基于双咪唑配体的一维银配位聚合物的合成、晶体结构和表征(英文)

Synthesis,Crystal Structure and Characterization of a One-Dimensional Ag(Ⅰ) Coordination Polymer Based on Bis(imidazole) Ligand

通过水热法合成了1个一维配位聚合物[Ag(1,2-bix)].HL,并对该化合物进行了元素分析、红外和单晶X-射线表征(1,2-bix=1,2-(二亚甲基苯)二咪唑配体,HL=反式-4,4′-二羧基偶氮苯阴离子)。该化合物属于三斜晶系,空间群P1,晶胞参数a=0.937 80(5)nm,b=1.119 91(16)nm,c=1.356 36(10)nm,α=102.923(8)°,β=91.751(5)°,γ=110.792(10)°,V=1.288 5(2)nm3,Z=2,C28H23AgN6O4,Mr=615.39,Dc=1.586 g.cm-3,F(000)=624,μ(Mo Kα)=0.829 mm-1,R=0.040 7,wR=0.102 0。在该化合物中,双咪唑配体连接着中心的Ag(Ⅰ)原子形成了一维链状结构。二羧酸配体之间通过O-H…O键形成另一种一维链状结构,两种类型的链以相互垂直的方式延伸。此外,我们还仔细研究了该化合物的荧光性质。

A complex,[Ag（1,2-bix）]·HL（1）（H2L=4,4′-azodibenzoic acid and 1,2-bix=1,2-bis（imidazole-1-ylmethyl）benzene） has been hydrothermally synthesized and characterized by elemental analysis,IR and single-crystal X-ray diffraction.It crystallizes in triclinic system,space group P1 with a=0.937 80（5） nm,b=1.119 91（16） nm,c=1.356 36（10） nm,α=102.923（8）°,β=91.751（5）°,γ=110.792（10）°,V=1.288 5（2） nm3,Z=2,C28H23AgN6O4,Mr=615.39,Dc=1.586 g·cm-3,F（000）=624,μ（Mo Kα）=0.829 mm-1,R=0.040 7 and wR=0.102 0.In this compound,the 1,2-bix ligands bridge the neighboring Ag（Ⅰ） atoms to generate a one-dimensional chain structure with the Ag…Ag separation of 1.356 4 nm.The neighboring HL ligands form another type of one-dimensional chain through O-H…O hydrogen bond.Interestingly,the two types of one-dimensional chains extend each other in vertical modes.In addition,the luminescent property of 1 has been studied in detail.