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学者姓名：黄长沧
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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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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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The ternary combination of CuI, lanthanide cations and electron-deficient viologen based organic tectons led to a donor-acceptor (D-A) hybrid heterostructural framework with a narrow energy gap. Thanks to the electron transfer between inorganic donors (cuprous iodide clusters) and organic acceptors (viologen based tectons), this unique hybrid framework exhibits enhanced photocatalytic activities towards the degradation of rhodamine B (RhB) in comparison with those of lanthanide cations and bulk CuI.
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| GB/T 7714 | Liu, Jian-Jun , You, Ming-Hua , Li, Meng-Hua et al. A heterometallic D-A hybrid heterostructural framework with enhanced visible-light photocatalytic properties [J]. | CRYSTENGCOMM , 2020 , 22 (3) : 420-424 . |
| MLA | Liu, Jian-Jun et al. "A heterometallic D-A hybrid heterostructural framework with enhanced visible-light photocatalytic properties" . | CRYSTENGCOMM 22 . 3 (2020) : 420-424 . |
| APA | Liu, Jian-Jun , You, Ming-Hua , Li, Meng-Hua , Huang, Chang-Cang , Lin, Mei-Jin . A heterometallic D-A hybrid heterostructural framework with enhanced visible-light photocatalytic properties . | CRYSTENGCOMM , 2020 , 22 (3) , 420-424 . |
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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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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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When the chiral coordination polymers were composed of achiral molecules, the deracemization of the bulk product remains a great challenge if without any chiral induction. The Viedma ripening theory was adopted herein to help the achievement of mirror symmetry breaking for the bulk chirality of two chiral coordination polymers. The enantiomeric excess of the bulk chirality for the first compound is about 100%, which means absolute asymmetric synthesis. The deracemization degree of the bulk chirality for the second compound fluctuates occasionally. Further study has discussed the different deracemization degree of the bulk chirality for two compounds with the consideration of enantioselective incorporation in crystal cluster.
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| GB/T 7714 | Wu, Shu-Ting , Zhang, Yu-Sheng , Zhang, Bin et al. Viedma Ripening of Chiral Coordination Polymers Based on Achiral Molecules [J]. | CRYSTAL GROWTH & DESIGN , 2019 , 19 (5) : 2537-2541 . |
| MLA | Wu, Shu-Ting et al. "Viedma Ripening of Chiral Coordination Polymers Based on Achiral Molecules" . | CRYSTAL GROWTH & DESIGN 19 . 5 (2019) : 2537-2541 . |
| APA | Wu, Shu-Ting , Zhang, Yu-Sheng , Zhang, Bin , Hu, Xiao-Lin , Huang, Xi-He , Huang, Chang-Cang et al. Viedma Ripening of Chiral Coordination Polymers Based on Achiral Molecules . | CRYSTAL GROWTH & DESIGN , 2019 , 19 (5) , 2537-2541 . |
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Naphthalenediimides, an attractive class of electron-deficient organic dyes with rich redox and photoredox properties, have been investigated extensively as building blocks for coordination networks or metal-organic frameworks in recent decades. However, most of the available work has focused on d-block metal cations rather than f-block lanthanide ions, whose complexes exhibit a large variability in coordination numbers. In this article, four coordination polymers composed of naphthalenediimides and lanthanide cations, namely catena-poly[[[tris(nitrato-kappa O-2,O')lanthanide]-bis{mu-N,N'-bis[(1-oxidopyridin-1-ium-3-yl)methyl]-1,8 4,5-naphthalenetetracarboxdiimide-kappa O-2:O'}-[tris(nitrato-kappa O-2,O')lanthanide]-mu-N,N'-bis[(1-oxidopyridin-1-ium-3-yl)methyl]-1,8:4,5-naphthalenetetracarboxdiimide-kappa O-2:O'] methanol disolvate], {[Ln(C26H16N4O4)(1.5)-(NO3)(3)]center dot CH3OH}(n), with Ln = Eu, 1, Gd, 2, Dy, 3, and Er, 4, have been successfully synthesized under hydrothermal conditions. Single-crystal X-ray diffraction analyses revealed that the four compounds are isomorphic and that each asymmetric unit contains one nine-coordinated Ln centre, one and a half diimide ligands, three nitrate anions and one uncoordinated methanol molecule. In addition, each metal centre is surrounded by nine O atoms in a distorted tricapped trigonal-prismatic geometry. Two centres are bridged by two cis ligands to form a ring, which is further bridged by trans ligands to generate one-dimensional chains. Neighbouring chains are stacked via pi-pi interactions between pyridine rings to give a two-dimensional structure, which is stabilized by pi-pi interactions between naphthalene rings, forming the final three-dimensional supermolecular network. Solid-state optical diffuse-reflectance spectral studies indicate that compound 4 is a potential wide band gap semiconductor.
