Article
Chemistry, Multidisciplinary
Tesfay G. Ashebr, Leo La Droitte, Xiao-Lei Li, Chen Zhao, Jinjiang Wu, Quan Zhou, Olivier Cador, Boris Le Guennic, Jinkui Tang
Summary: Using an edaravone-based aryloxide ligand, four new mononuclear Dy(III) compounds were synthesized. The complexes exhibited a slow relaxation of the magnetization, and the magnetic properties were influenced by chemical modifications on the dominant crystal field interaction and the presence of different counterions.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Arida Jabbari, Mohsen Nikoorazm, Parisa Moradi
Summary: We developed a stable, efficient, reusable nanocatalyst V(O)-5NSA-MCM-41 for the oxidative coupling of thiols to disulfides and oxidation of sulfides to sulfoxides. The catalyst showed good performance using biocompatible and inexpensive hydrogen peroxide as the oxidant. Characterization of the recovered catalyst confirmed its heterogeneous nature and excellent agreement with the fresh catalyst before reuse.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Review
Chemistry, Organic
Can Liu
Summary: Research on sulfoxides and disulfides is important for chemists due to their significance in drug and pharmaceutical molecules. Nanomaterials, particularly MCM-41 and MCM-48, are suggested as ideal supports for immobilizing metal complexes. These metal-MCM nanomaterials have been widely used for catalytic oxidation reactions of sulfides to sulfoxides and oxidative coupling of thiols to disulfides.
SYNTHETIC COMMUNICATIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mohammad Ghadermazi, Somayeh Molaei
Summary: Samarium (III) complex immobilized in MCM-41 was synthesized and characterized. The catalysts showed the attachment of 3,4,5-tri hydroxyphenyl acetic acid ligand and Sm ions to the MCM-41 host. These catalysts exhibited good performance in the synthesis of 5-substituted 1H-tetrazoles through [3 + 2] cycloaddition with NaN3. The catalyst also showed excellent recyclability without significant loss of activity for up to six cycles.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Wei-Quan Lin, Dan-Ru Wang, Wei-Jian Long, Li-Shan Lin, Ze-Xian Tao, Jun-Liang Liu, Zhao-Qing Liu, Ji-Dong Leng
Summary: By using a flexible bidentate phosphine oxide ligand, three stereoisomeric coordination polymers with different coordination environments of Dy (III) ions were successfully isolated. Magnetic property measurements and calculations indicated distinct magnetic behaviors arising from their fac/mer configurations. Comparing fac-Dy (III) to mer-Dy (III), mer-Dy (III) possesses more axial ground-state KDs and higher first excited KDs.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Yidian Wang, Qian-Cheng Luo, Yuan-Qi Zhai, Peng-Bo Jin, Zhendong Fu, Qi Sun, Fan-Ni Li, Yan-Zhen Zheng
Summary: In this study, two dysprosium(III) single-molecule magnets (SMMs) were synthesized using a pseudoallyl ligand and pentamethylcyclopentadienyl. The SMMs exhibited distinct energy barriers.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Yidian Wang, Qian-Cheng Luo, Yuan-Qi Zhai, Peng-Bo Jin, Zhendong Fu, Qi Sun, Fan-Ni Li, Yan-Zhen Zheng
Summary: In this study, two dysprosium(III) single-molecule magnets (SMMs) were prepared using a pseudoallyl ligand, N,N'-chelating amidinate (Am), and pentamethylcyclopentadienyl (Cp*). The obtained SMMs, [{(AmiPr)-DyCp*(mu-Cl)}2] and [AmdippDyCp*(Cl)(mu-Cl)Li(THF)3], exhibited distinct energy barriers (Ueff) of 97 and 472 K, respectively, with the latter value similar to a homoleptic Cp*-based Dy-SMM.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Shehzada Muhammad Sajid Jillani, Abdul Waheed, Umair Baig, Isam H. Aljundi
Summary: In this study, nanofiltration membranes decorated with functionalized zeolites were synthesized and applied for the removal of pharmaceutically active micro pollutants from water. The decorated membranes exhibited improved rejection performance and flux. Therefore, this approach holds great potential for various applications and further research.
