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学者姓名：郑文旭
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Abstract ：
运用高温固相法合成系列掺铕(Eu)的氮化物荧光粉Ca_(1-)_xAlSiN_3∶xEu~(2+),对所得到的最佳样品Ca_(0.99)AlSiN_3∶0.01Eu~(2+)进行系列表征和结构精修.结果表明，样品Ca_(0.99)AlSiN_3∶0.01Eu~(2+)的晶粒尺寸为10μm左右，各元素分布均匀，其精修图与实测XRD谱图基本吻合，属于正交晶系结构.该样品的色坐标为(0.645 1, 0.354 5),落在红光区域，色纯度高达100%,相关色温为2 449 K,属于低色温.该荧光粉在298～473 K范围内表现出良好的热稳定性，活化能为0.26 eV,具有广阔的市场前景.
Keyword ：
Rietveld精修 Rietveld精修 发光性能 发光性能 热稳定性 热稳定性 红色荧光粉 红色荧光粉 铕掺杂 铕掺杂
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| GB/T 7714 | 林莹 , 刘梦丽 , 冯嘉雯 et al. 红色荧光粉CaAlSiN_3∶Eu~(2+)的结构精修和性能 [J]. | 福州大学学报(自然科学版) , 2024 , 52 (02) : 207-212 . |
| MLA | 林莹 et al. "红色荧光粉CaAlSiN_3∶Eu~(2+)的结构精修和性能" . | 福州大学学报(自然科学版) 52 . 02 (2024) : 207-212 . |
| APA | 林莹 , 刘梦丽 , 冯嘉雯 , 郑文旭 , 胡晓琳 , 庄乃锋 . 红色荧光粉CaAlSiN_3∶Eu~(2+)的结构精修和性能 . | 福州大学学报(自然科学版) , 2024 , 52 (02) , 207-212 . |
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以2,4-二氨基-6-甲基-1,3,5-三嗪和间苯二甲酸为原料合成了一例有机超分子材料,并测定了其单晶结构。该材料结晶于三斜晶系,空间群为P-1,晶胞参数为a=10.340 3(8)?,b=10.895 3(10)?,c=10.976 5(8)?,α=82.099(7)°,β=63.882(7)°,γ=68.051(8)°。两种原料分子之间发生了质子转移,相互之间存在着丰富的氢键作用,为整个体系提供了一个刚性的环境。发光光谱测试表明,该材料具有绿色室温磷光发射,且发光寿命长达1.32 s。
Keyword ：
2 2 3 3 4-二氨基-6-甲基-1 4-二氨基-6-甲基-1 5-三嗪 间苯二甲酸 晶体结构 室温磷光 5-三嗪 间苯二甲酸 晶体结构 室温磷光
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| GB/T 7714 | 郑文旭 . 一种纯有机超分子室温磷光材料的晶体结构及性能研究 [J]. | 化工时刊 , 2024 , 38 (04) : 22-25 . |
| MLA | 郑文旭 . "一种纯有机超分子室温磷光材料的晶体结构及性能研究" . | 化工时刊 38 . 04 (2024) : 22-25 . |
| APA | 郑文旭 . 一种纯有机超分子室温磷光材料的晶体结构及性能研究 . | 化工时刊 , 2024 , 38 (04) , 22-25 . |
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Abstract ：
室温磷光材料在传感器、成像、防伪等方面的应用而受到关注。本文以均苯三甲酸和胞嘧啶为原料，通过水热法合成出一例具有室温磷光性质的有机共晶。X射线单晶衍射表明，均苯三甲酸与胞嘧啶之间发生了质子转移，晶体结构中存在着丰富的氢键作用。利用X射线粉末衍射、热重分析、光致发光等手段测试了有机共晶的物理性能。结果表明，有机共晶具有出色的热稳定性，可达200℃，并表现出绿色发光的室温磷光，磷光寿命达到0.2s。
Keyword ：
均苯三甲酸 均苯三甲酸 室温磷光 室温磷光 晶体结构 晶体结构 有机共晶 有机共晶 胞嘧啶 胞嘧啶
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| GB/T 7714 | 郑文旭 . 有机共晶室温磷光材料的晶体结构及性能研究 [J]. | 化学工程师 , 2022 , 36 (10) : 89-91,95 . |
| MLA | 郑文旭 . "有机共晶室温磷光材料的晶体结构及性能研究" . | 化学工程师 36 . 10 (2022) : 89-91,95 . |
| APA | 郑文旭 . 有机共晶室温磷光材料的晶体结构及性能研究 . | 化学工程师 , 2022 , 36 (10) , 89-91,95 . |
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Metal-ligand axial coordination of zinc(II) phthalocyanines is an efficient strategy for regulation of structures and properties. In this work, we designed and prepared four unsubstituted zinc(II) phthalocyanine (ZnPc) dimer-based supramolecular complexes (1-4) via axtial coordination with bipyridine derivatives. Single crystal X-ray analysis revealed that the four novel complexes were dimeric (i.e. ZnPc-ligand-ZnPc), with H-shape for 1, saddle-like for 2, and Z-shapes for 3 and 4. It's interesting that a pair of saddle-like dimers of 2 crossed each other to form an interlocked tetramer