| Synthesis and Crystal Structure of a Dicyanamide-bridged One-dimensional Gadolinium(III) Complex [Gd(dca)_3(phen)_2(H_2O)]_n |
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| 作者姓名： | 张丽芳 寇建益 寇会忠 倪中海 崔爱莉 王如骥 |
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| 作者单位： | Department of Chemistry，Tsinghua University，Beijing 100084，China，Department of Chemistry，Tsinghua University，Beijing 100084，China，Department of Chemistry，Tsinghua University，Beijing 100084，China，Department of Chemistry，Tsinghua University，Beijing 100084，China，Department of Chemistry，Tsinghua University，Beijing 100084，China，Department of Chemistry，Tsinghua University，Beijing 100084，China |
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| 基金项目： | Supported by the National Natural Science Foundation of China (20201008, 50272034) |
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| 摘 要： | 1 INTRODUCTION Dicyanamide is a versatile bridging ligand linking two or more metal ions with three nitrogen donor atoms1～4]. The varieties of its coordination modes provide multifarious chances for designing new com- plexes with novel structures as well as interesting properties. Firstly, the complexes formulated as M- (dca)2]n (M = Mn, Fe, Co, Ni, Cu, Cr)5～9] mostly with 2D and 3D networks have been synthesized, and they usually exhibit high ordering temperatures. Afterwards, t…
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Synthesis and Crystal Structure of a Dicyanamide-bridged One-dimensional Gadolinium(III) Complex [Gd(dca)_3(phen)_2(H_2O)]_n |
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| Abstract: | A chainlike coordination polymer Gd(dca)3(phen)2(H2O)]n (dca = dicyanamide, phen = 1,10-phenanthroline) has been synthesized, and its crystal structure was characterized by X-ray single-crystal diffraction. The crystal belongs to monoclinic, space group P21/n with a = 10.6581(13), b = 15.6129(16), c = 17.733(3) , = 90.499(5)o, V = 2950.8(7) 3, Z = 4, C30H18GdN13O, Mr = 733.82, Dc = 1.652 g/cm3, F(000) = 1444, (MoK) = 0.71073 , = 2.297 mm-1, R = 0.0258 and wR = 0.0616 for 4570 observed reflections (I > 2((I)). In this complex, the gadolinium atom is nine-coordinated by four dca anions, two chelated phen ligands and one H2O molecule in a distorted tricapped trigonal prism. Two bridging dca anions connect the Gd(III) ions yielding chainlike polymers that are linked by hydrogen bonds and (-( interactions to form a three-dimensional network. |
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| Keywords: | synthesis crystal structure gadolinium dicyanamide coordination polymer |
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