Imidazole is a heterocyclic compound with a five-membered planar ring. It is amphoteric and highly polar. 1739-84-0, formula is C5H8N2, Name is 1,2-Dimethyl-1H-imidazole. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents. Recommanded Product: 1,2-Dimethyl-1H-imidazole.
Sahm, Constantin D.;Mates-Torres, Eric;Eliasson, Nora;Sokolowski, Kamil;Wagner, Andreas;Dalle, Kristian E.;Huang, Zehuan;Scherman, Oren A.;Hammarstrom, Leif;Garcia-Melchor, Max;Reisner, Erwin research published 《 Imidazolium-modification enhances photocatalytic CO2 reduction on ZnSe quantum dots》, the research content is summarized as follows. Colloidal photocatalysts can utilize solar light for the conversion of CO2 to carbon-based fuels, but controlling the product selectivity for CO2 reduction remains challenging, in particular in aqueous solution Here, we present an organic surface modification strategy to tune the product selectivity of colloidal ZnSe quantum dots (QDs) towards photocatalytic CO2 reduction even in the absence of transition metal co-catalysts. Besides H2, imidazolium-modified ZnSe QDs evolve up to 2.4 mmolCO gZnSe-1 (TONQD > 370) after 10 h of visible light irradiation (AM 1.5G, λ > 400 nm) in aqueous ascorbate solution with a CO-selectivity of up to 20%. This represents a four-fold increase in CO-formation yield and 13-fold increase in CO-selectivity compared to non-functionalized ZnSe QDs. The binding of the thiolated imidazolium ligand to the QD surface is characterized quant. using 1H-NMR spectroscopy and isothermal titration calorimetry, revealing that a subset of 12 to 17 ligands interacts strongly with the QDs. Transient absorption spectroscopy reveals an influence of the ligand on the intrinsic charge carrier dynamics through passivating Zn surface sites. D. functional theory calculations indicate that the imidazolium capping ligand plays a key role in stabilizing the surface-bound *CO2– intermediate, increasing the yield and selectivity toward CO production Overall, this work unveils a powerful tool of using organic capping ligands to modify the chem. environment on colloids, thus enabling control over the product selectivity within photocatalyzed CO2 reduction
Recommanded Product: 1,2-Dimethyl-1H-imidazole, 1,2-Dimethylimidazole is used in the synthesis of 1,2-dimethyl-3-n-butylimidazoliumchloride and 1,2-dimethyl-3-n-propylimidazolium chloride. It also can be used in the synthesis of 1-(2-methoxyethyl)-2,3-dimethylimidazolium chloride and hexafluorophosphate salts.
1,2-Dimethylimidazole is a heterocyclic compound that contains nitrogen and carbon. It can be produced by the reaction between glyoxal and fatty acid in the presence of a base. 1,2-Dimethylimidazole has been shown to have biological properties such as an antioxidant effect. It is also used as a chemical intermediate for production of other chemicals such as 2-methylimidazole and 3-methylimidazole. 1,2-Dimethylimidazole has been shown to react with metal carbonyls to produce methylimines, which are useful intermediates in organic synthesis. The reaction mechanism involves hydrogen bonding and steric interactions between the imidazole ring and the metal carbonyl reactant., 1739-84-0.
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem