Solvent-mediated crystal-to-crystal transformations of [Au Ag Cu (H O) (d-pen) (tdme) ] (d-[1(H O) ] ; pen =penicillaminate, tdme=1,1,1-tris(diphenylphosphinomethyl)ethane) to form unique supramolecular species are reported. Soaking crystals of d-[1(H O) ] in aqueous Na bdc (bdc =1,4-benzenedicarboxylate) yielded crystals containing d-[1(bdc)(H O) ] due to the replacement of a terminal aqua ligand in d-[1(H O) ] by a monodentate bdc ligand. When γ-cyclodextrin (γ-CD) was added to aqueous Na bdc, d-[1(H O) ] was transformed to d-[1(bdc@γ-CD)(H O) ] , where a γ-CD ring was threaded by a bdc molecule to construct a pseudorotaxane structure. While the use of dicarboxylates with an aliphatic carbon chain instead of bdc afforded analogous pseudorotaxanes, such pseudorotaxane species were not formed when crystals of [Au Ag Cu (H O) (l-pen) (tdme) ] (l-[1(H O) ] ) enantiomeric to d-[1(H O) ] were soaked in aqueous Na bdc and γ-CD, affording only crystals containing l-[1(bdc)(H O) ] .
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http://dx.doi.org/10.1002/chem.202102769 | DOI Listing |
Dalton 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 PDFInt J Biol Macromol
January 2025
Department of Mechanical Engineering, Faculty of Engineering, Xi'an Technological University, Shaanxi, China. Electronic address:
This study explored the use of mango lignocellulosic kernel biochar (MKB) modified with MnFeO magnetic nanoparticles and a Cu@Zn-BDC metal-organic framework (MOF) (MKB/MnFeO/Cu@Zn-BDC MOF) for tetracycline (TC) removal from aqueous solutions and hospital wastewater. The modified biochar exhibited strong magnetic properties (19.803 emu/g) and a specific surface area of 30.
View Article and Find Full Text PDFChem Asian J
December 2024
Department of Chemistry and CRNN, University of Calcutta, 700073, Kolkata, India.
To realize the aim of easy and accurate detection of ammonia and picric acid (PA) in both aqueous and vapor phases based on function-oriented investigation principles, in the present study, we include a luminescent performance with recognition performance, taking into account the application conditions. Zn(II) ions with luminescence qualities and an amine-substituted imidazole moiety with selective recognition properties towards picric acid and ammonia are coupled to generate a novel 1D luminous Zn(II) coordination polymer, Zn-CP [{Zn(II)( 2-ABZ)2(2-BDC)}].MeOH]∞, where 2-ABZ and 2-BDC stand for terephthalic acid and protonated 2 aminobenzimidazole, respectively.
View Article and Find Full Text PDFChem Res Toxicol
January 2025
Key Laboratory of Pollution Control Chemistry and Environmental Functional Materials for Qinghai-Tibet Plateau of the National Ethnic Affairs Commission, School of Chemistry and Environment, Southwest Minzu University, Chengdu 610041, China.
During widespread applications of metal-organic frameworks (MOFs), the environmental hazards and risks of MOFs have aroused great concerns. In this study, we aimed to reveal the importance of the environmental stability of MOFs on their toxicity. Two Zn-MOFs, namely, ZIF-8 with high aqueous stability and Zn-BDC with low aqueous stability, were compared directly in the toxicological evaluations of a nitrogen-fixing bacterium .
View Article and Find Full Text PDFA terbium-based metal-organic framework (MOF) with exceptional water stability for highly selective detection of pesticide thiamethoxam (TMX) in aqueous solution is reported. To date, most reported lanthanide metal-organic frameworks (Ln-MOFs) still exhibit poor water stability, which may limit their practical applications in bio-sensing and detecting pollutants in environmental water samples. In this work, a Tb-MOF [Tb(BDC)(DEF)·0.
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