Ionothermal Synthesis,Structure and Luminescent Properties of a New 2-D Bismuth(Ⅲ) Coordination Polymer with(6,5)-Connected Topological Sheet  

作　　者：FENG Yu-Quan CHEN Shu-Yang  WANG Lu XING Zheng-Zheng 冯玉全;陈书阳;王璐;邢正正(College of Chemistry and Pharmacy Engineering,Nanyang Normal University)

机构地区：College of Chemistry and Pharmacy Engineering, Nanyang Normal University, Nanyang 473061, China

出　　处：《Chinese Journal of Structural Chemistry》2018年第10期1656-1662,共7页结构化学（英文）

基　　金：Project supported by the National Natural Science Foundation of China(No.21601095)

摘　　要：A new 2-D Bi（3＋） coordination polymer {Bi4（μ3-O）2（μ4-O）2（C7H3NO4）2}n（1,C7H3NO4 = pyridine-2,6-dicarboxylate） containing（6,5）-connected topological sheet with the Schl？fli symbol of（4~4·6~3·8~4·12~4）（4~5·6~4·8） has been synthesized by an ionothermal method using the ionic liquid 1-ethyl-3-methylimidazolium bromide（[Emim]Br） as solvent,and characterized by C,H and N elemental analysis,energy-dispersive X-ray spectroscopy（EDS）,infrared spectrum（IR spectrum） and single-crystal X-ray diffraction.The results indicate that 1 belongs to the monoclinic system,space group P21/n with a = 13.766（7）,b = 4.142（2）,c = 16.439（8） ？,β = 99.099（9）°,Z = 2,V = 925.6（8） ？~3,Dc = 4.414 g·cm^（-3）,F（000） = 1064,μ = 37.985 mm-1,the final R = 0.0326,wR = 0.0727 and S = 1.022.The molecular structural units [Bi4（μ3-O）2（μ4-O）2（C7H3NO4）2] are connected to each other via bridging O atoms,extending into an interesting 2-D layered structure.These resulting layers are further assembled by weak C-H…O hydrogen bonds into a 3-D supramolecular architecture.Moreover,its thermal stability and the luminescent properties have been also studied.

关 键 词：Bi（III） coordination polymer （6 5）-connected topological sheet ionothermal synthesis luminescence decay 

分 类 号：O641.4[理学—物理化学]