Syntheses and Characterizations of Metal‐Organic Frameworks with Unusual Topologies Derived from Flexible Dipyridyl Ligands
作者:Ruihu Wang、Lei Han、Lijin Xu、Yaqiong Gong、Youfu Zhou、Maochun Hong、Albert S. C. Chan
DOI:10.1002/ejic.200400173
日期:2004.9
ligands, 2,2′-bis(3-pyridylmethyleneoxy)-1,1′-biphenylene (3,3′-bpp) and 2,2′-bis(4-pyridylmethyleneoxy)-1,1′-biphenylene (4,4′-bpp), were synthesized and employed for the preparation of coordination polymers. Seven metal-organic complexes, [Zn2(3,3′-bpp)2Cl4] (1), [Zn2(3,3′-bpp)2Br4] (2), [Zn(4,4′-bpp)Cl2]n (3), [Zn(4,4′-bpp)Br2]n (4), [Co(4,4′-bpp)2(SCN)2]n (5), [Cd(4,4′-bpp)2(SCN)2]·2H2O}n (6) and
两个灵活的外双齿配体,2,2'-双(3-吡啶基亚甲氧基)-1,1'-亚联苯(3,3'-bpp)和 2,2'-双(4-吡啶基亚甲氧基)-1,1' -联苯 (4,4'-bpp) 被合成并用于制备配位聚合物。七种金属有机配合物,[Zn2(3,3'-bpp)2Cl4] (1), [Zn2(3,3'-bpp)2Br4] (2), [Zn(4,4'-bpp)Cl2] n (3), [Zn(4,4'-bpp)Br2]n (4), [Co(4,4'-bpp)2(SCN)2]n (5), [Cd(4,4) '-bpp)2(SCN)2]·2H2O}n (6) 和 [Cd(4,4'-bpp)(dca)2]n (7) (dca− = 双氰胺) 3,3'-bpp 或 4,4'-bpp 与二价金属离子 ZnII、CoII 和 CdII 的组装反应。晶体结构分析表明,1 和 2 是双核金属大环,是同晶的,并具有由金属大环通过