Abstract The synthesis and structural investigation of a new heteronuclear hexacyanochromate(III) complex based on amine containing tetradentate ligand tris(2-aminoethyl)amine ligand (tren) are reported. The complex was characterized by spectral (FT-IR and Raman), elemental, thermal analysis (TG, DTG and DTA) as well as single crystal X-ray diffraction (SC-XRD) techniques. From elemental and spectral data, the formulae, [Cd(tren)(Htren)][Cr(CN)6]⋅2H2O (1), for the metal complex has been proposed. Single crystal X-ray diffraction (SC-XRD) measurement showed that the asymmetric unit of 1 consists of one Cd(II) ion, one Cr(III) ion, six cyanide ligands, one tren and one Htren ligands and two crystal water molecules. The structure of 1 presents one of tren ligands was protonated and the coordinated to Cd(II) ion as a monodentate ligand. Other tren ligand was also bonded to Cd(II) ion as a tetradentate ligand to form a distorted trigonal-bipyramidal geometry. In the crystal structure, Cr(III) ion is coordinated by six carbon atoms from six different cyanide ligands, thus showing a distorted octahedral coordination geometry. In 1, The FT-IR and Raman spectral data of the complex compared with the crystallographic data, the results appear to be consistent with each other. Thermal properties of the title complex were investigated by thermogravimetric analysis (TG/DTG/DTA) in the temperature range of 30–700 °C in air atmosphere.

中文翻译：

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三(2-氨基乙基)胺), [Cd(tren)(Htren)][Cr(CN)6]⋅2H2O的异核六氰铬酸盐(III)络合物的合成与结构分析

摘要 报道了一种基于含胺四齿配体三（2-氨基乙基）胺配体（tren）的新型异核六氰基铬酸盐（III）配合物的合成和结构研究。该配合物通过光谱（FT-IR 和拉曼）、元素分析、热分析（TG、DTG 和 DTA）以及单晶 X 射线衍射（SC-XRD）技术进行表征。根据元素和光谱数据，已经提出了金属配合物的公式[Cd(tren)(Htren)][Cr(CN)6]⋅2H2O (1)。单晶X射线衍射(SC-XRD)测量表明1的不对称单元由1个Cd(II)离子、1个Cr(III)离子、6个氰化物配体、1个tren和1个Htren配体和2个结晶水分子组成. 1 的结构表示 tren 配体之一被质子化并与 Cd(II) 离子配位为单齿配体。其他 tren 配体也作为四齿配体与 Cd(II) 离子键合，形成扭曲的三角双锥几何结构。在晶体结构中，Cr(III) 离子由来自六个不同氰化物配体的六个碳原子配位，因此显示出扭曲的八面体配位几何。1、将配合物的FT-IR和拉曼光谱数据与晶体学数据进行比较，结果似乎是一致的。通过热重分析 (TG/DTG/DTA) 在 30–700 °C 的温度范围内，在空气气氛中研究了标题配合物的热性质。因此显示出扭曲的八面体配位几何。1、将配合物的FT-IR和拉曼光谱数据与晶体学数据进行比较，结果似乎是一致的。通过热重分析 (TG/DTG/DTA) 在 30–700 °C 的温度范围内在空气气氛中研究了标题配合物的热性质。因此显示出扭曲的八面体配位几何。1、将配合物的FT-IR和拉曼光谱数据与晶体学数据进行比较，结果似乎是一致的。通过热重分析 (TG/DTG/DTA) 在 30–700 °C 的温度范围内，在空气气氛中研究了标题配合物的热性质。