Herein, an unprecedented monomeric bowl-like coordination complex, TiPgC (PgC = C-propylpyrogallol[4]arene), has been successfully synthesized. To the best of our knowledge, TiPgC not only presents the first pyrogallol[4]arene-based titanium coordination complex, but also the highest nuclearity titanium coordination complex in the metal-calixarene system. In addition, this titanium coordination complex can effectively degrade the methylene blue (MB) dye under sunlight.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/c7cc05362b | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Experimental and Theoretical Study of Two 3D Difunctional Electrocatalytic Hybrid Vanadate-Containing Metal-Organic Motifs.
Inorg Chem
January 2025
Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin 130024, PR China.
Two novel 3D inorganic-organic hybrids based on [VO]/[VO] clusters, [Cu(bbpy)(VO)]·3HO () and [CuAg(pty)(VO)]·HO () (bbpy = 3,5-bis(1-benzimidazole) pyridine, pty = 4'-(4″-pyridyl)-2,2':6',2″-terpyridine), were isolated in the same POV/Cu/N-heterocycle ligand reaction systems. Hybrids and possess novel three-dimensional bimetallic frameworks derived from [VO]/[VO] clusters and Cu-organic complexes. In , bbpy ligands are grafted by Cu to a grid ribbon 2D sheet, which are connected with benzene-like [VO] to yield a 3D framework.
View Article and Find Full Text PDFMitochondria-plasma membrane contact sites regulate the ER-mitochondria encounter structure.
J Cell Sci
January 2025
Department of Molecular Biosciences, Northwestern University, Evanston, IL 60208, USA.
Cells form multiple, molecularly distinct membrane contact sites (MCSs) between organelles. Despite knowing the molecular identity of several of these complexes, little is known about how MCSs are coordinately regulated in space and time to promote organelle function. Here, we examined two well-characterized mitochondria-ER MCSs - the ER-Mitochondria encounter structure (ERMES) and the mitochondria-ER-cortex anchor (MECA).
View Article and Find Full Text PDFLigand-Shell Cooperativity in a Bilayer Silica-Sandwiched Mixed-Metals Nanocatalyst Design for Absolute Selectivity Switch.
ACS Nano
January 2025
Creative Research Initiative Center for Nanospace-confined Chemical Reactions (NCCR), Pohang University of Science and Technology (POSTECH), Pohang 37673, Korea.
Unlike homogeneous metal complexes, achieving absolute control over reaction selectivity in heterogeneous catalysts remains a formidable challenge due to the unguided molecular adsorption/desorption on metal-surface sites. Conventional organic surface modifiers or ligands and rigid inorganic and metal-organic porous shells are not fully effective. Here, we introduce the concept of "ligand-porous shell cooperativity" to desirably reaction selectivity in heterogeneous catalysis.
View Article and Find Full Text PDFA novel ADP-directed chaperone function facilitates the ATP-driven motor activity of SARS-CoV helicase.
Nucleic Acids Res
January 2025
Single-Molecule and Cell Mechanobiology Laboratory, Daejeon, 34141, South Korea.
Helicase is a nucleic acid motor that catalyses the unwinding of double-stranded (ds) RNA and DNA via ATP hydrolysis. Helicases can act either as a nucleic acid motor that unwinds its ds substrates or as a chaperone that alters the stability of its substrates, but the two activities have not yet been reported to act simultaneously. Here, we used single-molecule techniques to unravel the synergistic coordination of helicase and chaperone activities, and found that the severe acute respiratory syndrome coronavirus helicase (nsp13) is capable of two modes of action: (i) binding of nsp13 in tandem with the fork junction of the substrate mechanically unwinds the substrate by an ATP-driven synchronous power stroke; and (ii) free nsp13, which is not bound to the substrate but complexed with ADP in solution, destabilizes the substrate through collisions between transient binding and unbinding events with unprecedented melting capability.
View Article and Find Full Text PDFSamarium as a Catalytic Electron-Transfer Mediator in Electrocatalytic Nitrogen Reduction to Ammonia.
J Am Chem Soc
January 2025
Division of Chemistry and Chemical Engineering, California Institute of Technology (Caltech), Pasadena, California 91125, United States.
Samarium diiodide (SmI) exhibits high selectivity for NR catalyzed by molybdenum complexes; however, it has so far been employed only as a stoichiometric reagent (0.3 equiv of NH per Sm) combined with coordinating proton sources (e.g.
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!