Quality Control of 2-Bromo-1H-imidazoleIn 2021 ,《Template-Mediated Control over Polymorphism in the Vapor-Assisted Formation of Zeolitic Imidazolate Framework Powders and Films》 was published in Angewandte Chemie, International Edition. The article was written by Tu, Min; Kravchenko, Dmitry E.; Xia, Benzheng; Rubio-Gimenez, Victor; Wauteraerts, Nathalie; Verbeke, Rhea; Vankelecom, Ivo F. J.; Stassin, Timothee; Egger, Werner; Dickmann, Marcel; Amenitsch, Heinz; Ameloot, Rob. The article contains the following contents:
The landscape of possible polymorphs for some metal-organic frameworks (MOFs) can pose a challenge for controlling the outcome of their syntheses. Demonstrated here is the use of a template to control in the vapor-assisted formation of zeolitic imidazolate framework (ZIF) powders and thin films. Introducing a small amount of either ethanol or DMF vapor during the reaction between ZnO and 4,5-dichloroimidazole vapor results in the formation of the porous ZIF-71 phase, whereas other conditions lead to the formation of the dense ZIF-72 phase or amorphous materials. Time-resolved in situ small-angle X-ray scattering reveals that the porous phase is metastable and can be transformed into its dense polymorph. This transformation is avoided through the introduction of template vapor. The porosity of the resulting ZIF powders and films was studied by N2 and Kr physisorption, as well as positron annihilation lifetime spectroscopy. The templating principle was demonstrated for other members of the ZIF family as well, including the ZIF-7 series, ZIF-8_Cl, and ZIF-8_Br. In addition to this study using 2-Bromo-1H-imidazole, there are many other studies that have used 2-Bromo-1H-imidazole(cas: 16681-56-4Quality Control of 2-Bromo-1H-imidazole) was used in this study.
2-Bromo-1H-imidazole(cas: 16681-56-4) is a member of imidazole. Its exclusive structural characteristics with enviable electron-rich features are favorable for imidazole-based fused heterocycles to bind efficiently with an array of enzymes and receptors in biological systems through various weak interactions like hydrogen bonds, ion-dipole, cation-π, π-π stacking, coordination, Van der Waals forces, hydrophobic effects, etc., and therefore they demonstrate widespread bioactivities. Quality Control of 2-Bromo-1H-imidazole
Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem