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Chen YR, Jia MZ, Pan JQ, Tan B, Zhang J. Photomechanical behavior triggered by [2 + 2] cycloaddition and photochromism of a pyridinium-functionalized coordination complex. Dalton Trans 2022; 51:6157-6161. [PMID: 35380565 DOI: 10.1039/d2dt00599a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Photoinduced bending behavior triggered by [2 + 2] cycloaddition of a photoactive complex has been successfully achieved, accompanied by photochromic and fluorescence changes that provide convenience for long-distance observation of photomechanical motion. The key design feature is based on the introduction of flexible methylene groups and cation-π interactions. Moreover, the potential application in photomechanical devices was reflected by bending and supporting force experiments on the complex composite film, which is of increasing importance especially in soft actuators and robots.
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Affiliation(s)
- Yun-Rui Chen
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Meng-Ze Jia
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Jia-Qi Pan
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Bin Tan
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
| | - Jie Zhang
- MOE Key Laboratory of Cluster Science, Beijing Key Laboratory of Photoelectronic/Electrophotonic Conversion Materials, School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing 102488, P. R. China.
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2
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Sun XP, Tang Z, Yao ZS, Tao J. A homochiral 3D framework of mechanically interlocked 1D loops with solvent-dependent spin-state switching behaviors. Chem Commun (Camb) 2020; 56:133-136. [PMID: 31799549 DOI: 10.1039/c9cc09063k] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
An atypical homochiral spin-crossover (SCO) framework (1) constructed from mechanically interlocked 1D molecular loops was prepared. Due to the flexibility of the interlocked structure, the guest solvent molecules can be reversibly exchanged. Consequently, its SCO behavior was capable of modulating between one- and two-stepped transitions in response to acetonitrile and methanol.
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Affiliation(s)
- Xiao-Peng Sun
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People's Republic of China.
| | - Zheng Tang
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People's Republic of China.
| | - Zi-Shuo Yao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People's Republic of China.
| | - Jun Tao
- Key Laboratory of Cluster Science of Ministry of Education, School of Chemistry and Chemical Engineering, Liangxiang Campus, Beijing Institute of Technology, Beijing 102488, People's Republic of China.
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3
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Jiafeng L, Qin Z, Tiantang F, Li G, Wuyou Y, Zhongyong F, Lu C, Qing L. Crystallization and biocompatibility enhancement of 3D-printed poly(l-lactide) vascular stents with long chain branching structures. CrystEngComm 2020. [DOI: 10.1039/c9ce01477b] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The long chain branching poly(L-lactide)s were prepared by reactive processing of linear PLA using pyromellitic dianhydride and polyfunctional epoxy ether as the branching agent and their vascular stents were fabricated via 3D-printing.
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Affiliation(s)
- Li Jiafeng
- Department of Materials Science
- Fudan University
- Shanghai
- PR China
| | - Zhang Qin
- Department of Materials Science
- Fudan University
- Shanghai
- PR China
| | - Fan Tiantang
- Department of Materials Science
- Fudan University
- Shanghai
- PR China
| | - Gong Li
- Department of Materials Science
- Fudan University
- Shanghai
- PR China
| | - Ye Wuyou
- Department of Materials Science
- Fudan University
- Shanghai
- PR China
| | - Fan Zhongyong
- Department of Materials Science
- Fudan University
- Shanghai
- PR China
| | - Cao Lu
- Department of Orthopedic Surgery
- Zhongshan Hospital
- Fudan University
- Shanghai
- PR China
| | - Liu Qing
- Beijing Advanced Medical Technologies, Ltd. Inc
- Beijing
- PR China
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4
