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Chemical Research in Chinese Universities 2019年第5期35卷 745-746页

作者： XU Jialiang bu xian-he School of Materials Science and Engineering National Institute for Advanced MaterialsTianjin Key Laboratory of Metal and Molecule-based Material ChemistryNankai UniversityTianjin 300350P.R.China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071P.R.China

*** Yingwei and his coworker from Jilin University reported an entirely new kind of macrocyclic arene, namely geminiarene, featuring two different but interconvertible molecular configurations. Taking advantage of the dual/gemini confonnational feature and the unique host-guest property of geminiarene, they developed unitary and dual guest selective adsorption/separation systems, in particular toward chlorobenzene and chlorocyc 1 ohexane.

关键词： Geminiarene Macrocyclic Arene YANG Yingwei

Zinc-coordination Polymers Based on a Donor-acceptor Mix-ligand System:Syntheses,Crystal Structures and Photophysical Properties

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Chemical Research in Chinese Universities 2020年第1期36卷 74-80页

作者： QIAN Binbin CHANG Ze bu xian-he School of Materials Science and Engineering National Institute for Advanced MaterialsTianjin Key Laboratory of Metal and Molecule-based Material ChemistryNankai UniversityTianjin 300350P.R.China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin 300071P.R.China Collaborative Innovation Center of Chemical Science and Engineering(Tianjin) Tianjin 300072P.R.China State Key Laboratory of Structural Chemistry Fujian Institute of Research on the StructureChinese Academy of SciencesFuzhou 350002P.R.China

By employing an electron-rich tricarboxytriphenyl amine as donor ligand and electron-deficient 2,4,6-tris(pyridin-4-yl)-1,3,5-triazine as acceptor ligand to assemble with Zn2+ions,three new coordination polymers were successfully synthesized and characterized *** compounds with different structures were obtained by regulating the reaction solvent,and the effect of the reaction solvent on the synthesis of crystals was ***,the photophysical properties of the compounds were investigated.

关键词： Coordination polymer Donor-acceptor interaction Tricarboxytriphenyl amine 2,4,6-Tris(pyridin-4-yl)-1,3,5-triazine

Electrochromic Two-dimensional Covalent Organic Framework with a Reversible Dark-to-transparent Switch

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Chemical Research in Chinese Universities 2021年第1期37卷 185-186页

作者： XU Jialiang bu xian-he School of Materials Science and Engineering Nankai UniversityTianjin300350P.R.China

Electrochromic(EC)materials with a dark-to-transmissive switch have potential applications in optical communications,infrared wavelength detectors for spacecraft,and infrared camouflage ***,Yu et *** an innovative low-voltage dark-to-transparent switchable electrochrome based on a donor-acceptor two-dimensional covalent organic framework(COF)*** compound can be facilely processed in a large-area thin film,which allows for the wide applications in smart displays,windows,and *** work has been published online in Nature Communications on November 2nd,2020.

关键词： transparent Framework smart

A Scalable Pillar Layered Metal-Organic Framework for Natural Gas Purification

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Chemical Research in Chinese Universities 2024年第4期40卷 675-681页

作者： LU Nan LAN Lan GAO Qiang LI Na bu xian-he School of Materials Science and Engineering Nankai UniversityTianjin300350P.R.China State Key Laboratory of Elemento-Organic Chemistry College of ChemistryNankai UniversityTianjin300071P.R.China School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang212003P.R.China

One-step harvest of high-purity methane(CH_(4))from ternary propane/ethane/methane(C_(3)H_(8)/C_(2)H_(6)/CH_(4))mixtures remains a desirable yet challenging goal for natural gas ***,adsorbents either suffer from high capacity and selectivity,or are caught in a dilemma of scalable ***,we demonstrate a scalable pillar layered metal-organic framework Ni-MOF for highly efficient one-step CH_(4)***-MOF exhibits high C_(2)H_(6)and C_(3)H_(8)uptakes of 83.3 and 86.1 cm^(3)/g at 298 K and 100 kPa and remarkable C_(2)H_(6)/CH_(4)(50/50,volume ratio,21.5)and C_(3)H_(8)/CH_(4)(50/50,volume ratio,212.0)***,high C_(2)H_(6)(42.2 cm^(3)/g at 10 kPa)and C_(3)H_(8)(64.7 cm^(3)/g at 5 kPa)capacities in the low-pressure region at 298 K were realized on Ni-MOF,suggesting the strong affinities of Ni-MOF towards C_(2)H_(6)and C_(3)H_(8).Furthermore,the dynamic breakthrough experiments revealed that purifying CH_(4)from natural gas in one-step can be achieved in Ni-MOF with high-purity(>99.8%)and productivity(346.0 cm^(3)/g).Most significantly,the production of Ni-MOF can be scalably synthesized at room temperature,rendering it promising potential for industrial *** combined advantages of exceptional separation performance,scalability,and cycle stability of Ni-MOF pave the way for one-step CH_(4)purification from natural gas.

