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Dynamic Control of Chiral Recognition in Water-Soluble Naphthotubes Induced by Hydrostatic Pressure.
ACS Nanosci Au
December 2024
Department of Chemistry, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan.
The dynamic control of chiral (enantiomeric) responses in chiral host-guest complexes through external stimuli is a significant challenge in modern chemistry for developing smart stimuli-responsive materials. Herein, we report the (chir)optical properties and chiral recognition behavior of water-soluble chiral naphthotubes () under the influence of hydrostatic pressure as an external stimulus. The hydrostatic pressure spectral profiles compared to those obtained at normal pressure revealed the dynamic behavior of under hydrostatic pressure, owing to the flexible linker.
View Article and Find Full Text PDFCyclodextrins-based deep eutectic supramolecules as chiral selectors for enhanced enantioseparation in capillary electrophoresis.
J Chromatogr A
December 2024
Department of Pharmacy, Affiliated Hospital of Nantong University, No.20 Xisi Road, Nantong, Jiangsu 226001, PR China. Electronic address:
The joint use of deep eutectic solvents (DESs) and cyclodextrins (CDs) has been well demonstrated to have a promoting effect on chiral separation in capillary electrophoresis (CE). These studies focused on constructing synergistic separation systems by adding DESs and CDs to the buffer solution respectively. In this work, for the first time, β-cyclodextrin (β-CD), methyl-β-cyclodextrin (M-β-CD), and hydroxypropyl-β-cyclodextrin (HP-β-CD) were directly used as precursors to prepare several CDs-based deep eutectic supramolecules (DESUPs) by assembling with two organic acids (L-lactic acid and L-malic acid) in different ratios through a simple two-phase mixing.
View Article and Find Full Text PDFEnantio-Recognition and Charge Transfer Complex Formation Involving Tetrathiafulvalene-Appended Chiral 1,2-Cyclohexane-Diamine: An Integrated Experimental and Theoretical Study.
Chirality
December 2024
Department of Engineering "Enzo Ferrari", (DIEF), Univ. of Modena, Modena, Italy.
In this work, we exploit the electronic features of tetrathiafulvalene (TTF) as a backbone in synthesizing chiral derivatives. The aim is to make use of TTF's well-known and unique redox and semiconducting properties in the fields of enantio-selective recognition and chiral charge transfer (CT) complex preparation, with the ultimate objective of obtaining devices with various potential applications, ranging from plasmonics to quantum computing. In particular, both cyclohexane-bis (TTF-amide)-based enantiomers 1-(S,S) and 1-(R,R), stable under an oxidation regime, have been selected, and under these conditions, the electrochemical enantiospecific response of the four possible systems, coming from the combination with L- and D-tartaric acid, respectively, was tested.
View Article and Find Full Text PDFAdvances in Chiral Macrocycles: Molecular Design and Applications.
Chemistry
December 2024
South China University of Technology, School of Chemistry and Chemical Engineering, 381 Wushan Road, 510641, Guangzhou, CHINA.
Chiral macrocycles have recently emerged as promising materials for enantioselective recognition, asymmetric catalysis, and circularly polarized luminescence (CPL) due to their terminal-free structure, preorganized chiral cavities, and unique host-guest and self-assembly properties. This review summarizes recent advances in the design and synthesis of chiral macrocycles with central, axial, helical, and planar chirality, each imparting distinct structural and chiroptical characteristics. We highlight key strategies for constructing these macrocycles and their applications in optoelectronic and catalytic systems.
View Article and Find Full Text PDFEnhanced Enantioselective Sensing of 1,1'-Bi-2-naphthol and Mandelic Acid by Proportional Fluorescence Sensor 3DOM Zn-MOF-74-l-Trp with Hierarchical Macro-Micropore Structure.
Inorg Chem
December 2024
Center of Advanced Analysis and Gene Sequencing, Key Laboratory of Molecular Sensing and Harmful Substances Detection Technology, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan 450001, P. R. China.
The enantioselective performance of porous chiral metal-organic frameworks (CMOFs) is closely related to the pore size and uniformity of easily accessible active sites. The chiral recognition efficiency of microporous CMOFs is hindered by the restricted diffusion of the guest. Hierarchical porous chiral CMOFs with multiple pore size regimes ranging from micropores to macropores have emerged as potential candidates in chiral separation applications.
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