一种钴-取代型有机-无机杂化三维超分子多酸:合成、结构与表征  

A 3D cobalt-substituted organic-inorganic hybrid supramolecular polyoxometalate: synthesis, structure and characterization

作　　者：孙玮 赵海燕 白杰 王利 SUN Wei;ZHAO Haiyan;BAI Jie;WANG Li(School of Physics and Materials Engineering,Dalian Minzu University,Dalian 116600,Liaoning,China)

机构地区：[1]大连民族大学物理与材料工程学院,辽宁大连116600

出　　处：《化学研究》2019年第1期42-48,共7页Chemical Research

基　　金：国家自然科学基金(21501021);大连民族大学大学生创新创业训练计划项目(校级201712026564和201812026347)

摘　　要：在水热条件下,成功合成了一例过渡金属钴修饰的有机-无机杂化Dawson型三维超分子多金属磷钨酸簇合物[Co(dap)_3]_2[H_2P_2W_(18)O_(62)]·11H_2O (1)(dap=1,2-丙二胺),采用X射线单晶衍射、元素分析、红外光谱及热重分析对化合物进行了结构分析和基本表征.化合物1属于正交晶系,Pnma空间群,单胞参数为a=2.688 92(7) nm,b=2.176 67(6) nm,c=1.480 93(5) nm,α=β=γ=90°.从超分子化学的角度来看,化合物1中的饱和Dawson型簇阴离子和金属-有机复合物之间通过广泛的氢键作用,进而形成有趣的4,8-连接的三维超分子网络结构.A new 3D cobalt-substituted Dawson-type organic-inorganic hybrid supramolecular polyoxometalate,[Co(dap)3]2[H2P2W18O62]·11H2O(1)(dap = 1,2-diaminopropane),has been prepared under hydrothermal conditions and characterized by elemental analysis,IR spectroscopy,XRD,thermogravimetric(TG)analysis and X-ray single-crystal diffraction.It belongs to Orthorhombic and Pnma space group,and the cell parameters are a = 2.688 92(7)nm,b = 2.176 67(6)nm,c = 1.480 93(5)nm,α=β=γ= 90°.From the viewpoint of supramolecular chemistry,the saturated Dawson-type polyoxoanions and cobalt(II)-dap complexes in 1 can be further extended to interesting 4,8-connected 3-D frameworks via extensive hydrogen-bonding interactions.

关 键 词：有机-无机杂化 水热合成 超分子 

分 类 号：O614[理学—无机化学]