| ［M(C5H4NCOO)2(H2O)n］的水热法合成及漫反射光谱研究 |
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| 引用本文： | 张丽娟,张卓. ［M(C5H4NCOO)2(H2O)n］的水热法合成及漫反射光谱研究[J]. 北京化工大学学报(自然科学版), 2006, 33(6): 78-81 |
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| 作者姓名： | 张丽娟 张卓 |
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| 作者单位： | 北京化工大学 化工资源有效利用国家重点实验室， 北京 100029 |
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| 摘 要： | 采用4-氰基吡啶和Co(Ⅱ)、Ni(Ⅱ)、Fe(Ⅲ)离子进行溶剂热反应，合成了两种由配合物形成的超分子化合物［Co(C5H4NCOO)2(H2O)4］(1)、［Ni(C5H4NCOO)2(H2O)4］(2)及一种配位聚合物［Fe(C5H4NCOO)2］(3)，并对其晶体结构和紫外 可见近红外(UV-Vis-NIR)漫反射光谱进行了研究。结果表明，化合物1的晶体结构属于三斜晶系，空间群Pī，a=0.6334(13)nm，b=0.68904(14)nm，c=9.2428(18)nm，α=960791(3)°，β=1046394(3)°，γ=113.2359(3)°；化合物2的晶体 结构属于三斜晶系，空间群Pī，a=0.62878(7)nm，b=0.69008(8)nm，c=0.92240(10)nm，α=96.500(10)°，β=105.130(10)°，γ=113.320(10)°；而化合物3的晶体结构属于单斜晶系，空间P21/n,a=0.49562(3)nm，b=1.31293(9)nm，c=106436(8)nm，α=90°，β=101.307(1)°，γ=90°。UV-Vis-NIR漫反射光谱结果表明化合物1和2的能隙值均为3.5eV，属于绝缘体； 化合物3的能隙值为2.5 eV，属于半导体。
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| 关 键 词： | 4-氰基吡啶 配位聚合物 紫外-可见-近红外漫反射光谱 4-氰基吡啶 配位聚合物 紫外-可见-近红外漫反射光谱 |
| 收稿时间： | 2006-04-04 |
| 修稿时间： | 2006-04-04 |
Hydrothermal synthesis and diffuse reflectance spectra of [M(C5H4NCOO)2(H2O)n] |
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| ZHANG Li-juan,ZHANG Zhuo. Hydrothermal synthesis and diffuse reflectance spectra of [M(C5H4NCOO)2(H2O)n][J]. Journal of Beijing University of Chemical Technology, 2006, 33(6): 78-81 |
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| Authors: | ZHANG Li-juan ZHANG Zhuo |
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| Affiliation: | State Key Laboratory of Chemical Resource Engineering，Beijing University of Chemical Technology，Beijing 100029，China |
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| Abstract: | ［M(C5H4NCOO)2(H2O)n］（M=Co, Ni, n=4; M=Fe, n=0）were synthesized hydrothermally from mixtures of 4-CNpy and MClm·6H2O (M=Co(Ⅱ ),Ni(Ⅱ), Fe(Ⅲ)). The crystal structures of［M(C5H4NCOO)2(H2O)n］ were determined and their UV Vis NIR diffuse reflectance spectra were investigated. The structure of the supramolecular compound［Co(C5H4NCOO)2(H2O)4］belongs to the triclinic space group Pī，a=0.63340(13)?nm，b=0.6890 4(14)nm，c=0.92428(18)nm，α=96.0791(3)°，β=104.6394(3)°，γ=113.2359(3)°. The structure of the supramolecular compound［Ni(C5H 5NCOO)2(H2O)4］ belongs to the triclinic space group Pī，a=0.62878 (7)nm，b=0.69008(8)nm，c=0.92240(10)nm，α=96.500(10)°，β=105.130(10)°γ=113.320(10)°；A UV-Vis-NIR reflectance spectroscop y study of［Co(C5H4NCOO)2(H2O)4］and［Ni(C5H4NCOO)2(H2O)4］revealed the insulator nature of the materials with an optical energy gap of 3.5eV in each case. The structure of the coordination polymer［Fe(C5H4NCOO)2］ belongs to the monoclinic space group P21/n，a=0.49562(3)nm，b=1.31293(9)nm，c=1 .06436(8)?nm，α=90°，β=101.307(1)°，γ=90°. A UV-Vis-NIR r eflectance spectroscopy study revealed the semiconductor nature of the material with an optical energy gap of 2.5eV. The reasons for the differences in struc ture and properties have been discussed. |
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| Keywords: | 4-cyanopyridine coordination polymer UV-Vis-NIR diffuse reflectance spectrum |
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