稀土元素配位聚合物和亞磷酸鹽之合成、晶體結構與發光性質研究;Synthesis, Crystal Structures and Photoluminescence Properties of Rare Earth Coordination Polymers and Oxalatophosphites

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/54106

Title:	稀土元素配位聚合物和亞磷酸鹽之合成、晶體結構與發光性質研究;Synthesis, Crystal Structures and Photoluminescence Properties of Rare Earth Coordination Polymers and Oxalatophosphites
Authors:	陳逸翔;CHEN,YI-XIANG
Contributors:	化學研究所
Keywords:	配位聚合物;稀土元素;發光性質;Rare Earth Metal;Photoluminescence;Coordination Polymers
Date:	2012-07-09
Issue Date:	2012-09-11 18:36:28 (UTC+8)
Publisher:	國立中央大學
Abstract:	本研究使用中溫水熱法合成出兩系列化合物，A系列為稀土元素配位聚合物：Re2(C8O4H10)3 (Re＝Tb(A1)、Eu(A2)、Y(A3))和摻雜不同比例得到(A4)、(A5)；B系列為稀土元素亞磷酸鹽Y(H2O)(C2O4)0.5(HPO3)•H2O (B1)和摻雜Eu3+和Tb3+得到(B2)。此兩系列藉由單晶X光繞射儀定出結構，粉末X光繞射鑑定純度後，接著量測其元素分析、全反射式X光螢光分析、熱重分析法、及光致發光光譜等進行一系列物理性質的量測。 A系列化合物為一新穎的配位聚合物，由稀土元素多面體共邊的方式連成一維的鏈，再由配位基連接成為三維的開放骨架，結構當中，具有一個trans-CHDC，兩種不同配位模式的cis-CHDC在特定波長之光源激發下，將A1-A5放射光以CIE色度座標表示，A1為綠光、A2為紅光、A3為藍光、A4為黃光、A5為白光。 B系列化合物是由稀土元素多面體和亞磷酸多面體以共邊的方式連結成二維平面，再由草酸配位基以雙邊螯合，連接平面形成三維的開放骨架。在特定波長之光源的激發下，將B1、B2放射光以CIE色度座標表示，B1為藍光、B2為黃光。Two types of rare earth compounds have been synthesized by the hydrothermal method. The first type includes three rare earth coordination polymers, namely Re(C8H10O4) (Re = Tb (denoted as A1), Eu (A2), Y (A3)). Two mixed-metal compounds (A4 and A5) have also been synthesized. The second type includes a rare earth oxalatophosphite, Y(H2O)(C2O4)0.5(HPO3)•H2O (B1). All of these compounds have been structurally characterized by single-crystal X-ray diffraction and further characterized by powder X-ray diffraction, elemental analysis, total reflectance X-ray fluorescence spectroscopy, and thermogravimetric analysis. The structure of Re(C8H10O4) contains 1D chains of ReO8 polyhedra which are linked by 1,4-cyclohexanedicarboxylate ligands to form a 3D framework structure. The photoluminescence properties of the Tb, Eu and mixed-metal compounds have been studied. The structure of Y(H2O)(C2O4)0.5(HPO3)•H2O contains 2D layers of yttrium phosphite which are linked by bisbidentate oxalate ligands to form a 3D framework structure.
Appears in Collections:	[Graduate Institute of Chemistry] Electronic Thesis & Dissertation

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