【正文】
配位模式,以期得到新穎的配合物。6H2O 分析純 濟南恒化科技有限公司 配合物的合成 [Eu2(L1)2 (H2O)2].H2O(1) 的制備將反應物 H3L1( mmoL, g) 、NaOH( mmoL, g)和Eu(NO3)3實驗值(%):C,; H?;瘜W式為 C23H19EuO10,元素分析理論值(%):C, ;H 。Eu(1)O(7)1 (3) Eu(1)O(5)5 (4)Eu (1)O(8)2 (3) Eu(1)O(2) (4)Eu(1)O(1)3 (4) Eu(1)O(1W) (5) Eu (1)O(4)4 (3) Eu(1)O(2W) (3) 表 23 配合物 1 的部分鍵角Angle (176。3 x,y+1,z 。EuO 鍵的鍵長在 (3)(3) 197。因為 Eu 金屬原子和配體的配位書都比較高,故及其容易形成三維空間的網絡結構,如圖 23 所示,將金屬原子和配體都視為 6 連接的節(jié)點,對其進行拓撲分析,整個網絡結構最終可簡化為(6,6)連接的網絡結構如圖 22 所示。) Angle (176。4 x+1,y,z+1 )配合物 2 的最小不對稱單元如圖 25 所示,其包含一個 Eu 金屬中心,一個配體,兩個配位水分子。之間。配合物 2 在 390 nm 波長下激發(fā),在 578,590,613,649 和 690 nm 處得到了 Eu(Ⅲ)配合物 5D07FJ (J=0,1,2,3,4)能級躍遷的特征峰。 實驗總結本論文由于時間和設備以及作者水平的限制,有許多問題暫未能解決,后續(xù)工作可以在現(xiàn)有的研究基礎上從以下幾個方面深入展開:①在配合物的合成上需要更多探索,尋找合適的合成條件,以期望得到更多關于此配體的配合物。主要研究成果如下:本論文選擇 1,3二(氧代對苯甲酸基)苯甲酸;1,3二(氧代對甲基苯甲酸基)苯甲酸為主要配體,用水(或溶劑)熱法合成了 2 個結構新穎的配合物。②配合物 1 和 2 在室溫下有較好的熒光發(fā)射。近年來,功能配位聚合物的設計與合成越來越受到了科學家們的關注,但是定向的設計合成預期的配合物仍然是難以解決的一個難題,在實際工作中,尤其是對于比較復雜的體系,往往不能簡單地以分子設計(包括金屬離子或簇的選擇、配體的結構)來完全準確地預測產物的結構。因此,如何通過反應與結晶條件控制,獲得特定目標聚合結構,是配位聚合物組裝的挑戰(zhàn)性科學問題。,439。xC6H5NO2[J]. J. Am. Chem. Soc., 1990, 112: 15461554.[2] Fujita M, Kwon Y J, Ogura K, Preparation, clathration ability, and catalysis of atwo稀土金屬有機配位化合物的合成、結構與性質研究16dimensional square work material posed of cadmium and 4,4’bpy[J]. J. Am. Chem. Soc., 1994, 116: 11511152.[3] CHAE H K, SIBERIOPEREZ D Y, KIM J, et al. A route to high surface area, porosity and inclusion of large molecules in crystals[J]. Nature, 2022, 427: 523527.[4] CATAlINA R P, JOAQUIN S, MARIA H M. Ferromagism in malonatobridged copper(II) plexes. Synthesis, crystal structures, and magic propertiesof{[Cu(H2O)3][Cu(mal)2(H2O)]}n and {[Cu(H2O)4]2[Cu(mal)2(H2O)]}[Cu(mal)2(H2O)2]{[Cu(H2O)4][Cu(mal)2(H2O)2]}(H2mal = malonic Acid)[J]. In. Chem., 2022, 39: 13631370.[5] Blake A J, Champness N R, Crew M, et al. Sawhorse connections in a Ag(I)nitrite coordination work: {[Ag(pyrazine)]NO2}[J]. New J. Chem. 1999, 23: 1315.[6] Huang X C, Zhang J P, Chen X M. A new route to supramolecular isomers via molecular templating: nanosized molecular polygons of copper(I) 2methylimidazolates[J]. J. Am. Chem. Soc. 2022, 126: 1321813219.[7] Y. F. Zhou, Y. J. Zhao, D. F. Sun, J. B. Weng, R. Cao, M. C. Hong, Syntheses, crystal structures and photoluminescent properties of two isophthalatebridged plexes.[J]. Polyhedron. 2022, 22(9): 12311235.[8] P. losier, M. J. Zaworotko. A noninterperated Molecular ladder with hydropho cavities[J]. Angew. Chem. Int. Ed. Engl. 1996, 35(2324): 27792781.[9] H. J. Chen, W. J .Yu, XM. Chen, W. J. Zheng. Poly[cadmium(II)4,4180。 Hou, l.。Wu, B. Syntheses, Structures, and luminescent Properties of Six New Zinc(II) Coordination Polymers Constructed by Flexible Tetracarboxylate and Various Pyridine ligands Cryst[J]. Growth Des. 2022, 13: 31773187.[23] Sakamoto Y, Diaz I, Terasaki O, et al. Threedimensional Cubic mesoporous structures ofSBA12and related materials by electron crystallography[J]. J. Phys. ., 2002, 106(12): 31183123.[24] Yaghi O. M. and li H. Hydrothermal Synthesis of a MetalOrganic Framework Containing 稀土金屬有機配位化合物的合成、結構與性質研究18large Rectangular Channels[J]. J. Am. Chem. Soc., 1995, 117(41): 1040110404.[25] Noro S., Kitagawa S., Kondo M., Seki K. A New, Methane Adsorbent, Porous Coordination Polymer[{CuSiF6(4,4bipyridine)2}n][J]. Angew. Chem. Int. Ed., 2022, 39(12): 20812084.[26] Yaghi O. M., li H., Davis C., Richaedson D., Groy T. l. Synthetic Strategies, Structure Patterns, and Emerging Properties in the Chemistry of Modular Porous Solids[J]. Acc. Chem. Res., 1998, 31(8): 474484.[27] Carlucci l., Ciani G., Moret M., Proserpio ., Rizzato S. Polymeric layers Catenated by Ribbons of Rings in a ThreeDimensional SelfAssembled Architecture: A Nanoporous Network with Sponge like Behavior[J]. Angew. Chem. Int. Ed., 2022, 39(8): 15061510.[28] 施爾畏, 夏長泰, 王步國. 水熱法的應用與發(fā)展[J]. 無機材料學報, 1996, 11(2): 193206.[29] Wang Y., Ding B., Cheng P., et al., Tuned Triazolatesilver(I) luminescent Complexes from Zeroto ThreeDimensionality Based on Bi to Tetratopic Bridged ligands[J]. In. Chem., 2022, 46: 20222022.[30] Xu l., Qin C., Wang ., et al., Hydrothermal Synthesis and Structure of a New Helical Chain Constructed from Only Molybdenum?Oxide Building Blocks[J]. In. Chem., 2022, 42: 73427344.[31] Steven J. Kraft, Phillip E. Fanwick, and Suzanne C. Bart. Carbon–Carbon Reductive Elimination from Homoleptic Uranium(IV) Alkyls Induced by RedoxActive Ligands[J]. J. Am. Chem. Soc., 2022, 134: 6160–6168.稀土金屬有機配位化合物的合成、結構與性質研究19致 謝本論文的選題及研究過程是在***老師和***師兄的深切關懷及悉心指導下完成的