摘要
以Sm(NO3)3·6H2O、Dy(NO3)3·6H2O、吡啶-2,5-二羧酸(H2pydc)为原料,用水热合成法合成了2个新的稀土金属配合物[Ln(pydc)2(H2O)5]·4H2O(Ln=Sm(1),Dy(2)),单晶结构经X单晶衍射仪分析确定,两种配合物的晶系均为单斜晶系,C2/c空间群。对晶体的性质进行元素分析、热重、红外光谱,荧光等分析。结果表明,配合物1和2在常温下表现出稀土离子相应的特征荧光发射。另外,本文对两种配合物进行了热稳定性及动力学分析。
Two new Lanthanide complexes [Ln（pydc）2（H2O）5]·4H2O（Ln=Sm （1）, Dy （2）） were obtained by the hydrothennal reactions of Ln（NO3）3·6H2O, pyridine-2,5-dicarboxylic acid （H2pydc） with 1：1 mole ratio. Single- crystal X-ray diffraction analysis reveals that both the crystals belong to monoclinic,space group C2/c. The structure and property of complexes have been characterized by elemental analysis, thermal analyses, IR spectra and Fluorescence. The single crystal structures show that the two complexes are isomorphic and have zero- dimensional structures and hydrogen bonds result in three-dimensional supramolecular structures, the coordination number of central ion Ln（Ⅲ） is nine. The complex 1 and 2 exhibit intense luminescence in the liquid state at room temperature. CCDC： 869044, 1; 874032, 2.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2013年第7期1497-1503,共7页
Chinese Journal of Inorganic Chemistry
基金
西安工程大学校科研启动基金(No.BS0902)资助项目
关键词
稀土
配合物
羧酸
水热合成
荧光性质
lanthanide
coordination complex
carboxylic acid
therrnalsynthesis
fluorescence
作者简介
通讯联系人。E-mail：xiefengxia2010@126．com
