Polarography of some coordination compounds of platinum. IV. Compounds of platinum(II) containing 1,10-Phenanthroline

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Abstract
Four ions were studied at the dropping mercury electrode. They were [Pt(ophen)2]2+, [Pt(ophen)(en)]2+, [Pt(ophen)(py)2]2+, and [Pt(ophen)(py)Cl]+, where ophen= 1,10- phenanthroline, en=ethylenediamine, and py=pyridine. The shapes of the c-v curves of the ions in supporting electrolyte 0.1M KCl, were dependent on complex ion concentration. Adsorption phenomena occurred with some ions but the effects decreased as the complex ion concentration decreased. The reduction of [Pt(ophen)2]2+ produced evidence for compounds of platinum with valency less than two. Reduction of the other ions appeared to proceed directly to metallic platinum.

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