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Tay HM, Kyratzis N, Thoonen S, Boer SA, Turner DR, Hua C. Synthetic strategies towards chiral coordination polymers. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213763] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Xia B, Gao Q, Hu ZP, Wang QL, Cao XW, Li W, Song Y, Bu XH. Concomitant Photoresponsive Chiroptics and Magnetism in Metal-Organic Frameworks at Room Temperature. RESEARCH 2021; 2021:5490482. [PMID: 33644763 PMCID: PMC7894082 DOI: 10.34133/2021/5490482] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/30/2020] [Accepted: 12/28/2020] [Indexed: 01/01/2023]
Abstract
Stimulus-responsive metal-organic frameworks (MOFs) can be used for designing smart materials. Herein, we report a family of rationally designed MOFs which exhibit photoresponsive chiroptical and magnetic properties at room temperature. In this design, two specific nonphotochromic ligands are selected to construct enantiomeric MOFs, {Cu2(L-mal)2(bpy)2(H2O)·3H2O}n (1) and {Cu2(D-mal)2(bpy)2(H2O)·3H2O}n (2) (mal = malate, bpy = 4, 4′ − bipyridine), which can alter their color, magnetism, and chiroptics concurrently in response to light. Upon UV or visible light irradiation, long-lived bpy− radicals are generated via photoinduced electron transfer (PET) from oxygen atoms of carboxylates and hydroxyl of malates to bpy ligands, giving rise to a 23.7% increase of magnetic susceptibility at room temperature. The participation of the chromophores (-OH and -COO−) bound with the chiral carbon during the electron transfer process results in a small dipolar transition; thus, the Cotton effects of the enantiomers are weakened along with a photoinduced color change. This work demonstrates that the simultaneous responses of chirality, optics, and magnetism can be achieved in a single compound at room temperature and may open up a new pathway for designing chiral stimuli-responsive materials.
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Affiliation(s)
- Bin Xia
- College of Chemistry, State Key Lab of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Qian Gao
- School of Physics, Nankai University, Tianjin 300071, China
| | - Zhen-Peng Hu
- School of Physics, Nankai University, Tianjin 300071, China
| | - Qing-Lun Wang
- College of Chemistry, State Key Lab of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
| | - Xue-Wei Cao
- School of Physics, Nankai University, Tianjin 300071, China
| | - Wei Li
- School of Materials Science and Engineering, Tianjin Key Lab of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China
| | - You Song
- State Key Lab of Coordination Chemistry, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Xian-He Bu
- College of Chemistry, State Key Lab of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China.,School of Materials Science and Engineering, Tianjin Key Lab of Metal and Molecule-Based Material Chemistry, Nankai University, Tianjin 300350, China
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Zavakhina MS, Samsonenko DG, Fedin VP. A Homochiral Coordination Polymer Based on Copper(II), S-Malic Acid, and Biphenyl-3,3′,5,5′-Tetracarboxilic Acid. J STRUCT CHEM+ 2019. [DOI: 10.1134/s0022476619020136] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Zavakhina MS, Samsonenko DG, Dybtsev DN, Fedin VP. Three-dimensional copper(II) carboxylates based on 4,4′,4″-benzene-1,3,5-triyltris(benzoic acid). Russ Chem Bull 2018. [DOI: 10.1007/s11172-018-2034-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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