首页> 外文期刊>Journal of chemical crystallography >A Binuclear Ag(I) Complex Based on a Tripodal Ligand Tris (2-Benzimidazolylmethyl)amine: Synthesis and Characterization
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A Binuclear Ag(I) Complex Based on a Tripodal Ligand Tris (2-Benzimidazolylmethyl)amine: Synthesis and Characterization

机译:基于三脚架配体三(2-苯并咪唑基甲基)胺的双核Ag(I)配合物:合成与表征

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摘要

A new binuclear complex [Ag_2(ntb)_2](NO_3)_2· (CH_3OH)_(1.5)· (CH_3CN)_(0.5) based on a tripodal ligand ntb (ntb = tris(2-benzimidazolylmethyl)amine) has been synthesized and structurally characterized by X-ray single crystal diffractometry. In the structure of the complex each center Ag(I) ion is coordinated by two N atoms from two benzimidazole arm of one ntb ligand and one N atoms from one benzimidazole arm of the other in a trigonal coordinated geometry, resulting in the construction of a binuclear complex. The complex units are further linked into a 1-D chain by hydrogen bonds. The emission spectrum of the complex has been investigated and shows a red-shift of the emission peak compared to the ligand and the existence of ligand-to-metal charge transfer process (emission peak at 468.2 nm). Cyclic voltammogram of the complex indicates a pair of quasi-reversible redox couple, corresponding to the Ag~+/Ag electrochemical process.
机译:基于三脚架配体ntb(ntb =三(2-苯并咪唑基甲基)胺)的新双核络合物[Ag_2(ntb)_2](NO_3)_2·(CH_3OH)_(1.5)·(CH_3CN)_(0.5)通过X射线单晶衍射法合成并在结构上表征。在配合物的结构中,每个中心Ag(I)离子由一个ntb配体的两个苯并咪唑臂上的两个N原子和另一个苯并咪唑的另一个苯并咪唑臂上的一个N原子配成三角配位几何,从而形成双核复合体。复杂单元通过氢键进一步连接成1-D链。研究了配合物的发射光谱,与配体相比,发射峰出现红移,并且存在配体到金属的电荷转移过程(发射峰位于468.2 nm)。配合物的循环伏安图表明一对准可逆的氧化还原对,对应于Ag〜+ / Ag的电化学过程。

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