关键词： Metal-organic framework Adsorption and separation Natural gas purification Scale-up synthesis

Photo Switchable Two-step Photochromism in a Series of Ln-Phosphonate(Ln=Dy,Gd,Tb,Y)Dinuclear Complexes

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Chemical Research in Chinese Universities 2022年第1期38卷 58-66页

作者： HU Ji-xiang ZHANG Qian XIA Bin LIU Tao PANG Jiandong bu xian-he School of Materials Science and Engineering Nankai UniversityTianjin 300350P.R.China College of Chemistry and Chemical Engineering Qingdao UniversityShandong 266071P.R.China State Key Laboratory of Fine Chemicals Dalian University of TechnologyDalian 116024P.R.China

Exploring the discrete complexes with multi-step coloration is still a challenge in the field of electron transfer photochromic materials. herein, we synthesized a series of dinuclear Ln-diphosphonate compounds[Ln=Dy(1);Gd(2);Tb(3);Y(4)] with a remarkably and reversibly photoactive coloration phenomenon. These compounds showed two-step coloration behavior, which were the first discrete architectures in the reported electron transfer photochromic complexes. This two-step coloration phenomenon was originated from the large distortion of H3-TPT acceptors, which in turn reduced the π-conjugation of electron acceptors and slowed the decay process of electron transfer. The photogenerated stable doublet radicals originated from electron transfer from diphosphonate donor to polypyridine acceptor in these complexes were detected by UV-Vis and electron spin resonance(ESR) spectra. Furthermore, the photogenerated radicals were estimated by direct current magnetic susceptibilities and variable temperature ESR spectra, suggesting the doublet radicals in the dinuclear structure for all the compounds. This work revealed a series of discrete phosphonate-based systems with a multi-step coloration process, providing a new pathway for designing multicolor photochromic materials with potential photoswitching or other applications.

关键词： Discrete structure Donor-acceptor system Doublet radical Photomagnetism Two-step photochromism

Synthesis and Structural Characterization of Chiral [(n-bu)_4N]_2[Mo_2O_5(OC_(10)H_6O)_2]

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Chemical Research in Chinese Universities 2002年第2期18卷 228-232页

作者： LU Xiao-ming ZHOU Yin-zhaung LIU Shun-cheng MAO xian bu xian-he Wuhan Institute of Physics and Mathematics Chinese Academy of ScienceWuhan 431714.P.R.China Department of Chemistry Capital Narmal UniversityBeijing 100037P.R.China Department of Chemistry Nankai UniversityTianjin 300071P.R.China

The expension of the coordination chemistry of polyoxomolybdates is attributed to the solubility of the polyoxometallic anions in organic solvents and coordination ability of them as characteristic metal ligands in organo-metallic reactions, for example, the study of catalysis mechanism based upon organo-polyoxomolybdate derivatives~[1-3]. Various coordination modes have been reported for binuclear molybdenum-oximate complexes, such as [ Mo_2O_3 ]~(4+), [ MoA ]~(2+), [ Mo_2O_6 ]~° and [Mo_2O_5]~(2+[4-6]). but it is rarely to find the report on binuclear molybdate dinegative anion with the geometry of two face-shared MoO_6 octahedra coordinated with the oxomate ligand.

关键词： 2.3-Dihydroxynaphthalene Binuclear Tetranuelear Organo-molybdate derivative Crystal

Three interpenetrated copper(Ⅱ) coordination polymers based on a V-shaped ligand:Synthesis,structures,sorption and magnetic properties

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Science China Chemistry 2011年第9期54卷 1446-1453页

作者： ZHANG XiaoFeng YANG Qian ZHAO JiongPeng HU Tong-Liang CHANG Ze bu xian-he Tianjin Key Laboratory of Metal & Molecule-based Material Chemistry Department of ChemistryNankai UniversityTianjin 300071China

Three new CuⅡ coordination polymers,[Cu2(oba)2(H2O)(DMF)].3H2O(1),[Cu4(oba)4(DMF)4].***(2) and [Cu2(oba)(hmp)2](3)(H2oba = 4,4'-oxybis(benzoic acid),Hhmp = 2-pyridine methanol,DMF = N,N'-dimethylformamide) were synthesized by solvothermal reactions and characterized by single-crystal X-ray *** complexes 1 and 2 take three-dimensional(3D) three-fold interpenetrating PtS topology with 1D *** complex 3,Cu4 clusters were formed by the chelating hmp ligands,and then the clusters were further linked by oba ligands to form a 3D three-fold interpenetrating dia topology *** 2,N2 sorption shows type I isotherm with BET surface areas of 562 m2 g-1 and Langmuir surface area of 747 m2 g-1,*** 77 and 87 K,the hydrogen uptakes of complex 2 are 0.89 wt% and 0.57 wt%,*** investigation showed the ferromagnetic coupling between CuII ions and very weak antiferromagnetic interaction between Cu4 clusters in complex 3.

