| 一维配位聚合物{[Co(dpa)(H2O)4]·(dpdo)·(H2O)}n(H2dpa=2,2’-联苯二酸,dpdo=N,N’-二氧化-4,4’-联吡啶)的晶体结构和光谱性质 | |
| Crystal Structure and Spectral Properties of a One-Dimensional Coordination Polymer {[Co(dpa)(H2O)4]·(dpdo)·(H2O)}n (H2dpa=2,2’-biphenyldicarboxylate, dpdo=4,4’-bipyridine-N,N’-dioxide) | |
| 摘要: 采用水热合成法制备了一个一维配位聚合物{[Co(dpa)(H2O)4]·(dpdo)·(H2O)}n (1)(H2dpa=2,2'-联苯二酸,dpdo=N,N'-二氧化-4,4'-联吡啶),通过红外光谱、紫外光谱、元素分析、XRPD、TGA和X-射线单晶衍射进行了表征。Co(Ⅱ)原子采取了畸变的八面体构型,6个配位氧原子分别来自于2个dpa2-配体和4个配位水分子。每一个dpa2-配体桥联2个Co(Ⅱ)中心,每一个Co(Ⅱ)原子与2个dpa2-配体配位进而形成了21螺旋链结构。借助溶剂水分子的连接作用,螺旋链之间通过多种O-H…O氢键作用形成了2D网格,通过dpdo和2D网格之间多种类型的氢键作用形成了三维超分子结构。测定了室温下聚合物1的固体荧光光谱。 | |
| 关键词: 配位聚合物 钴(Ⅱ) 晶体结构 | |
| 基金项目: 国家自然科学基金(No.21071044)资助项目。 | |
| Abstract: A new Co(Ⅱ) coordination polymer {[Co(dpa)(H2O)4]·(dpdo)·(H2O)}n (1) (H2dpa=2,2'-biphenyldicarboxy-late, dpdo=4,4'-bipyridine-N,N'-dioxide) has been synthesized and characterized by IR spectroscopy, UV-Vis spectroscopy, elemental analysis, XRPD, TGA and X-ray single-crystal structure analysis. The Co(Ⅱ) atom has a distorted octahedral coordination environment with a set of oxygen donors from two dpa2- ligands and four coordinated water molecules. Each dpa2- ligand is bounded to two cobalt centers and each cobalt atom is coordinated by two dpa2- ligands thereby generating a 21 helical chain. The helical chains further interact with each other and form a 2D network through multiform O-H…O hydrogen bonds with the help of the solvent water. In the solid state the adjacent layers are separated by dpdo units to form a 3D framework. Upon the excitation at 275 nm, the polymer 1 shows one emission peak at 430 nm in the solid state. CCDC: 922034. | |
| Keywords: coordination polymer cobalt(Ⅱ) crystal structure | |
| 投稿时间：2013-03-29 修订日期：2013-06-12 | |
| 摘要点击次数: 1870 | |
| 全文下载次数: 2380 | |
| 潘慧,柏,安冰,党东宾.一维配位聚合物{[Co(dpa)(H2O)4]·(dpdo)·(H2O)}n(H2dpa=2,2’-联苯二酸,dpdo=N,N’-二氧化-4,4’-联吡啶)的晶体结构和光谱性质[J].无机化学学报,2013,29(8):1710-1716. | |
| 查看全文 查看/发表评论 下载PDF阅读器 | |
| Support information: | |
|
| |
|
| |
|
| |