臺灣博碩士論文加值系統

本論文的研究重點在於以中溫結晶法方式，使用鑭系金屬陽離子與有機配位子在均相中，溫和反應合成新的無機(Inorganic)/有機(Organic)配位高分子(coordionation polymers)化合物。
雖然配位高分子的孔洞材料受到很多科學家的關注，但是大部分的研究方向都侷限在過渡族金屬化合物，而較少有關於鑭系金屬化合物的研究報告。但是由於稀土元素(rare-earth elements) ，具有4f的電子軌域，因此具有高且多變的配位數，此外還有 f-f 電子轉移的特性，所以我們嘗試使用鑭系金屬來當作中心金屬，及使用2-Aminoterephthalic acid (2-ATPA)、3,5-Pyridine-dicarboxylic acid(3,5-PDA)、 Pamoic acid做為有機架橋配位基 (bridging ligand)，合成一系列多孔性的有機/無機配位高分子化合物，在有機溶劑中可以自我組裝成固態結晶：La2(2-ATPA)3(H2O)2‧3H2O (1)、Ln2(2-ATPA)3(DMA)4 ‧8H2O(2)、Gd2(2-ATPA)3(DMF)2(H2O)2 (3)、Er2(2-ATPA)3(H2O)4‧2(DMF)2(H2O) (4)、 Ln2(3,5-PDA)3(DMF)(H2O)2‧5(H2O) (5)、La(3,5-PDA)(3,5PDAH)(DMF)(H2O)‧3H2O (6)、La2(3,5-PDA)3(H2O)3‧6(H2O) (7)、Pr2(3,5-PDA)3(DMF)2‧2(DMF) (8)、Gd2(3,5-PDA)3(H2O)3‧2(H2O)(DMF) (9)、Gd2(Pamoic acid)3(DMSO)3 (10)。這些化合物中包含了二維結構與三維結構，我們將探討其合成條件、X光繞射(X-ray Diffractometer)單晶結構，以及其熱穩定性與吸附-脫附的性質。

This thesis focuses on the synthesis, crystallization and characterization of inorganic/organic coordination polymers obtained under medium temperature reaction conditions.
Utilizing 2-Aminoterephthalic acid (2-ATPA)、3,5-Pyridine-dicarboxylic acid(3,5-PDA)、 Pamoic acid as bridging ligands to connect t rare-earth elements cations, a series of inorganic/organic coordination polymers, some of which possess porous frameworks, were obtained by means of self-assembly under such medium temperature reaction conditions, using organic solvents as templates and reaction media. These compounds are La2(2-ATPA)3(H2O)2‧3H2O (1)、Ln2(2-ATPA)3(DMA)4 ‧8H2O(2)、Gd2(2-ATPA)3(DMF)2(H2O)2 (3)、Er2(2-ATPA)3(H2O)4‧2(DMF)2(H2O) (4)、 Ln2(3,5-PDA)3(DMF)(H2O)2‧5(H2O) (5)、La(3,5-PDA)(3,5PDAH)(DMF)(H2O)‧3H2O (6)、La2(3,5-PDA)3(H2O)3‧6(H2O) (7)、Pr2(3,5-PDA)3(DMF)2‧2(DMF) (8)、Gd2(3,5-PDA)3(H2O)3‧2(H2O)(DMF) (9)、Gd2(Pamoic acid)3(DMSO)3 (10). Compounds (1), (2), (3), (4), (5), (7) and (8) adopt three-dimensional frameworks mostly with solvents located in the cavities, while compounds (6), (9) and (10) contain two-dimensional frameworks. They were structurally characterized by single crystal X-ray diffraction techniques and their thermal stabilities were studied by thermal analysis as well as powder X-ray diffraction. Their sorption-desorption behaviors have been investigated.