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学者姓名：郑文旭
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Abstract ：
The vortex features a helical structure and exhibits macroscopic chirality. Over the past few decades, scientists have observed that several achiral compounds display chiroptical activity within the vortex field. The researchers believe that chiral arrangement may have occurred in this process. Herein, we investigate two achiral metal-organic colloids (Zn3L/DMSO and Zn3L/DMF) which have similar chemical components but exhibit distinct vortex-responsive chiroptical properties. In the vortex field, the Zn3L/DMSO colloid presents chiroptical activity, whereas the Zn3L/DMF colloid remains chiroptically silent. Rheological studies reveal the possible underlying reasons. The strong solvent-colloidal particles interactions in the Zn3L/DMSO colloid endow the system with excellent viscoelasticity and reversible thixotropy. These characteristics enable the Zn3L/DMSO colloid to form a reversible chiral arrangement within the vortex. In contrast, the Zn3L/DMF colloid fails to respond to the vortex. Furthermore, the addition of the charged molecule D enhanced the rheological properties of the Zn3L/DMSO colloid, with the potential to preserve its chiroptical activity. Overall, this research is expected to provide new insights into the vortex-induced chirality of supramolecular colloids, contributing to a deeper understanding of the underlying principles of chiroptical property in such systems.
Keyword ：
chiral retention chiral retention dynamic chiroptical property dynamic chiroptical property rheological property rheological property solvent effect solvent effect vortex vortex
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| GB/T 7714 | Guo, Biao , Zheng, Wen-Hui , Huang, Jian-Cai et al. Solvent Effect on the Chiral Arrangement for Two Achiral Metal-Organic Colloids in the Vortex Field: Rheological Study and Retention Study [J]. | CHEMISTRY-A EUROPEAN JOURNAL , 2025 , 31 (36) . |
| MLA | Guo, Biao et al. "Solvent Effect on the Chiral Arrangement for Two Achiral Metal-Organic Colloids in the Vortex Field: Rheological Study and Retention Study" . | CHEMISTRY-A EUROPEAN JOURNAL 31 . 36 (2025) . |
| APA | Guo, Biao , Zheng, Wen-Hui , Huang, Jian-Cai , Zheng, Wenxu , Yan, Dan , Wu, Shu-Ting . Solvent Effect on the Chiral Arrangement for Two Achiral Metal-Organic Colloids in the Vortex Field: Rheological Study and Retention Study . | CHEMISTRY-A EUROPEAN JOURNAL , 2025 , 31 (36) . |
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Abstract ：
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-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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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-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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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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A series of rare metal organic frameworks based on In-M heterometallic clusters [(CH3)(2)NH2][In3M2(BTC)(4)(DMF)(2)(H2O)(4)Cl-2]center dot solvent (1-M, M = Ca, Sr, Ba, H3BTC = 1,3,5-benzenetricarboxylic acid, DMF = N,N-dimethylformamide) have been successfully synthesized. Structural analysis reveals that 1-M represent fascinating three-dimensional porous frameworks constructed from different nanoscale cages. What is more, these new materials exhibit interesting gas adsorption properties that can be tuned by encapsulating different alkaline earth metal ions.
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| GB/T 7714 | Qi, Yan-Jie , Zhao, Dan , Li, Xin-Xiong et al. Indium-Based Heterometal-Organic Frameworks with Different Nanoscale Cages: Syntheses, Structures, and Gas Adsorption Properties [J]. | CRYSTAL GROWTH & DESIGN , 2017 , 17 (3) : 1159-1165 . |
| MLA | Qi, Yan-Jie et al. "Indium-Based Heterometal-Organic Frameworks with Different Nanoscale Cages: Syntheses, Structures, and Gas Adsorption Properties" . | CRYSTAL GROWTH & DESIGN 17 . 3 (2017) : 1159-1165 . |
| APA | Qi, Yan-Jie , Zhao, Dan , Li, Xin-Xiong , Ma, Xiang , Zheng, Wen-Xu , Zheng, Shou-Tian . Indium-Based Heterometal-Organic Frameworks with Different Nanoscale Cages: Syntheses, Structures, and Gas Adsorption Properties . | CRYSTAL GROWTH & DESIGN , 2017 , 17 (3) , 1159-1165 . |
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Abstract ：
本实用新型涉及一种兼容圆二色光谱仪的原位测试台，包括样品台单元、位于样品台单元下方的电机单元，样品台单元包括底板、圆盖、比色皿座、遮光盖，底板前侧面、左右侧面设置有探测器固定架，圆盖固定在底板上，比色皿座固定在圆盖上，比色皿座内设置有比色皿，比色皿内设置有搅拌磁子，比色皿座设有通光孔，遮光盖设在比色皿座顶部，电机单元包括控制器、开关电源、电机底座，电机底座内固定有伺服电机，伺服电机的输出轴上设置有圆盘，圆盘上对称设置有两个大小相同的磁铁，开关电源、伺服电机均与控制器电性连接，本实用新型易于安装拆卸，可以方便地控制搅拌的方向，实现正反两个方向的搅拌，并且可以通过控制器精确地控制搅拌的速率。
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| GB/T 7714 | 郑文旭 , 黄建才 , 吴舒婷 . 兼容圆二色光谱仪的原位测试台 : CN201621121542.5[P]. | 2016/10/14 . |
| MLA | 郑文旭 et al. "兼容圆二色光谱仪的原位测试台" : CN201621121542.5. | 2016/10/14 . |
| APA | 郑文旭 , 黄建才 , 吴舒婷 . 兼容圆二色光谱仪的原位测试台 : CN201621121542.5. | 2016/10/14 . |
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