三个镧系金属氮氧自由基配合物的合成、结构及磁性（英文）  

Three Lanthanide Nitronyl Nitroxide Radical Compounds:Synthesises, Structures and Magnetic Properties

作　　者：胡鹏[1] 高媛媛[2] 肖凤仪[3] 邓肖娟[1] 黄国洪[1] 张淼[1] 苏芬[1] 王莉娜[1] HU Peng GAO Yuan-Yuan XIAO Feng-Yi DENG Xiao-Juan HUANG Guo-Hong ZHANG Miao SU Feng WANG Li-Na(College of Chemical Engineering, Inner Mongolia University of Technology, Hohhot 010051, China College of Chemistry and Chemical Engineering, Zhaoqing University, Zhaoqing, Guangdong 526061, China Obstetrics and Gynecology Hospital of Fudan University,Shanghai 200011, China)

机构地区：[1]肇庆学院化学化工学院,肇庆526061 [2]内蒙古工业大学化工学院,呼和浩特010000 [3]复旦大学附属妇产科医院,上海200011

出　　处：《无机化学学报》2017年第1期33-40,共8页Chinese Journal of Inorganic Chemistry

基　　金：内蒙古自然科学基金(No.2016BS0206);广东省教育厅青年创新人才项目(No.CQ2014064);广东省大创项目(No.201510580046,201610580046)资助

摘　　要：以氮氧自由基为配体,合成了3例氮氧自由基-稀土三自旋单核配合物[Ln(hfac)3(NIT-Ph-4-Br)2](Ln=Gd(1),Tb(2),Dy(3),hfac=六氟乙酰丙酮,NIT-Ph-4-Br=4,4,5,5-四甲基-2-(4′-溴)-咪唑啉-3-氧化-1-氧基自由基。单晶结构分析表明3个配合物均属单斜晶系P21/c空间群,配合物中的Ln髥离子为八配位模式,并且拥有相似的自由基-稀土-自由基单核结构。对配合物的磁性测试结果表明,配合物1中自由基与Gd髥离子之间存在着铁磁相互作用,自由基与自由基之间存在着反铁磁相互作用;配合物2,3中。Three lanthanide-nitronyl nitroxide radical compounds [Ln（hfac）3（NIT-Ph-4-Br）2] （Ln=Gd（1）, Tb（2）, Dy（3）, hfac=hexafluoroacetylacetonate, NIT-Ph-4-Br=2-（4＇-bromide）-4,4,5,5-tetramethyl-imidazoline-l-oxyl-3-oxide）have been successfully prepared and characterized by single crystal X-ray diffraction, IR spectroscopy andelemental analyses. Single crystal X-ray crystallographic analyses reveal that all these three compounds areisostructural and crystallize in the P2l/c space group, which are composed of one Ln （hfac）3 unit and two NIT-Ph-4-Br radicals. Magnetic studies reveal that ferromagnetic interactions and antiferromagnetic interactions coexist inGd complex and there are verynitroxide in Tb complex and Dyweak ferromagnetic interactions between Ln（m） ions and the coordinated nitronylcomplex. CCDC： 1496095, 1; 1496096, 2; 1496097, 3.

关 键 词：氮氧自由基 稀土 晶体结构 磁性 

分 类 号：O641.4[理学—物理化学]