Synthesis and Characterization of Unique Nickel(II) Carboxylates and Their Coordination Complexes
作者:Shavina、Baljit Singh
DOI:10.14233/ajchem.2018.21057
日期:——
Direct anodic dissolution of nickel metal and cathodic reduction of carboxylic acids (RCOOH) in acetonitrile has proved to be a simple and efficient one-step route to synthesize unique polymeric nickel(II) carboxylate complexes, Ni(OOCR)2}n in H-type glass Pyrex cell. When the oxidation was carried out in the presence of neutral ligands (L) such as 2,2’-bipyridyl or 1,10-phenanthroline, the complexes of type Ni(OOCR)2.L}n were obtained. Tetrabutylammonium chloride has been used as a supporting electrolyte in order to increase the electrolytic conductivity of the electrochemical system which in turn affects the current efficiency, cell voltage and energy consumption in the electrolytic cell. The complexes have been characterized by vibrational spectra, CHN elemental analysis, solubility and melting points shows a good agreement with the structure. The result also shows that the direct electrochemical synthetic technique has high current efficiency, extra purity and yield.
直接阳极溶解镍金属和乙腈中羧酸(RCOOH)的阴极还原已被证明是一种简单高效的合成独特聚合镍(II)羧酸盐配合物Ni(OOCR)2}n的一步法,使用H型玻璃派热克斯细胞进行。当氧化在存在中性配体(L)如2,2'-联吡啶或1,10-菲咯啉的情况下进行时,得到了类型为Ni(OOCR)2.L}n的配合物。使用了四丁基氯化铵作为支持电解质,以提高电化学系统的电解质导电性,这反过来影响电解池中的电流效率、电池电压和能量消耗。通过振动光谱、CHN元素分析、溶解度和熔点的测定,这些配合物的特性与结构吻合良好。研究结果还表明,直接电化学合成技术具有高电流效率、极高的纯度和产率。