The addition of enantiopure TRISPHAT anions to chiral cationic cages of type [Co(4)(L)(6)(BF(4))](7+) leads to the enantiodifferentiation of the ligands of the racemic salts and, even more effectively, of the achiral tetrafluoroborate anion trapped inside.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/b618092b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Unprecedented Ultraviolet Circularly Polarized Light-Dependent Anomalous Photovoltaics in Chiral Hybrid Perovskites.
Adv Sci (Weinh)
January 2025
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.
Circularly Polarized Light (CPL)-dependent anomalous photovoltaic effect (APVE), characterized by light helicity-manipulated steady photocurrent and above-bandgap photovoltage, has demonstrated significant potential in the fields of photoelectronic and photovoltaics. However, exploiting CPL-dependent APVE in chiral hybrid perovskites, a promising family with intrinsic chiroptical activity and non-centrosymmetric structure, remains challenging. Here, leveraging the flexible structural design of chiral alternating cations intercalation-type perovskites, CPL-dependent APV, for the first time, is achieved in chiral perovskites.
View Article and Find Full Text PDFCatalytic Enantioselective Synthesis of 1,4-(Hetero) Dicarbonyl Compounds through α-Carbonyl Umpolung.
J Am Chem Soc
January 2025
Institute of Organic Chemistry, University of Leipzig, 04103 Leipzig, Germany.
The enantioselective synthesis of 1,4-dicarbonyl compounds continues to pose a significant challenge in organic synthesis, and a catalytic process which generates two adjacent stereogenic centers with full stereochemical control is lacking until now. The 1,4-relationship of the functional groups requires an Umpolung strategy as one of the α-carbonyl positions has to be inverted into an electrophilic center to react with a normal enolate. We report herein the highly enantio- and diastereoselective addition of silyl ketene acetals toward electrophilic 1-azaallyl cations to furnish chiral 4-hydrazonoesters, which are masked 1,4-dicarbonyl compounds.
View Article and Find Full Text PDFThiol-maleimide click reaction-driven imprinted polymer for chiral resolution of indoprofen.
J Chromatogr A
January 2025
Chemistry Department, Faculty of Science, Taibah University, Yanbu, Saudi Arabia; Chemistry Department, Faculty of Science, Mansoura University, Mansoura, Egypt. Electronic address:
Indoprofen (INP) comprises two enantiomers, R- and S-, whose high pharmacological efficacy is realized only in the case of the separated enantiomers. A newly synthesized poly(acrylonitrile-co-divinylbenzene) (PANB)-based sorbent with selective affinity to the S-enantiomer of INP was applied to separate INP racemate. The synthesis was performed by suspension polymerization with low-crosslinked PANB microparticles and by reaction of the inserted nitriles with 1-amino-1H-pyrrole-2,5‑dione (Ma-NH).
View Article and Find Full Text PDFDesigning Chiral Organometallic Nanosheets with Room-Temperature Multiferroicity and Topological Nodes.
Nano Lett
January 2025
Key Laboratory of Materials Physics, Institute of Solid State Physics, Hefei Institutes of Physical Science (HFIPS), Chinese Academy of Sciences, Hefei, Anhui 230031, China.
Two-dimensional (2D) room-temperature chiral multiferroic and magnetic topological materials are essential for constructing functional spintronic devices, yet their number is extremely limited. Here, by using the chiral and polar HPP (HPP = 4-(3-hydroxypyridin-4-yl)pyridin-3-ol) as an organic linker and transition metals (TM = Cr, Mo, W) as nodes, we predict a class of 2D TM(HPP) organometallic nanosheets that incorporate homochirality, room-temperature magnetism, ferroelectricity, and topological nodes. The homochirality is introduced by chiral HPP linkers, and the change in structural chirality induces a topological phase transition of Weyl phonons.
View Article and Find Full Text PDFSelf-assembly of chiroptical ionic co-crystals from silver nanoclusters and organic macrocycles.
Nat Chem
January 2025
Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, USA.
Atomically precise nanoclusters can be assembled into ordered superlattices with unique electronic, magnetic, optical and catalytic properties. The co-crystallization of nanoclusters with functional organic molecules provides opportunities to access an even wider range of structures and properties, but can be challenging to control synthetically. Here we introduce a supramolecular approach to direct the assembly of atomically precise silver nanoclusters into a series of nanocluster‒organic ionic co-crystals with tunable structures and properties.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!