【摘 要】
：
The complex [Eu(3-IBA)3·2,2-bipy]2 was synthesized from 3-iodobenzoic acid (3-HIBA), 2,2-bipyridine (2,2-bipy) and EuCl3·6H2O by hydrothermal synthesis, and i
【机 构】
：
Department of Chemistry
论文部分内容阅读
The complex [Eu(3-IBA)3·2,2-bipy]2 was synthesized from 3-iodobenzoic acid (3-HIBA), 2,2-bipyridine (2,2-bipy) and EuCl3·6H2O by hydrothermal synthesis, and its crystal structure was determined by X-ray single-crystal diffraction. It is of triclinic, space group P, with a = 10.958(2), b = 12.311(3), c = 12.556(3) (A), α = 81.549(3), β = 82.404(4), γ = 78.348(3)°, Mr = 1049.15, V = 1631.7(6) (A)3, Z = 1, Dc = 2.135 g/cm3, F(000) = 980, λ(MoKα) = 0.71073 A, μ(MoKα) = 4.804 mm-1, the final R = 0.0329 and wR = 0.0723 for 4640 observed reflections with I ＞ 2σ(I). The Eu(Ⅲ) ion is eight-coordinated and two Eu(Ⅲ) ions are held together by four 3-iodobenzoate groups in the bidentate bridging mode. The complex was characterized by DTA-TG, IR, UV and fluorescence spectra.
其他文献
通过对我国内部控制概念演变与发展的讨论,分析我国内控概念的创新,最后结合我国实际情况,提出进一步完善我国内部控制概念的几点建议.
目的 本研究探讨磁驱动主动脉内轴流泵动物体内植入手术-“田氏”植入法及实验结果。方法选取家猪33头,全麻后开胸手术暴露胸降主动脉和心脏。在降主动脉侧壁作切口与26-mm
一个建设项目的建设程序主要包括:项目建议书,可行性研究报告,设计文件,工程招投标,施工安装,工程监理,竣工验收等阶段.建设单位(项目法人)是项目建设的总组织者、总集成者,
骨性关节炎是一种常见病,据统计我国患病人数高于8 000万,目前关于该病的治疗仍然以关节置换为主.在体外特定的诱导条件下或体内特定环境下骨髓间充质干细胞可分化为骨、软骨
当前,德育教育在实施过程中遇到了不少困难,举步维艰.作为一名普通初中的政治教师,笔者也曾困惑、迷茫,所幸在长期实践中,不断摸索出一些有益的做法.概言之,首先,德育教育要
In recent years,Galium aparine L.has not been controlled by tribenuron-methyl in major Chinese winter wheat fields.The objective of this study is to understand
A series of new diethers were obtained by alkylation of furoin under microwave irradiation (MWI) in phase transfer catalysis (PTC) conditions. The products of a
We introduce a modified small-world network adding new links with nonlinearly preferential connection instead of adding randomly, then we apply Bak-Sneppen (BS)
A new dinuclear Tb(Ⅲ) 4-cyanobenzoate complex [Tb2(4-cba)6(phen)2] (4-Hcba = 4-cyanobenzoic acid and phen = 1,10-phenanthroline) 1 has been synthesized by solv
A novel ionic compound [Fe(CN)6(phCH2NC5H5)3]·(H2O)4(Mr = 794.71) has been synthesized and its structure was characterized by IR, elemental analysis and X-ray