一维配位聚合物{[Co(dpa)(H2O)4]·(dpdo)·(H0))。(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.pdf

第29卷第8期
无机化学学报
2013年8月
CHINESE JOURNAL OF INORGANIC CHEMISTRY
1710-1716
维配位聚合物{[Co(dpa)(H2O)l(dpdo)…(H1O}a(Hdpa=2,2-联苯
酸,dpdo=NV,N?二氧化-4,4'-联吡啶)的晶体结构和光谱性质
潘慧柏类*安冰党东宾
(河南大学化学化工学院,河南省多酸化学重点实验室,开封475004)
摘要:采用水热合成法制备了一个一维配位聚合物ICo(dlpa)(H1O)小(dpdo)-(HO)n(1)Hdpa=2,2-联苯二酸,dpdo=N,W'-二氧化-
4,4'-联吡啶),通过红外光谱、紫外光谱、元素分析、XRPD、TCA和X-射线单晶行射进行了表征。Co()原子采取了畸变的八面体
构型,6个配位氧原子分別来自于2个dpa2配体和4个配位水分子。毎一个dpa2配体桥联2个CoD中心,毎一个CoD)原子与
2个dpa2-配体配位进而形成了2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…0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(⑩;晶体结构
中图分类号:0614.812
文献标识码:A
文章编号:1001-4861(2013)08-1710-07
DOI:10.3969jisn.1001-4861.2013.00.307
Crystal Structure and Spectral Properties of a One-dimensional Coordination
Polymer f[Co(dpa)(H,O) (dpdo)(H O)]n( H dpa=2, 2 -biphenyldicarboxylate,
dpdo=4, 4 -bipyridine-n, - dioxide
PAN Hui BAI Yan" AN Bing DANG Dong-bin
(Henan Key Laboratory of Polyoxometalate Chemis try, College of Chemistry and
Chemical Engineering, Henan University, Kaifeng, Henan 475004, China)
Abstract: A new Cof)coordination polymer Co( pa H 0)].(dpdo)(H,O))(1)(Hdpa=2, 2'biphenyldicarbox
late. dpdo=4, 4-bipyridine-m - 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(1)atom has a
distorted octahedral coordination environment with a set of oxygen donors from two dpa2-ligands and four
coordinated water molecules. Each dpa-ligand is bounded to two cobalt centers and each cobalt atom is
coordinated by two dpa- ligands thereby generating a 21 helical chain. The helical chains further interact with
each other and form a 2D network through multiform O-HO 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
Key word: coordination polymer; cobalt( I); crystal structure
The construction of coordination polymers via metal ions has attracted increasing interests, due to
self-assembly of predesigned ligands with appropriate the intriguing structure motifs and their potential
收稿日期:2013-03-29。收修改稿日期:2013-06-12
国家自然科学基金(No,2107104资助项目。
“通讯联系人。E-mil:baiyan@henu.edu.cn,dangdb@henu.edu.cn;会员登记号:S06007198M。