Single-crystal-to-single crystal structural conversions occur in a Zn(ii) coordination polymer, uniquely induced by fine-tuned relative humidity. Proton conductivity depends on the number of hydrogen bonds in the structures. Slope change in the Arrhenius plot is uncommon among coordination-based conductors and associated with temperature-dependent phase changes.
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http://dx.doi.org/10.1039/c9cc04474d | DOI Listing |
Angew Chem Int Ed Engl
January 2025
Sun Yat-Sen University, School of Chemistry and Chemical Engineering, 135 West Xingang Road, 510275, Guangzhou, CHINA.
Metal-organic complexes with long afterglow luminescence have attracted extensive attention due to potential applications in display, sensing and information security. However, most of the metal-organic complex long afterglow materials reported so far are limited to the use of UV light as the excitation source, and the ambiguity of the structure-activity relationship makes the development of metal-organic complexes extremely limited. Herein, a series of metal-organic complexes with ultralong emission lifetime is constructed by coordination assembly of Zn(II) with three isomers.
View Article and Find Full Text PDFDalton Trans
January 2025
Department of Chemistry, School of Applied Sciences, Kalinga Institute of Industrial Technology (KIIT) Deemed to be University, Bhubaneswar 751024, Odisha, India.
Energy crisis and environmental pollution are two central themes of contemporary research towards achieving sustainable development goals (SDGs). Material chemistry is the chief discipline that can resolve glitches in these areas through the appropriate design of chemical compounds with multifunctional properties. In this regard, two stable coordination polymers (CPs) were synthesised in this work using Zn(II) (3d) and Cd(II) (d) metal nodes with 1,4-benzenedicarboxylate () as the bridging ligand and monodentate pyridyl-N coordinated 9-fluoren-2-yl-pyridin-4-ylmethylene-amine (flpy) as the fluorogenic partner.
View Article and Find Full Text PDFCryst Growth Des
January 2025
Department of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Republic of Ireland.
Solid-state synthesis is an approach to organic synthesis that is desirable because it can offer minimal or no solvent waste, high yields, and relatively low energy footprints. Herein, we report the solid-state synthesis of a novel Schiff base, 4-{()-[(4-methylpyridin-3-yl)imino]methyl}benzoic acid (), synthesized through the reaction of an amine and an aldehyde. was prepared via solvent-drop (water) grinding (SDG) on a multigram scale with 97% yield and was characterized using FTIR, H NMR, and SCXRD.
View Article and Find Full Text PDFInt J Biol Macromol
January 2025
Zhongyuan Critical Metals Laboratory, Zhengzhou University, Zhengzhou 450001, China; The Key Lab of Critical Metals Minerals Supernormal Enrichment and Extraction, Ministry of Education, Zhengzhou 450001, China; School of Chemical Engineering, Zhengzhou University, Zhengzhou 450001, China; Luoyang Industrial Technology Institute, Luoyang 471000, China. Electronic address:
A magnetic chitosan-based ion-imprinted polymer (IIP) with high adsorption capacity, excellent selectivity for Ga(III), easy magnetic separation, and remarkable reusability was synthesized via a simple crosslinking polymerization. The IIP exhibited a Ga(III) adsorption capacity of 434.00 mg/g at pH 4, demonstrating high efficiency for Ga(III) removal from aqueous solutions.
View Article and Find Full Text PDFInorg Chem
January 2025
Department of Chemistry, University of Southern California, Los Angeles, California 90089, United States.
The photophysical properties of six new luminescent tetrahedral Zn(II) complexes are presented that survey two electronic donor moieties (phenolate and carbazolate) and three electronic acceptors (pyridine, pyrimidine, and pyrazine). A unique ligand based on an -terphenyl motif forms an eight-membered chelate, which enhances through-space charge-transfer (CT) interactions by limiting through-bond conjugation between the donor and acceptor. A single isomeric product was obtained in yields up to 90%.
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