【摘要】 利用常温水溶液合成方法,采用过渡金属钴离子为桥连原子制得1种具有三维无机骨架结构的化合物(Hpip)2[{Co(H2O)4}4(H2W12O42)].10H2O(pip=piperazine).采用元素分析、红外光谱、热重分析和X射线单晶衍射技术对化合物进行了表征.晶体结构分析表明:[H2W12O42]10-为8齿配体,它的8个端氧原子与8个Co2+进行了配位,钴离子桥连2个[H2W12O42]10-阴离子,形成3D无机骨架;哌嗪分子和结晶水作为客体填充在孔道中,客体与骨架之间存在着大量的氢键.更多还原

【Abstract】 A new organic-inorganic hybrid composed of 3D pure inorganic framework and piperazine and water guests-(Hpip)2[{Co(H2O)4}4(H2W12O42)]·10H2O(pip=piperazine) was synthesized with conventional method and characterized by element analysis,infrared spectroscopy,thermal analysis and single-crystal X-ray diffraction techniques.In the compound,[H2W12O42]10-anion is eight-dentate ligand and coordinates to eight Co2+ ions;Co2+ ion acts as μ2-bridge which links two [H2W12O42]10-anions,and thus a 3D pure-inorganic framework is formed.Guests piperazine and lattice water molecules are filled in the chennals through forming a lot of hydrogen bonds with the framework.更多还原