structure. Furthermore, 3 and 4 were dense stacking because of their semirigid ligands, which significantly enhanced the intermolecular interactions. Intriguingly, in the crystal structure of 4, the naphthalimide ring of the ligand embedded into two neighboring phthalocyanine macrocycles, resulting in a slipped sandwich structure of ZnPc-naphthalimide-ZnPc with double pi center dot center dot center dot pi interactions. More importantly, the strong intermolecular interactions led to very broad absorption spectra in vis-NIR region, quenched fluorescence, and highly efficient photothermal effect. Upon irradiation, 3 and 4 could reach up to 85.7 degrees C and 89.2 degrees C, respectively, enabling them to serve as outstanding photothermal conversion materials used for photothermal imaging and therapy.
Keyword ：
Axial coordination Axial coordination Bipyridine Bipyridine Crystal structures Crystal structures Photothermal property Photothermal property Zinc(II) phthalocyanine Zinc(II) phthalocyanine
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| GB/T 7714 | Zhao, Yan , Zou, Kun-Qi , Zheng, Wen-Xu et al. Solid-state supramolecular structures and excellent photothermal activities of dimeric zinc(II) phthalocyanines axially bridged with bipyridine derivatives [J]. | DYES AND PIGMENTS , 2021 , 199 . |
| MLA | Zhao, Yan et al. "Solid-state supramolecular structures and excellent photothermal activities of dimeric zinc(II) phthalocyanines axially bridged with bipyridine derivatives" . | DYES AND PIGMENTS 199 (2021) . |
| APA | Zhao, Yan , Zou, Kun-Qi , Zheng, Wen-Xu , Huang, Chang-Cang , Zheng, Bi-Yuan , Ke, Mei-Rong et al. Solid-state supramolecular structures and excellent photothermal activities of dimeric zinc(II) phthalocyanines axially bridged with bipyridine derivatives . | DYES AND PIGMENTS , 2021 , 199 . |
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Abstract ：
Chiral compounds are known to be important not only because they are the fundamental components of living organisms, but also for their unique chiroptical properties. In recent years, scientists have fabricated several chiral organic supramolecular aggregates by using chiral physical fields, such as vortex flow. Herein, the relationship between dynamic chiroptical properties and rheological nature is discussed, suggesting the shear thinning properties of non-Newtonian fluids might help colloidal particles adopt a chiral arrangement in vortices. Furthermore, the storage modulus of colloids could be increased by adding a linking agent, which successfully kept the dynamic chiroptical properties in the static state. Moreover, the salt effect on the host-guest interaction involved in the colloids was studied, the results suggested a significant enhancement of the transferred dynamic circular dichroism for the achiral guest molecule.
