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Light-regulating chirality of metallacages featuring dithienylethene switches.
Chem Sci
June 2023
Key Laboratory for Advanced Materials, Joint International Research Laboratory of Precision Chemistry, Molecular Engineering Feringa Nobel Prize Scientist Joint Research Center, Shanghai Key Laboratory of Functional Materials Chemistry, Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology 200237 China
Dynamic chiral superstructures are of vital importance for understanding the organization and function of chirality in biological systems. However, achieving high conversion efficiency for photoswitches in nanoconfined architectures remains challenging but fascinating. Herein, we report a series of dynamic chiral photoswitches based on supramolecular metallacages through the coordination-driven self-assembly of dithienylethene (DTE) units and octahedral zinc ions, thereby successfully achieving an ultrahigh photoconversion yield of 91.
View Article and Find Full Text PDFIntegrative self-sorting of coordination cages based on 'naked' metal ions.
Chem Commun (Camb)
July 2017
Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn-Straße 6, 44227 Dortmund, Germany.
Coordination-driven self-assembly of metal ions and organic ligands has been extensively utilised over the past four decades to access a variety of nano-sized cage assemblies, with functions ranging from sensing and catalysis to drug delivery. Many of the reported examples, however, are highly symmetric architectures that contain one type of organic ligand carrying not more than a single functionality. This contrasts significantly with the level of structural and functional complexity encountered in biological macromolecular hosts, which are able to bind and chemically convert smaller molecules in their highly-decorated internal cavities.
View Article and Find Full Text PDFAnticancer activities of self-assembled molecular bowls containing a phenanthrene-based donor and Ru(II) acceptors.
Int J Nanomedicine
March 2016
Department of Chemistry, University of Ulsan, Ulsan, Republic of Korea.
Nano-sized multinuclear ruthenium complexes have rapidly emerged as promising therapeutic candidates with unique anticancer activities. Here, we describe the coordination-driven self-assembly and anticancer activities of a set of three organometallic tetranuclear Ru(II) molecular bowls. [2+2] Coordination-driven self-assembly of 3, 6-bis(pyridin-3- ylethynyl) phenanthrene (bpep) (1) and one of the three dinuclear arene ruthenium clips, [(η6-p-iPrC6H4Me)2Ru2-(OO\OO)][OTf]2 (OO\OO =2, 5-dioxido-1, 4-benzoquinonato, OTf = triflate) (2), 5, 8-dioxido-1, 4-naphthoquinonato (3), or 6, 11-dioxido-5, 12-naphthacenediona (4), resulted in three molecular bowls 5-7 of general formula [{(η6-p-iPrC6H4Me)2Ru2-(OO\OO)}2(bpep)2][OTf]4.
View Article and Find Full Text PDFControllable coordination-driven self-assembly: from discrete metallocages to infinite cage-based frameworks.
Acc Chem Res
February 2015
State Key Laboratory of Structure Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences , Fuzhou, Fujian 350002, P. R. China.
CONSPECTUS: Nanosized supramolecular metallocages have a unique self-assembly process that allows chemists to both understand and control it. In addition, well-defined cavities of such supramolecular aggregates have various attractive applications including storage, separation, catalysis, recognition, drug delivery, and many others. Coordination-driven self-assembly of nanosized supramolecular metallocages is a powerful methodology to construct supramolecular metallocages with considerable size and desirable shapes.
View Article and Find Full Text PDFCoordination-driven nanosized lanthanide 'Molecular Lanterns' as luminescent chemosensors for the selective sensing of magnesium ions.
Dalton Trans
January 2014
State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian, 116012, P. R. China.
Novel cerium-based 'Molecular Lanterns' Ce-DBDS, Ce-DBBS and Ce-DBOS were achieved via self-assembly from bis-tridentate ligands H4DBDS, H4DBBS and H4DBOS, respectively. Structure analysis of Ce-DBDS shows that six oxygen atoms of the ether bond groups on the ligands form a lantern-like cavity inside the compound. Thus the 'Molecular Lanterns' exhibit crown ether recognition behavior and could be applied in luminescent magnesium chemosensors.
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