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  • 學位論文

鎂、錳、鈷、鎳配位聚合物的合成 與性質鑑定

Synthesis and Characterization of Magnesium, Mangnese,Cobalt and Nickel Coordination Polymers

指導教授 : 林嘉和

摘要


中文摘要 本研究是以中溫溶劑(水)熱反應合成法來進行反應,主要利用一系列金 屬搭配陰離子有機配位基與兩種酸來合成配位聚合物,成功合成出四個新 穎的金屬-有機配位聚合物為化合物1 ~ 4。其化學式分別為: [Mg3(HCO2)3(DMF)3(BTC)](1) 、[Mn3(HCO2)3(DMF)3(BTC)](2) 、 [Ni3(HCO2)3(DMF)3(BTC)] (3) 和 [Co3(H2O)4(bpp)2(BTEC)2]·6(H2O)] (4) ,其中的有機配位基如 HCOOH 是甲酸陰離子、DMF 是二甲基甲醯胺、 H3BTC 是1,3,5-三羧酸苯陰離子、H4BTEC 是1,2,4,5-四羧酸苯陰離子;中 性有機配位基 bpp 是4’4-三甲基雙吡啶。 以上所合成的配位聚合物都是二維層狀的結構,其中化合物1 ~ 3的結 構都是以[M6(R(CO2)3)2(HCO2)6(DMF)6]當做團簇物,其中BTC 陰離子有 機配位基用來連接此團簇物,延伸出二維層狀的結構,它們都是等結 構化合物。在化合物4 結構中,BTEC 都被質子化,以μ4架橋配位的方式 用來形成4核鈷的36金屬圓環結構。除了描述單晶結構解析之外,我們還 針對其做物理性質及化學性質的分析鑑定。將以上化合物利用粉末X 光繞 射圖譜、元素分析以及IR 光譜對於單晶結構及化學式來鑑定金屬與有機物 之種類和比例來驗證所合成之化合物、以熱重分析來分析結構的熱穩定性 及熱分解現象、以紫外光-可見光分光光譜儀來判斷中心配位金屬的環境 和以螢光光譜儀來鑑定產物發光性質及以超導量子干涉磁量儀(SQUID)測 磁性。將各化合物的結構特徵及相關性質來作研究及應用。

並列摘要


Abstract Four coordination polymers, [Mg3(HCO2)3(DMF)3(BTC)](1) 、 [Mn3(HCO2)3(DMF)3(BTC)] (2)、[Ni(HCO2)3(DMF)3(BTC)] (3) and [Co3(H2O)4(bpp)2(BTEC)2]·6(H2O) (4). (DMF=N,N-Dimethylformamide; HCOOH=Formic acid; BTEC=1,2,4,5-Benzenetetracarboxylic acid; BTC=1,3,5-benzene-tricarboxylates acid; bpp= 4,4’-trimethylene dipyridine ), have been synthesized by solvothermal reactions and structurally characterized. The success synthesizes four new coordination polymers and one literature has published metal-organic coordination polymer. Single crystal X-ray diffraction showed that all compounds are 2D dimensional structures. The structure of complexes 1~3 are isomorphous, which have 2D network constructed from [M6(R(CO2)3)2(HCO2)6(DMF)6] (R=C9H3 –) clusters and 1,3,5-benzene-tricarboxylates linkers. In compound 4, each deprotonated BTEC joins Co(II) centers through μ4-bridging mode to form 36-membered tetranuclear Cobalt metallamacrocyles. The novel complexes were also characterized by Powder X-ray diffraction,elemental analysis, thermogravimetric analysis, IR spectroscopy, UV-VIS spectra, photoluminescence and magnetic susceptibility.

參考文獻


[2] R. Robinson, in Comprehensive Supramolecular Chemistry, Vol. 6
[3] G. R. Desiraju, Crystal Engineering. The Design of Organic Solids,
Elsevier, Amsterdam, 1989.
Chem. Soc, 1991, 113,5410.
[6] C. J. Janiak, Chem. Soc, Dalton Trans, 2000, 3885.

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