Keyword ：
chirality retention chirality retention chirality transfer chirality transfer rheological properties rheological properties shear thinning shear thinning vortices vortices
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| GB/T 7714 | Huang, Jian-Cai , Xiao, Hui , Chen, Zhixin et al. Static Retention of Dynamic Chiral Arrangements for Achiral Shear Thinning Metal-Organic Colloids [J]. | CHEMISTRY-A EUROPEAN JOURNAL , 2021 , 27 (56) : 14017-14024 . |
| MLA | Huang, Jian-Cai et al. "Static Retention of Dynamic Chiral Arrangements for Achiral Shear Thinning Metal-Organic Colloids" . | CHEMISTRY-A EUROPEAN JOURNAL 27 . 56 (2021) : 14017-14024 . |
| APA | Huang, Jian-Cai , Xiao, Hui , Chen, Zhixin , Zheng, Wenxu , Huang, Chang-Cang , Wu, Shu-Ting et al. Static Retention of Dynamic Chiral Arrangements for Achiral Shear Thinning Metal-Organic Colloids . | CHEMISTRY-A EUROPEAN JOURNAL , 2021 , 27 (56) , 14017-14024 . |
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The title compound cytosinium isophthalate (C-H(2)IA) self-assembly of cytosine (C) and isophthalic acid (H(2)IA) in aqueous media has been synthesized and the crystal structure with a reasonable protonation state is redetermined. Single-crystal X-ray diffraction analysis reveals that each asymmetric unit contains one protoned cytosine molecule and one deprotoned isophthalic acid. The proton transferred from carboxylic acid to the pyrimidine ring is disordered across an inversion center with occupancy of 0.5 and the proton located to one of the carboxylate group lies on an inversion center shared by two crystallographically equivalent oxygen atoms. In addition, the cytosine molecules are connected by complementary hydrogen bonds to form a one-dimensional tape structure. The neighboring isophthalic acids are connected via hydrogen bonds between carboxyl groups to form a one-dimensional lattice like tape. Furthermore, the adjacent organic base tapes and organic acid tapes are stacked one with another through pi-pi stacking interactions to form a three-dimensional supramolecular structure. Interestingly, C-H(2)IA displays a green phosphorescence in solid state at room temperature with the lifetime of 0.7 s determined by time resolved studies, indicating that supramolecular C-H(2)IA is a potential pure organic phosphorescent luminogens.
Keyword ：
crystal structure redetermination crystal structure redetermination cytosinium isophthalate cytosinium isophthalate room temperature phosphorescence room temperature phosphorescence supramolecular framework supramolecular framework
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| GB/T 7714 | Zheng Wen-Xu , Li Tao , Xiang Zheng et al. Cytosinium Isophthalate: Crystal Structure Redetermination and Room Temperature Phosphorescence [J]. | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2020 , 39 (9) : 1707-1713 . |
| MLA | Zheng Wen-Xu et al. "Cytosinium Isophthalate: Crystal Structure Redetermination and Room Temperature Phosphorescence" . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY 39 . 9 (2020) : 1707-1713 . |
| APA | Zheng Wen-Xu , Li Tao , Xiang Zheng , Huang Chang-Cang . Cytosinium Isophthalate: Crystal Structure Redetermination and Room Temperature Phosphorescence . | CHINESE JOURNAL OF STRUCTURAL CHEMISTRY , 2020 , 39 (9) , 1707-1713 . |
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Two europium(III) coordination polymers (CPs), namely, poly[[diaquabis(mu(4)-1H-benzimidazole-5,6-dicarboxylato-kappa N-6(3):O-5,O-5 ':O-5,O-6:O-6 ')(mu(2)-oxalato-kappa O-4(1),O-2:O-1 ',O-2 ')dieuropium(III)] dihydrate], {[Eu-2(C9H4N2O4)(2)(C2O4)(H2O)(2)]center dot 2H(2)O}(n) (1), and poly[(mu(3)-1H-benzimidazol-3-ium-5,6-dicarboxylato-kappa O-5(5):O-5',O-6:O-6,O-6')(mu(3)-sulfato-kappa O-3:O ':O '')europium(III)], [Eu(C9H5N2O4)(SO4)](n) (2), have been synthesized via the hydrothermal method and structurally characterized. CP 1 shows a three-dimensional network, in which the oxalate ligand acts as a pillar, while CP 2 has a two-dimensional network based on a europium(III)-sulfate skeleton, further extended into a three-dimensional framework by hydrogen-bonding interactions. The structural diversity in the two compounds can be attributed to the different acidification abilities and geometries of the anionic ligands. The luminescence properties of 1 display the characteristic europium red emission with CIE chromaticity coordinates (2/3, 0.34). Interestingly, CP 2 shows the characteristic red emission with CIE chromaticity coordinates (0.60, 0.34) when excited at 280 nm and a near-white emission with CIE chromaticity coordinates (0.38, 0.29) when excited at 340 nm.