ARABIAN JOURNAL OF CHEMISTRY
(2024)
Article
Chemistry, Multidisciplinary
Michal Liberka, Mikolaj Zychowicz, Wiktor Zychowicz, Szymon Chorazy
Summary: This method efficiently generates magnetic anisotropy of Dy-III centers by inserting aromatic N-oxide ligands on labile axial positions, providing a novel and convenient route to rationally designed single-molecule magnets.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Inorganic & Nuclear
Rong Sun, Chen Wang, Bing-Wu Wang, Zhe-Ming Wang, Yao-Feng Chen, Matthias Tamm, Song Gao
Summary: Lanthanide-based single-molecule magnets (Ln-SMMs) have shown the highest effective barrier and blocking temperature among all SMMs. Different strategies, including reducing coordination number and weakening molecular vibrations, have been proposed to construct high-performance SMMs. However, the synthesis of low-coordinate Ln(iii) complexes remains challenging due to their large ionic radius and ionic nature.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Physical
Fenglei Liu, Wei Huang, Shuoyu Wang, Baowei Hu
Summary: A novel magnetic amidoxime-functionalized MCM-41 material (Fe3O4@MCM-41-PDA/OA) was developed by loading Fe3O4 on amidoxime-functionalized MCM-41 using a simple strategy. The experimental parameters were optimized to improve the removal efficiency of uranium(VI) and europium(III) on Fe3O4@MCM-41-PDA/OA. The results showed that the adsorption process was a monolayer and chemisorption process.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Inorganic & Nuclear
Feng-Gui Chen, Wei Xu, Jing Chen, Hong-Ping Xiao, Hai-Ying Wang, Zhongyan Chen, Jing-Yuan Ge
Summary: In this study, a multifunctional metal-organic framework was successfully synthesized and structurally characterized. The framework exhibits good stability and can operate under various acid-base conditions, showing a visual color change with pH alteration. It demonstrates high proton conductivity at high humidity. Additionally, the framework displays ferromagnetic interaction and magnetic relaxation behavior.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Organic
Beibei Zhang, Xuemin Li, Xiaoxian Li, Zhenyang Yu, Bingyue Zhao, Xiaofan Wang, Yunfei Du, Kang Zhao
Summary: The interrupted Pummerer reaction of PhICl2 and sulfoxides was found to in situ generate reactive organosulfenyl chloride for the intramolecular electrophilic cyclization of 2-alkynylanilines, yielding 3-sulfenylated indole under metal-free conditions. Notably, sulfoxide regeneration can be achieved through the oxidation of formed sulfides by generated hypervalent iodine species.
JOURNAL OF ORGANIC CHEMISTRY
(2021)
Article
Chemistry, Physical
Nazanin Moeini, Somayeh Molaei, Mohammad Ghadermazi
Summary: A magnetic catalyst based on dysprosium ions immobilized on CoFe2O4 nanoparticles has been developed for selective oxidation of organic sulfides and synthesis of symmetrical disulfides. The catalyst can be easily separated using an external magnet and shows good recyclability without significant decrease in activity.
JOURNAL OF MOLECULAR STRUCTURE
(2021)
Article
Chemistry, Inorganic & Nuclear
Jianfeng Wu, Serhiy Demeshko, Sebastian Dechert, Franc Meyer
Summary: This study successfully synthesized dinuclear lanthanide complexes with different coordination geometries by using pyrazolate-based macrocyclic ligands, and revealed the importance of mu-OH bridges with short Dy-O bonds in determining the magnetic properties.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Mahsa Saberian, Alireza Nezamzadeh-Ejhieh
Summary: CuO was successfully supported on clinoptilolite nanoparticles (NCP) via ion exchange and calcination, forming CuO-NCP photocatalysts. CuO-NCP exhibited enhanced photocatalytic activity towards tetracycline (TC), and the best degradation performance was achieved under optimal conditions (25 ppm TC solution, pH 4.8, and 0.5 g/L catalyst).
SOLID STATE SCIENCES
(2024)
