Synthesis and characterization of Mono-Aqua-Pentakis (Isoni-Cotinic Acid) Nickel (II) Sulfate Trihydrate
作者： H Syaima , S B Rahardjo , N Amanati
DOI: 10.1088/1742-6596/1022/1/012028
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摘要: A complex of nickel (II) with isonicotinic acid (asint) was successfully obtained. The synthesized in 1:2 mole ratio metal to the ligand methanol. percentage 6.91% determined by Atomic Absorption Spectroscopy (AAS). Therefore, predicted formula Ni(asint)5SO4(H2O)4. molar conductivity measured meter corresponding 1:1 electrolyte. thermal analysis formed Differential Thermal Analysis (DTA) indicating that contains four water molecules as and hydrates. magnetic susceptibility measurement showed paramagnetic μeff= 3.30 B.M. Electronic spectra appeared at two transition peaks on λ= 394 nm 659 nm. infrared a shift tertiary N-group absorption 1234 1338 cm-1 compared 1149 1331 cm-1. In addition, also -OH group which lower wavenumber 3371 from 3425 (isonicotinic acid). This fact indicated functional groups were coordinated central ion. possibility [Ni(asint)5(H2O)]SO43H2O octahedral structure.
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