新型镧系有机-无机杂化化合物的水热合成、晶体结构和发光性能研究  

Hydrothermal Synthesis,Crystal Structure and Fluorescent Property of Novel Rare Earth Inorganic-Organic Hybrid Materials

作　　者：李增和[1] 柳正文[1] 刘阳春[1] 

机构地区：[1]北京化工大学理学院,北京100029

出　　处：《稀土》2009年第2期20-24,34,共6页Chinese Rare Earths

摘　　要：采用水热法合成出两种新型稀土金属有机-无机杂化材料,[Ln(PW11O39)(H2O)2](H2bpy)2.6.5H2O[Ln=Eu(1),Gd(2);bpy=4,4′-联吡啶],并进行红外光谱分析和元素分析。采用单晶X-射线衍射法测定晶体结构,这两个晶体具有相同结构,均属三斜晶系,空间群为P(1)。它们皆由无机的共价链∞1[Ln(PW11O39)(H2O)2]4-和有机的二质子化4,4′-(H2bpy)2+及结晶水堆积而成。化合物(1)在395nm紫外光激发下,产生明显荧光谱带。Two novel rare earth inorganic- organic hybrid materials[Ln（PW11O39）（H2O）2]（H2bpy）2.6.5H2O[Ln=Eu（1）,Gd（2）;bpy=4,4′- bipyridyl] were synthesized by hydrothermal reaction and characterized by infrared spectrum, elemental analysis and singlecrystal X- ray diffraction. The two crystals are isostmetural and crystallize in the trichnic space group P（ - 1 ）. The crystals are pocked by inorganic covalent chain ∞1[Ln（PW11O39）（H2O）2]^4- , organic 4,4＇ - （H2bpy）^2＋ and crystal water. The compound（1） exhibited intense fluorescence at 395nm under UV excitation.

关 键 词：稀土金属 有机-无机杂化化合物 杂多酸 水热合成 晶体结构 发光性能 

分 类 号：O614.33[理学—无机化学] O482.3[理学—化学]