstract
Isatin-3-thiosemicarbazones (H2itsc) react with copper(I) bromide or iodide in a 1 : 1 mol ratio in acetonitrile in the presence of two moles of Ph3P to form tetrahedral monomeric complexes of composition [CuX(η1-S-H2itsc)(Ph3P)2], X = Br (1), I (2). These complexes, which have been characterized by single-crystal structure determinations, are unlike the iodo-bridged dinuclear complex of copper(I) iodide of pyrrole-2-carbaldehydethiosemicarbazone (Hptsc), namely [Cu2(μ-I)2(η1-S-Hptsc)2(PPh3)2] (3). In both 1 and 2, the geometry around Cu is distorted tetrahedral with P–Cu–P bond angles being 121.97(3) (1) and 124.09(5)° (2). Proton NMR confirms that thiosemicarbazone coordinates to the Cu atom as a neutral ligand, and 31P NMR shows that there is no dissociation of the complexes in solution; coordination shift values suggest that Ph3P stabilizes the Cu(I) oxidation state.Keywords
This publication has 18 references indexed in Scilit:
- Reaction of dimethylthallium(III) acetate and isatin-3-thiosemicarbazone. Crystal and molecular structure of dimethyl(dimethylsulfoxide)(isatin-3-thiosemicarbazonato)thallium(III)Inorganica Chimica Acta, 2000
- Transition-metal complexes of isatin-β-thiosemicarbazone. X-ray crystal structure of two nickel complexesJournal of Inorganic Biochemistry, 1999
- Synthesis and Spectroscopic Studies of New Metal Complexes of Thiosemicarbazones Derived from 4-Ethyl-3-Thiosemicarbazide and Biacetylmonoxime. Chromone-3-Carboxaldehyde or IsatinSynthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 1993
- Synthesis, Spectral and Magnetic Investigation of 4(2-Pyridyl)-Isatin-3-Thiosemlcarbazone ComplexesSynthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 1992
- Nickel(II) chelates of Schiff bases derived from isatin and chromone with amino acids and substituted hydrazinesTransition Metal Chemistry, 1990
- New Octahedral Complexes of Schiff Bases Derived from 2,3-IndolinedioneSynthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 1989
- Cobalt(II), Nickel(II), Copper(II), and Zinc(II) Complexes of Some Isatin ThiosemicarbazonesSynthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 1987
- Synthesis and Characterization of the Complexes of N-Dimethylaminomethyl Isatin β-Thiosemicarbazone with Cobalt, Nickel, Copper, Zinc, Mercury and Iron ChloridesSynthesis and Reactivity in Inorganic, Metal-Organic, and Nano-Metal Chemistry, 1985
- Some Heterocyclic ThiosemicarbazonesJournal of the American Chemical Society, 1951
- CONSTITUENTS OF ELEMENTARY BODIES OF VACCINIAThe Journal of Experimental Medicine, 1941