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Three New Compounds Derived from Nitrofurantoin: X-Ray Structures and Hirshfeld Surface Analyses
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作者 Hao Wang hongping xiao +2 位作者 Na Liu Bo Zhang Qian Shi 《Open Journal of Inorganic Chemistry》 2015年第3期63-73,共11页
The polymorphism of nitrofurantoin (NF), 1), the cocrystals of NF:2,2’-bipyridyl = 2:1, 2) and NF: 1,10-phenanthroline = 1:1, 3) have been prepared and characterized. The crystal structure analyses show that there ar... The polymorphism of nitrofurantoin (NF), 1), the cocrystals of NF:2,2’-bipyridyl = 2:1, 2) and NF: 1,10-phenanthroline = 1:1, 3) have been prepared and characterized. The crystal structure analyses show that there are various weak forces among the molecules, such as C/N-H···O, N-H···N hydrogen bond interactions and π···π/lone pair stacking interactions, which play a key role in the assembly of supramolecular networks. A thorough analysis of Hirshfeld surfaces and fingerprint plots facilitates a comparison of intermolecular interactions in 1 - 3, which are crucial in building supramolecular architectures. 展开更多
关键词 NITROFURANTOIN CO-CRYSTALS INTERMOLECULAR INTERACTIONS X-RAY Structures Hirshfeld Surface
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Spin switching in corrole radical complex
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作者 Chunyan Yu hongping xiao +1 位作者 Hua Lu Yongshu Xie 《Chinese Chemical Letters》 SCIE CAS CSCD 2024年第1期1-2,共2页
Spintronics is a cutting-edge field of developing new electronic devices by manipulating the electron spin and magnetic moment[1].Traditional spintronic research mainly focuses on transition metals and inorganic semic... Spintronics is a cutting-edge field of developing new electronic devices by manipulating the electron spin and magnetic moment[1].Traditional spintronic research mainly focuses on transition metals and inorganic semiconductors,while organic molecules have the advantage of being extremely easy to realize efficient spin control by modifying the specific external conditions for desired electronic structures and magnetic characteristics.Corrole,as a ring-contracted porphyrin,is the aromatic analog of the central macrocycle of vitamin Bi2.Corrole has a squeezed inner cavity and three inner NHs in its free-base form,making it easier to stabilize high-valent metal ions and thus a promising candidate in spintronics. 展开更多
关键词 CORROLE INNER RADICAL
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基于含铕金属-有机框架的比率turn-on型铝离子发光传感器(英文) 被引量:6
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作者 周馨慧 程嘉荟 +4 位作者 李亮 陈强 游宇健 肖洪平 黄维 《Science China Materials》 SCIE EI CSCD 2018年第5期752-757,共6页
本文制备了三种同构镧系金属有机框架材料(Me_2NH_2)[Ln_2L_2(NO_3)_2(μ_3-OH)(H_2O)]·2H_2O·2DMA,(Ln=Eu(1),Gd(2),Tb(3),H_2L=9-甲基-9-羟基-2,7-芴二羧酸,DMA=二甲基乙酰胺).研究结果显示它们具有三维阴离子型框架结构,... 本文制备了三种同构镧系金属有机框架材料(Me_2NH_2)[Ln_2L_2(NO_3)_2(μ_3-OH)(H_2O)]·2H_2O·2DMA,(Ln=Eu(1),Gd(2),Tb(3),H_2L=9-甲基-9-羟基-2,7-芴二羧酸,DMA=二甲基乙酰胺).研究结果显示它们具有三维阴离子型框架结构,该结构可简化为含有单一的8连接型节点的体心立方(bcu)型拓扑结构.化合物1表现出基于配体的荧光发射峰以及铕离子的特征荧光发射峰.荧光实验表明在DMF溶液中Al^(3+)会明显增强配体的荧光强度,而对Eu^(3+)的荧光强度影响却很小,这使得1成为了优秀的比率式发光Al^(3+)传感器.在Al^(3+)浓度处于0.02–0.1 mmol L^(-1)范围内时,配体与Eu^(3+)荧光强度的比值与Al^(3+)浓度成正比(斜率为18502 mol^(-1)L).本文证实了配体9位的羟基与Al^(3+)之间的相互作用是引起配体荧光增强的主要原因. 展开更多
关键词 光传感器 框架材料 金属有机 铕离子 比率 铝离子 AL^3+ 荧光发射峰
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