关键词： copper(Ⅱ) MOF interpenetration sorption magnetic properties

Syntheses,Spectral Characterization of the Nickel(Ⅱ) Complexes of Macrocyclic Dioxotetraamine and the Effect of the Functional Pendant Arms on their Properties

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Chinese Journal of Structural Chemistry 1999年第1期18卷 16-23页

作者： ZHANG Zhi Hui bu xian he CAO Xi Chuan WANG Chuan Zhong CheN Rong Ti Department of Chemistry Nankai UniversityTianjin 300071

A series of new macrocyclic dioxo 13 aneN 4 bearing various functional pendants, 2 methylfuran (LF), 2 methylthiophene (LT), 2 methylpyridine (LP), have been synthesized and characterized, where dioxo 13 aneN 4 is 1,4,7,10 tetraazacyclotridecane 11,13 dione. The solution behaviours of the nickel(Ⅱ) complexes have been studied by Uv vis, cyclic voltammetric techniques. The red shifts were observed for the absorption band maxima of the electronic spectra from NiLR 1 to NiLR 2 (R=2 methylfuran, 2 methylthiophene, 2 methylpyridine). The value of E 1/2 of the NiLR 2 is less than NiLR 1 and both of them are lower than that of the nickel(Ⅱ) complex of the unsubstituted ligand, and these reasons are discussed.

关键词： macrocyclic dioxotetraamines nickel(Ⅱ) complex functional pendant cyclic voltammetric techniques

Synthesis, Characterization and Properties of Lanthanide Nitrate Complexes with Isonicotinoyl Hydrazone

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Journal of Rare Earths 2001年第1期19卷 70-73页

作者：卜显和高育新陈巍刘河张若桦 Nankai Univ Dept Chem Tianjin 300071 Peoples R China Peking Univ State Key Lab Rare Earth Mat Chem & Applicat Beijing 100871 Peoples R China

Some light-lanthanide nitrate complexes were obtained by the reaction of lanthanide nitrate with isonicotinoyl hydrazone (HL = N,N'-diisonicotinoyl-2-hydroxy-5-methyl-isophthalaldehyde dihydrazone) in methanol. The general formula of the complexes is Ln(L) (NO3)(2) . nH(2)O(Ln = La, Ce, Pr, Nd and Sm; n = 0, 1). The complexes were characterized by elemental analyses, conductance, thermal analyses, UV and IR spectra. The results show that the lanthanide ion in each complex is coordinated by oxygen and nitrogen atoms of the ligand (L) and the oxygen atoms of the nitrate. The amide-oxygen atoms of L coordinate to the Ln ions in its keto-form. The magnetic susceptibility of the neodymium complex shows that the magnetic data obey Curie-Weiss law in the range of 75K < T < 300K.

关键词： rare earths lanthanide complexes isonicotinoyl hydrazone synthesis characterization

联吡啶Ir(Ⅲ)配合物电子结构及光谱性质的理论研究

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高等学校化学学报 2008年第12期29卷 2393-2397页

作者：魏子章王贵昌卜显和南开大学化学学院天津300071

采用密度泛函理论(DFT)对配合物Ir(ppy)2(N^N)+[ppy=2-phenylpyrine,N^N=bpy=2,2′-bipyridine(1);N^N=H2dcbpy=4.4′-dicarboxy-2,2′-bipyridine(2),N^N=Hcmbpy=4-carboxy-4′-methyl-2,2′-bipyridine(3)]的基态和激发态几何构型进行优化,通过TDDFT/B3LYP方法得到这些化合物在乙腈溶液中的吸收光谱和磷光发射光谱及其跃迁性质.研究结果表明,化合物1(384nm),2(433nm)和3(413nm)最低的吸收谱被指认为MLCT/LLCT[dIr+π(ppy)→π*(N^N)]电荷跃迁.化合物1(486nm),2(576nm)和3(567nm)最低的磷光发射可以描述为[dIr+π(ppy)]→[π*(N^N)]跃迁.这是由于联吡啶配体上吸电子基团的引入,稳定了相应的空轨道,导致了化合物2和3的吸收和发射光谱红移.同时,化合物非线性光学性质的计算结果表明,三种化合物均具有较大的一阶超极化率(β),联吡啶配体中吸电子基团的增加,使得分子内电子转移增强,导致一阶超极化率增大.

关键词：环状金属铱(Ⅲ)配合物含时密度泛函理论电荷转移激发态