摘要
在溶剂热条件下,利用含氮、氧杂原子有机配体N',N‴-((2E,3E)-butane-2,3-diylidene)bis(4-hydroxybenzohydrazide)(L1)、2,4,5-三氟-3-甲氧基苯甲酸(L2)以及菲咯啉(Phen)自组装反应合成了2个新的铀酰配合物[UO_(2)(L1)(CH_(3)COO)]·3CH_(3)OH(C1)、[UO_(2)(L2)(Phen)(CH_(3)O)](C2),通过元素分析、红外光谱以及X射线单晶衍射等表征了配合物结构。结果表明,2个配合物中的U均为+6价,配合物C1和C2中铀离子分别采取八配位和七配位模式,C1通过丰富的O—H…O氢键作用形成一维无限链状结构,C2中存在π-π堆积作用。研究了配合物的热稳定性和光谱性质,并且对其结构进行理论计算,探讨了配合物的动力学稳定性。
Under solvothermal conditions,two new UO_(2)^(2+)complexes[UO_(2)(L1)(CH_(3)COO)]·3CH_(3)OH(C1)and[UO_(2)(L2)(Phen)(CH_(3)O)](C2)were synthesized by self-assembly with organic ligand containing N and O atom(L1=N',N‴-((2E,3E)-butane-2,3-diylidene)bis(4-hydroxybenzohydrazide),L2=2,4,5-trifluoro-3-methoxybenzoic acid,Phen=phenanthroline).The structure of the complexes was characterized by elemental analysis,infrared spectra and X-ray single crystal diffraction.The results show that the uranium ions in complexes C1 and C2 are all+6 valence.The uranium ions in complexes C1 and C2 adopt eight-and seven-coordinated modes,respectively.C1 forms a onedimensional infinite chain structure through abundant O—H…O hydrogen bonds,and there areπ-πstacking inter-actions in C2.The thermal stability and spectral properties of the complexes were studied,and the structures of the complexes were calculated theoretically.The dynamic stability of the complexes was discussed.CCDC:2077418,C1;2077419,C2.
作者
蒋伍玖
李骜典
唐铭豪
南小龙
谭延亮
谭宇星
JIANG Wu-Jiu;LI Ao-Dian;TANG Ming-Hao;NAN Xiao-Long;TAN Yan-Liang;TAN Yu-Xing(Key Laboratory of Functional Metal-Organic Compounds of Hunan Province,Key Laboratory of Functional Organometallic Materials,University of Hunan Province,Hunan Provincial Engineering Research Center for Monitoring and Treatment of Heavy Metals Pollution in the Upper Reaches of Xiangjiang River,College of Chemistry and Materials Science,Hengyang Normal University,Hengyang,Hunan 421008,China;Nuclear Bureau of Hunan Province Nuclear Industry Brigade 306,Hengyang,Hunan 421008,China;Hunan Provincial Engineering Research Center for Uranium Mineral Exploration Technology,College of Physics and Electronic Engineering,Hengyang Normal University,Hengyang,Hunan 421002,China)
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2021年第12期2209-2218,共10页
Chinese Journal of Inorganic Chemistry
基金
“铀矿勘查技术”湖南省工程研究中心开放基金项目(No.YK20K03)资助。
关键词
铀酰配合物
合成
晶体结构
性质
UO22+complex
synthesis
crystal structure
property