Keyword ：
anion-directed assembly anion-directed assembly coordination polymer coordination polymer crystal structure crystal structure europium(III) europium(III) luminescence luminescence threedimensional threedimensional two-dimensional two-dimensional
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| GB/T 7714 | Zheng, Wenxu , Wu, Kechen . Anion-directed assemblies of europium(III) coordination polymers based on 1H-benzimidazole-5,6-dicarboxylate: structures and luminescence properties [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2020 , 76 : 186-, . |
| MLA | Zheng, Wenxu et al. "Anion-directed assemblies of europium(III) coordination polymers based on 1H-benzimidazole-5,6-dicarboxylate: structures and luminescence properties" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 76 (2020) : 186-, . |
| APA | Zheng, Wenxu , Wu, Kechen . Anion-directed assemblies of europium(III) coordination polymers based on 1H-benzimidazole-5,6-dicarboxylate: structures and luminescence properties . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2020 , 76 , 186-, . |
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Abstract ：
The title compound cytosinium isophthalate (C-H2IA) self-assembly of cytosine (C) and isophthalic acid (H2IA) in aqueous media has been synthesized and the crystal structure with a reasonable protonation state is redetermined. Single-crystal X-ray diffraction analysis reveals that each asymmetric unit contains one protoned cytosine molecule and one deprotoned isophthalic acid. The proton transferred from carboxylic acid to the pyrimidine ring is disordered across an inversion center with occupancy of 0.5 and the proton located to one of the carboxylate group lies on an inversion center shared by two crystallographically equivalent oxygen atoms. In addition, the cytosine molecules are connected by complementary hydrogen bonds to form a one-dimensional tape structure. The neighboring isophthalic acids are connected via hydrogen bonds between carboxyl groups to form a one-dimensional lattice like tape. Furthermore, the adjacent organic base tapes and organic acid tapes are stacked one with another through π-π stacking interactions to form a three-dimensional supramolecular structure. Interestingly, C-H2IA displays a green phosphorescence in solid state at room temperature with the lifetime of 0.7 s determined by time resolved studies, indicating that supramolecular C-H2IA is a potential pure organic phosphorescent luminogens. © 2020 Fujian Institute of Research of the Structure of Matter. All rights reserved.