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Su H, Li Z, Tan J, Ma H, Yan L, Li H. Structural conversion of three copper( ii) complexes with snapshot observations based on the different crystal colours and morphology. RSC Adv 2020; 10:42964-42970. [PMID: 35514932 PMCID: PMC9058286 DOI: 10.1039/d0ra07231a] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Accepted: 11/20/2020] [Indexed: 11/21/2022] Open
Abstract
Three novel Cu(ii) complexes [Cu2(L)2(MeOH)2] (1), [Cu2(L)2(H2O)2] (2) and [CuL(H2O)] (3) (L = (E)-2-((2-hydroxy-4-methoxybenzylidene)amino)acetic acid) have been obtained in different time scales of reaction processing. Complexes 1 and 2 are kinetically controlled products and 3 is a thermodynamically stable product. Single crystal X-ray diffraction analyses revealed that 1 and 2 are binuclear complexes except for different coordination solvents. 3 is a mononuclear complex. Complex 1 is mainly obtained in methanol solution, while 2 and 3 are stable in aqueous solvents. Based on the understanding of crystal structures of the three complexes, reversibly transforming crystal 2 to crystal 1 at room temperature has been realised, which has been confirmed by the change of colours and morphology measured by SEM. The research work is very important for controllable synthesis of coordination complexes. Structural conversion of three novel Cu(ii) complexes [Cu2(L)2(MeOH)2] (1), [Cu2(L)2(H2O)2] (2) and [CuL(H2O)] (3) (L = (E)-2-((2-hydroxy-4-methoxybenzylidene)amino)acetic acid) in different time scales of reaction processing.![]()
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Affiliation(s)
- Hao Su
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Zhongkui Li
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Junrui Tan
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
| | - Hongwei Ma
- Analytical and Testing Center
- Beijing Institute of Technology
- Beijing 102488
- China
| | - Li Yan
- Analytical and Testing Center
- Beijing Institute of Technology
- Beijing 102488
- China
| | - Hui Li
- Key Laboratory of Cluster Science of Ministry of Education
- School of Chemistry and Chemical Engineering
- Beijing Institute of Technology
- Beijing 100081
- P. R. China
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5
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Pagliari A, Orlando T, Salbego PRS, Zimmer G, Hörner M, Zanatta N, Bonacorso HG, Martins MAP. Supramolecular Packing of a Series of N-Phenylamides and the Role of NH···O=C Interactions. ACS OMEGA 2018; 3:13850-13861. [PMID: 31458083 PMCID: PMC6645157 DOI: 10.1021/acsomega.8b01801] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Accepted: 10/03/2018] [Indexed: 05/25/2023]
Abstract
A series of seven N-phenylamides [R-C(O)NHPh, in which R: CH3, C(CH3)3, Ph, CF3, CCl3, CBr3, and H] were used as models in this study. Molecular packing and intermolecular interactions were evaluated by theoretical calculations, solution NMR, and quantum theory of atoms in molecules analyses. Crystallization mechanisms were proposed based on the energetic and topological parameters using the supramolecular cluster as demarcation. Concentration-dependent 1H NMR experiments corroborated the proposed interactions between molecules. For all compounds (except for R: H, which initially formed tetramers), layers (two-dimensional) or chains (one-dimensional) were formed in the first stage of the proposed crystallization mechanisms. The presence of strong intermolecular NH···O=C interactions promoted the first stages. The study in solution provided different values of association constant (K ass) governed by the hydrogen bond NH···O=C, showing that the stronger interactions are directly influenced by the substituent steric hindrance. A correlation between K ass(NH···O=C) from the solution and the NH···O=C interaction energy in the crystal showed a good trend.
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Affiliation(s)
- Anderson
B. Pagliari
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Tainára Orlando
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Paulo R. S. Salbego
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Geórgia
C. Zimmer
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Manfredo Hörner
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Nilo Zanatta
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Helio G. Bonacorso
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
| | - Marcos A. P. Martins
- Núcleo
de Química de Heterociclos (NUQUIMHE) and Núcleo
de Investigação de Triazenos e Complexos (NITRICO),
Department of Chemistry, Federal University
of Santa Maria (UFSM), 97105-900 Santa Maria, Rio
Grande do Sul, Brazil
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