Synthesis and Crystal Structure of a New Zn(Ⅱ) Complex Exhibiting Strong Luminescence

The title complex,[Zn(ip)2(H2O)2][ZnCl4]·H2O·2DMF 1(ip=imidazo[4,5-f][1,10] phenanthroline),has been synthesized via the slow evaporation of concentrated reaction solution at room temperature.It was characterized by single-crystal X-ray diffraction.Crystal data for C32H36Cl4N10O5Zn2:white prism,0.17mm×0.15mm×0.10mm,monoclinic,space group P2/c,a=11.928(8),b=9.868(6),c=16.520(11),β=104.879(12)°,V=1879(2)3,Z=2,Mr=913.25,Dc=1.614 g/cm3,F(000)=932,μ=1.616 mm-1,λ(MoKα)=0.71073,GOOF=1.045,R=0.0710 and wR=0.1755 for 3055 observed reflections with Ⅰ2σ(Ⅰ).X-ray diffraction study reveals that the title complex has an interesting 3D architecture via hydrogen bonding interactions and π-π interactions.The IR,TGA,XRD and luminescent properties of complex 1 were also studied.     

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尊敬的邬学文教授:值此金秋十月,欣闻即将迎来您的八十华诞,波谱学专业委员会全体委员和波谱界同仁向您表示最诚挚的祝贺和良好的祝愿.邬先生作为国内核磁共振学科创始人之一,从事核磁共振的教学科研工作数十载,辛勤耕耘,硕果累累.您在上世纪60年代主持研制成我国第一台“超再生核四极共振波谱仪”、第一台“自旋回波波谱仪”以及宽谱线、高分辨率等多种核磁共振波谱仪,多次在全国展览会上展出并获奖,解决了当时许多实验室的设备问题.上世纪80年代初波谱学专业委员会成立以来,特别是从1988年至1996年您担任波谱学专业委员会主任期间,您兢兢…     

Metal-induced Coordination Networks Using a C_(2v)-based Hexacarboxylate Ligand:Syntheses,Structures and Properties

Metal-organic frameworks(MOFs), consisting of metal, anion and organic ligands, have attracted much attention. The structure of MOFs is affected by various factors. To explore the effects of metal ions, we synthesized six complexes, namely {[Me_2NH_2][Zn_4(H_2L)(L)]·2 H_2O·2 DMF}_n(1), {[Me_2NH_2]_2[Cd_2(L)]·2H_2O}_n(2), {[Me_2NH_2]_2[Ca_3(L)(μ-OH)_2(DMF)_2]·2H_2O}_n(3) and {[Me_2NH_2]_2[M_2(L)(μ-OH)]· H_2O·2DMF}_n(M = Co, 4; Ni, 5; Mn, 6), from a C_(2v)-based hexacarboxylate ligand([1,1';4',1']terphenyl-3,5,2',5',3',5'-hexacarboxylic acid(H_6L)) using metal-induced strategy. These MOFs were thoroughly characterized by single-crystal and X-ray diffraction, elemental analysis, Fourier-transform infrared spectra(FTIR) and photoluminescence.     

Syntheses,Structures and Magnetic Properties of Two Co(II) Coordination Polymers with 2,5-Pyridine Dicarboxylic Acid

1 INTRODUCTION Studies on the system comprising ions with un-quenched orbital angular moment have been ofinterest for many years in the design of new mole-cular magnetic materials[1～5], among which thecompounds of cobalt (II) ions are especially attrac…     

Synthesis and Characterization of a Novel Hydrogen-Bonded Three-dimensional Porous Co(II)Compound

1 INTRODUCTION The design and synthesis of micro-, meso-porous and other functional materials have generated considerable interest owing to their intriguing struc- tural topologies and potential applications in magne-tism, catalysis, electrical conducti…     

含MoFe3Se4类立方烷核芯簇合物的合成与结构表征

室温下［Ｅｔ_４Ｎ］_２ＭｏＳｅ_４, ＦｅＣｌ_２和 Ｒ_２ＮＣＳ_２Ｎａ在 ＤＭＦ和 ＣＨ_３ＣＮ混合溶剂中反应,得到含ＭｏＦｅ_３Ｓｅ_４核芯的Ｍｏ－Ｆｅ－Ｓｅ簇合物ＭｏＦｅ_３Ｓｅ_４（μ－Ｒ_２ＮＣＳ_２）_２（Ｒ_２ＮＣＳ_２）_４（Ｒ２＝Ｍｅ_２（１）,Ｅｔ_２（２）,Ｃ_４Ｈ_８（３））．化合物２的单晶Ｘ射线衍射分析表明,其分子结构为２个桥式和４个螫合Ｅｔ_２ＮＣＳ_２~－配体包围的一个扭曲类立方烷Ｍ_４Ｓｅ_４簇核对３个化合物的ＣＶ进行了表征,它们在ＤＭＳＯ溶液中的电化学行为表现出了多电子可逆的传递过程．     

局域结构依赖的稀土上转换发光

稀土掺杂上转换发光纳米材料作为一种新型的荧光材料,因其发光性能优异、化学性质稳定以及自发荧光干扰小等优点受到国内外研究者的广泛关注.如何实现稀土上转换发光性能的可控调节一直是稀土纳米发光材料研究中的一个热点问题.简要总结了近年来关于局域结构依赖的稀土上转换发光性能的研究进展,分别从结构设计和晶体结构调节两个方面展开,主...     

手性配体在钯催化不对称碳氢键活化反应中的应用

目前,手性配体辅助钯催化的区域和对映选择性碳氢键活化是过渡金属催化的前沿领域.在过去的十年中,它作为一种越来越重要的合成工具,用于合成含有各种不对称元素(中心手性、轴手性和平面手性)的手性分子,也是快速构建各种碳碳键和碳杂原子键的最有效方法之一.本文介绍了一些典型手性配体在钯催化不对称sp2和sp3碳氢键活化/官能团化...     

基于半刚性配体的柔性超微孔金属有机骨架的合成及其尺度选择性二氧化碳捕获

基于半刚性的配体3′,5′-di(1H-1,2,4-triazol-1-yl)-(1,1′-biphenyl)-3,5-dicarboxylic acid (H₂DTBDA)和硝酸钴制备了一个柔性超微孔的金属有机骨架{[Co(DTBDA)]·4H₂O}_n (FJI-H35),并对该材料的结构进行了系统的表征。FJI-H35活化以后可以发生自适应的结构转变,使得孔径从0.43 nm收缩到0.37 nm。气体吸附测试表明FJI-H35可以从氮气和甲烷中选择性捕获二氧化碳,具有很高的吸附选择性和相对低的吸附焓。突破实验进一步证实FJI-H35可以从二氧化碳/氮气(15∶85,V/V)和二氧化碳/甲烷(50∶50,V/V)混合气中高效选择性捕获二氧化碳。