Keyword ：
Crystal structure redetermination; Cytosinium isophthalate; Room temperature phosphorescence; Supramolecular framework Crystal structure redetermination; Cytosinium isophthalate; Room temperature phosphorescence; Supramolecular framework
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| GB/T 7714 | Wen-Xu, Z. , Tao, L. , Zheng, X. et al. Cytosinium isophthalate: Crystal structure redetermination and room temperature phosphorescence [J]. | Jiegou Huaxue , 2020 , 39 (9) : 1707-1713 . |
| MLA | Wen-Xu, Z. et al. "Cytosinium isophthalate: Crystal structure redetermination and room temperature phosphorescence" . | Jiegou Huaxue 39 . 9 (2020) : 1707-1713 . |
| APA | Wen-Xu, Z. , Tao, L. , Zheng, X. , Chang-Cang, H. . Cytosinium isophthalate: Crystal structure redetermination and room temperature phosphorescence . | Jiegou Huaxue , 2020 , 39 (9) , 1707-1713 . |
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A novel stilbene-based salicylhydrazone compound {systematic name: (E)-4,4'-(ethene-1,2-diyl)bis[(N'E)-N'-(2-hydroxybenzylidene)benzohydrazide] dimethyl sulfoxide disolvate, C30H24N4O4 center dot 2C(2)H(6)OS or L center dot 2DMSO} was synthesized and characterized by single-crystal X-ray diffraction, powder X-ray diffraction and luminescence spectroscopy. The title compound crystallizes in the monoclinic space group P2(1)/c, with half a symmetry-independent L molecule and one dimethyl sulfoxide (DMSO) solvent molecule in the asymmetric unit. The L molecule adopts an almost planar structure, with a small dihedral angle between the planes of the stilbene and salicylhydrazone groups. There are multiple pi-pi stacking interactions between adjacent L molecules. The DMSO solvent molecules act as proton donors and acceptors, forming hydrogen bonds of various strengths with the L molecules. In addition, the geometry optimization of a single molecule of L and its luminescence properties either in solution, as a solvated solid or as a desolvated solid were studied. The compound shows an aggregation-induced emission (AIE) effect and exhibits switchable luminescence colouration in the solid state by the simple removal or re-addition of the DMSO solvent.
Keyword ：
crystal structure crystal structure luminescence luminescence salicylhydrazone salicylhydrazone stilbene stilbene
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| GB/T 7714 | Fang, Zong-Bin , Zhang, Bin , Yang, Qi-Zheng et al. Solvent-assisted planar structure of a stilbene-based salicylhydrazone compound: crystal structure, solvent- and aggregation-induced emission, and switchable luminescence colouration [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2020 , 76 : 734-, . |
| MLA | Fang, Zong-Bin et al. "Solvent-assisted planar structure of a stilbene-based salicylhydrazone compound: crystal structure, solvent- and aggregation-induced emission, and switchable luminescence colouration" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 76 (2020) : 734-, . |
| APA | Fang, Zong-Bin , Zhang, Bin , Yang, Qi-Zheng , Zheng, Wenxu , Hu, Xiao-Lin , Huang, Xi-He et al. Solvent-assisted planar structure of a stilbene-based salicylhydrazone compound: crystal structure, solvent- and aggregation-induced emission, and switchable luminescence colouration . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2020 , 76 , 734-, . |
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A rare porous zinc-organic framework with ultrahigh thermal stability over 500 degrees C was obtained, which exhibits a CaF2-type topology formed by 8-connected tetranuclear Zn-4 clusters and 4-connected phosphonocarboxylate ligands. Interestingly, the similar reactions to the zinc-organic framework but in the absence of H2O or by the replacement of Zn2+ with Co2+ can yield three different 3D cluster-based frameworks but with the same CaF2-type topology. (C) 2017 Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences. Published by Elsevier B.V. All rights reserved.
Keyword ：
Gas adsorption Gas adsorption Metal-organic framework Metal-organic framework Phosphonocarboxylate ligand Phosphonocarboxylate ligand Stability Stability Structural transformation Structural transformation
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| GB/T 7714 | Qi, Yan-Jie , Liu, Jin-Hua , Zheng, Wen-Xu et al. A rare porous zinc phosphonocarboxylate framework with high thermal stability and interesting structural transformation [J]. | CHINESE CHEMICAL LETTERS , 2018 , 29 (6) : 959-962 . |
| MLA | Qi, Yan-Jie et al. "A rare porous zinc phosphonocarboxylate framework with high thermal stability and interesting structural transformation" . | CHINESE CHEMICAL LETTERS 29 . 6 (2018) : 959-962 . |
| APA | Qi, Yan-Jie , Liu, Jin-Hua , Zheng, Wen-Xu , Li, Xin-Xiong , Zheng, Shou-Tian . A rare porous zinc phosphonocarboxylate framework with high thermal stability and interesting structural transformation . | CHINESE CHEMICAL LETTERS , 2018 , 29 (6) , 959-962 . |
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