Abstract
Complexes of copper(II) with aminobenzothiazole are synthesized by mixing CuSO4.5H2O with aminobenzothiazole in 1:4 mole ratio of metal to ligan in methanol and stirres for three hours. The forming of complex was indicated by the shift of maximum wavelength to the shorter wavelength (823 nm to 731 nm) show transition 2B1g → 2A1g. The formula of complexes are predicted from analysis metal in complexes by Atomic Absorption Spectroscopy (AAS) and cooper content is 9.54%. Electrical conductivity measurements resulted in non-electrolite. Thermogravimetric Analysis/Differential Thermal Analyzer (TG/DTA) showed that the complex contained two H2O molecules. The IR spectral data showed a shift in the absorption of the NH2 functional group indicating that the functional group is coordinated to the Cu(II) monodentately. The nature of the magnetic complex was determined by Magnetic Susceptibility Balance (MSB) which results in μeff was 1.83 ± 0.04 BM indicating that the complex was paramagnetic.
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