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首页> 外文期刊>Zeitschrift fur Naturforschung, B. A Journal of Chemical Sciences >Synthesis, crystallographic and spectral characterization of a cadmium chloride complex containing a novel imidazo[1,5-a]pyridine derivative
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Synthesis, crystallographic and spectral characterization of a cadmium chloride complex containing a novel imidazo[1,5-a]pyridine derivative

机译：含新型咪唑并[1,5-a]吡啶衍生物的氯化镉配合物的合成，晶体学和光谱表征

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摘要

The reaction between 2-(2-amino-ethylamino)ethanol and pyridine-2- carbaldehyde in a 1: 3 molar ratio gave 3-(pyridin-2-yl)-1-(pyridin-2-ylmethyl) imidazo[1,5-a]pyridine (PPIP) which was characterized by elemental analysis and spectroscopic methods. The study of CSD-deposited structures revealed that PPIP is a new derivative of imidazo[1,5-a]pyridine. The cadmium chloride complex of this ligand [Cd(PPIP)Cl _2][Cd(PPIP)Cl _2]'3H _2O (1) was prepared and identified by elemental analysis, FT-IR, Raman and 1 ~H NMR spectroscopy, and single-crystal X-ray diffraction. In the crystal structure of 1, there are two cadmium complexes with slightly different coordination bond lengths and angles. Also water molecules are incorporated in the crystal network. The geometry around the cadmium atom which is coordinated by two pyridine and one imine nitrogen atoms and two chloride ions is distorted square pyramidal. All bond lengths compare well with CSD averages of similar structures. The hydrogen bonds including O-H?Cl and O-H?O present in the crystal structure of 1 are also comparable to those in analogs.
机译：2-（2-氨基-乙基氨基）乙醇与吡啶-2-甲醛的摩尔比为1：3的反应得到3-（吡啶-2-基）-1-（吡啶-2-基甲基）咪唑[1， 5-a]吡啶（PPIP），通过元素分析和光谱法表征。 CSD沉积结构的研究表明，PPIP是咪唑并[1,5-a]吡啶的新衍生物。制备了该配体[Cd（PPIP）Cl _2] [Cd（PPIP）Cl _2]'3H _2O（1）的氯化镉配合物，并通过元素分析，FT-IR，拉曼光谱和1 H NMR光谱进行了鉴定。单晶X射线衍射。在1的晶体结构中，有两个镉络合物，配位键的长度和角度略有不同。水分子也被并入晶体网络。由两个吡啶和一个亚胺氮原子和两个氯离子配位的镉原子周围的几何形状是扭曲的方形锥体。所有键长均与相似结构的CSD平均值相比较。存在于1的晶体结构中的包括O-H 2 Cl和O-H 2 O的氢键也与类似物中的氢键相当。

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