Synthesis, structure, and electrochemical properties of <i>N,Nʹ</i>-bis(ferrocenylmethylene)ethylenediamine Schiff base and its metal complexes

<p>The reaction of <i>N,N'</i>-bis(ferrocenylmethylene)ethylenediamine (<b>FcNN</b>) Schiff base with metal salts gave SnCl₄FcNN (<b>1</b>), SnCl₂FcNN(H₂O)₂ (<b>2</b>), Sn₂(CH₃)₄Cl₄FcNN (<b>3</b>), Ti₂Cl₈FcNN (<b>4</b>), CdFcNN(NO₃)₂ (<b>5</b>), and CuFcNN(NO₃)₂ (<b>6</b>). New complexes (<b>1</b>)–(<b>6</b>) were characterized by IR and elemental analysis techniques. IR spectra showed that the Schiff base was coordinated to the metal ions in a bidentate manner with <i>N,N'</i> donor sites. The ¹H NMR spectra of complexes (<b>1</b>), (<b>2</b>), and (<b>4</b>) show all the expected signals with a typical signal pattern of disubstituted ferrocenyl groups. The electrochemical properties of complexes were determined by cyclic voltammetry. Cyclic voltammetry results show that these complexes exhibit one irreversible oxidation peak.</p

Bogdan Khmelnitsky as commander

Автор розглядає Богдана Хмельницького як полководця, його військовий талант в ході Визвольної війни українського народу середини 17 ст.The author examines Bohdan Khmelnytsky as commander, his military talent during the Liberation war of the Ukrainian people of the mid 17 century