K. Sugiyarto, H. Saputra, L. Permanasari
May 19, 2017
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Abstract
The objective of this work was to synthesise of complex containing manganese(II), 1,10-phenanthroline (phen) as ligand and a counter anion of trifluoromethanesulfonate (triflate). The complex was prepared by interaction of the corresponding nitrate salt and slightly excess of phenanthroline in aqueous solution, whereupon the precipitate was produced on addition of an excess of saturated potassium triflate solution when reducing the solvent. It was then characterised in terms of electrical conductivity, metal content, magnetic moment, electronic and infrared spectral properties, and powder XRD. The atomic absorption spectral data and the equivalent conductance suggest that the resulted complex was found to be ionic hydrated complex with the content of three ions per molecule, with an equivalent conductance in the range values of the three ionic standard, but much higher than the two ionic standard and much lower than the four ionic standard. The formula of [Mn(phen)3](CF3SO3)2.6,5H2O was then proposed. The...