Keyword ：
coordination polymer coordination polymer crystal structure crystal structure lanthanide lanthanide naphthalenediimide naphthalenediimide nine-coordinate nine-coordinate semiconductor semiconductor
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| GB/T 7714 | Xiang, Zheng , Shan, Yue-Bin , Li, Tao et al. Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2019 , 75 : 38-, . |
| MLA | Xiang, Zheng et al. "Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 75 (2019) : 38-, . |
| APA | Xiang, Zheng , Shan, Yue-Bin , Li, Tao , Huang, Chang-Cang , Huang, Xi-He , Lin, Mei-Jin . Four isostructural lanthanide(III) coordination compounds based on a new N-oxydic pyridyl naphthalenediimide ligand: synthesis and characterization . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2019 , 75 , 38-, . |
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Naphthalenediimides, a class of organic dyes with an expanded pi-electron-deficient plane, have attracted considerable interest because of their photoinduced electron transfer from neutral organic moieties to stable anionic radicals. This makes them excellent candidates for organic linkers in the construction of photochromic coordination polymers. Such a photochromic two-dimensional coordination polymer has been prepared using N,N'-bis(pyridin-4-ylmethyl)naphthalene-1,8:4,5-bis(dicarboximide) (DPMNI). In crystallization tubes, upon slow diffusion of an MeOH solution of cadmium perchlorate into a CHCl3 solution of DPMNI, the complex poly[[bis[mu(2)-2,7-bis(pyridin-4-ylmethyl)benzo[imn][3,8]phenanthroline-1,3,6,8(2H,7H)-tetrone-kappa N-2:N']bis(perchlorato-kappa O)cadmium(II)] chloroform tetrasolvate], {[Cd(C26H16N4O4)(2)(ClO4)(2)]center dot-4CHCl(3)}(n), (I), was obtained. The asymmetric unit contains one Cd2+ cation, two DPMNI ligands, two coordinated ClO4- anions and four CHCl3 solvent molecules. Each Cd2+ cation is interconnected by four DPMNI linkers to generate a neutral two-dimensional naphthalenediimide coordination network with all the ClO4- anions above or below this plane. Strong interlaminar anion-pi interactions between the coordinated ClO4- anions and the imide rings of an adjacent layer lead to a three-dimensional supramolecular structure. Compound (I) exhibits reversible photochromic behaviour and photocontrolled tunable luminescence properties, which may originate from the photoinduced electron-transfer generation of radicals in the DPMNI ligand.
Keyword ：
cadmium(II) cadmium(II) crystal structure crystal structure naphthalenediimide naphthalenediimide photochromism photochromism photoinduced electron transfer photoinduced electron transfer tunable luminescence tunable luminescence
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| GB/T 7714 | Liu, Jian-Jun , Dong, Ying , Chen, Li-Zhen et al. A two-dimensional Cd-II coordination polymer based on naphthalenediimide: synthesis, crystal structure and photochromic properties [J]. | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2018 , 74 : 94-, . |
| MLA | Liu, Jian-Jun et al. "A two-dimensional Cd-II coordination polymer based on naphthalenediimide: synthesis, crystal structure and photochromic properties" . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 74 (2018) : 94-, . |
| APA | Liu, Jian-Jun , Dong, Ying , Chen, Li-Zhen , Wang, Ling , Xia, Shu-Biao , Huang, Chang-Cang . A two-dimensional Cd-II coordination polymer based on naphthalenediimide: synthesis, crystal structure and photochromic properties . | ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY , 2018 , 74 , 94-, . |
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The ternary combination of metal cations, CuI and viologen based carboxylate leads to two donor-acceptor hybrid heterostructures with novel cuprous iodide clusters and narrow energy gaps. Thanks to the facilitated electron transfers between both donor and acceptor components, these unique hybrids exhibit enhanced photocatalytic degradation activities towards organic dyes under visible light irradiation in comparison with those of bulk CuI and viologen semiconductors.
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| GB/T 7714 | Liu, Jian-Jun , Xiang, Zheng , Guan, Ying-Fang et al. Two novel donor-acceptor hybrid heterostructures with enhanced visible-light photocatalytic properties [J]. | DALTON TRANSACTIONS , 2018 , 47 (35) : 12041-12045 . |
| MLA | Liu, Jian-Jun et al. "Two novel donor-acceptor hybrid heterostructures with enhanced visible-light photocatalytic properties" . | DALTON TRANSACTIONS 47 . 35 (2018) : 12041-12045 . |
| APA | Liu, Jian-Jun , Xiang, Zheng , Guan, Ying-Fang , Huang, Chang-Cang , Lin, Mei-Jin . Two novel donor-acceptor hybrid heterostructures with enhanced visible-light photocatalytic properties . | DALTON TRANSACTIONS , 2018 , 47 (35) , 12041-12045 . |
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