本論文第一部份利用鑭系金屬離子與4,4’–Oxybis (benzoic acid) (簡稱OBA)利用溶劑熱法合成出三個新穎金屬-有機配位聚合物：[H2N(CH3)2]K2[Nd3(OBA)6]‧1.4DMF‧52O (1)、 [H2N(CH3)2]Na2[Ln3(OBA)6]
‧DMF‧5H2O (Ln = Nd (2), Sm (3))、Na[Yb3(OBA)5(DMF)(H2O)2] (4)。這三種結構分別命名為CKMOF-9a，- 9b 與9c。化合物1具有釹三核單元，Nd–Nd–Nd角度約為176度。Nd–Nd距離為4.110Ǻ。此三核單元被十二個OBA配位基圍繞且延伸成3D結構。對稱產生的3D骨架互相穿透形成1的最終結構。化合物2與3等結構，同樣具有三核單元且被十二個OBA配位基圍繞，四個OBA配位基延ab平面行成二維網狀結構，再延c軸延伸成為三維骨架。第三種結構，化合物4具有另一種型態的三核單元，延伸OBA配位基形成二維骨架的化合物。

The first topic of my thesis is the use of lanthanum ions and 4,4’–oxybis (benzoate) (OBA) to construct a series of coordination polymers by the solvothermal reactions. In the series, [H2N(CH3)2]K2[Nd3(OBA)6]‧1.4DMF
‧5H2O (1), [H2N(CH3)2]Na2[Ln3(OBA)6]‧DMF‧5H2O [Ln = Nd (2), Sm (3)] and Na[Yb3(OBA)5(DMF)(H2O)2] (4) adopt three new structures labeled as CKMOF-9a, -9b and 9c, respectively. In 1, a neodymium trinuclear unit is formed, in which the Nd–Nd–Nd angle is close to 176º and the Nd–Nd distance is 4.110Å. The unit is surrounded by twelve OBA ligands. Eight ligands extened the unit into a network parlle bc plane while the rest four ligands fuse the network into a 3D framework. Therefore, framework in 1 can be viewed as two of the above 3D frameworks penetrating to each other. Both 2 and 3 adopt the same structure. Similarly, and lanthanide trinuclear units surrounded by OBA ligands are formed. Four ligands, extend the unit into a network parallel to the ab plane. Which the rest eight OBA ligands then support the network into an open framework. In 4, ytterbium trinuclear units are extended by OBA ligands into a network.

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