Complexes of benzothiazole (BT) of the composition SnX4(BT) and MCl4(BT)2(where X = Cl, Br or I; M = Ti, Zr or Si and BT = C7H5SN) have been prepared and studied by spectroscopic (proton magnetic resonance, electronic absorption and infrared spectra) techniques. The stability and composition of the complexes were established by melting point/decomposition point determinations and elemental analysis, respectively. Molar conductivity measurements show the covalent nature of the complexes. A polymeric structure involving ligand bridging through the sulphur and nitrogen atoms is suggested for the SnX4(BT) complexes. Atrans-octahedral structure is suggested for the zirconium, silicon and titanium complexes with the ligands coordinated through the nitrogen atom.
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