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邻菲啰啉衍生物与柔性二羧酸构筑的铅(Ⅱ)配位聚合物:合成、结构与表征(英文)

Synthesis, Structure and Characterization of Pb(Ⅱ) Coordination Polymer Constructed by 1,10-Phenanthroline Derivative and Succinic Acid
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摘要 通过水热合成的方法得到了一个新的化合物[Pb2(L1)2(L2)2],并对该化合物进行了元素分析、红外、热重和单晶X-射线表征(H2L1为丁二羧酸阴离子,L2为邻菲啰啉衍生物)。该化合物属于单斜晶系,空间群P21/c,晶胞参数:a=0.795 40(10)nm,b=2.649 0(3)nm,c=1.996 9(2)nm,β=99.784(2)°,V=4.1463(9)nm3,Z=4,R=0.038 0,wR=0.084 5。在该化合物中,丁二酸阴离子连接着铅原子形成一维链状结构。此外,链与链之间的π-π相互作用使一维链形成了三维超分子结构。最后,N-H…29…29O氢键进一步地稳定了此三维超分子结构。 A coordination polymer, [Pb2(L1)2(L2)2] (1) (H2L1=succinic acid and L2=2-(4-fluorophenyl)-1H-imidazo [4,5-f][1,10]phenanthroline), has been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, TGA and single-crystal X-ray diffraction. Crystal data: C46H30F2N8O8Pb2, monoclinic, space group P21/c, a=0.795 40(10) nm, b=2.649 0(3) nm, c=1.996 9(2) nm,β=99.784(2)°, V=4.146 3(9) nm3, Z=4, R=0.038 0, wR=0.0845. In 1, each L1 anion in a bis-chelating mode bridges Pb(Ⅱ) atoms to afford a one-dimensional (1D) chain structure. Neighboring 1D chains are linked together by π-π stackings among L2 ligands to yield a 3D supramolecular architecture. Finally, the N-H… O hydrogen-bonding interactions further stabilize the 3D supramolecular structure of 1.
出处 《无机化学学报》 SCIE CAS CSCD 北大核心 2013年第9期1942-1946,共5页 Chinese Journal of Inorganic Chemistry
基金 吉林省科技发展计划项目基金(No.201105085)资助项目
关键词 晶体结构 配位聚合物 丁二羧酸 邻菲啰啉衍生物 crystal structure coordination polymer succinic acid 1,10-phenanthroline derivative
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