In 2022,Bonfant, Giulia; Balestri, Davide; Perego, Jacopo; Comotti, Angiolina; Bracco, Silvia; Koepf, Matthieu; Gennari, Marcello; Marchio, Luciano published an article in ACS Omega. The title of the article was 《Phosphine Oxide Porous Organic Polymers Incorporating Cobalt(II) Ions: Synthesis, Characterization, and Investigation of H2 Production》.COA of Formula: C8H8Br2 The author mentioned the following in the article:
Suitably functionalized porous matrixes represent versatile platforms to support well-dispersed catalytic centers. In the present study, porous organic polymers (POPs) containing phosphine oxide groups were fabricated to bind transition metals and to be investigated for potential electrocatalytic applications. Crosslinking of mono- and di-phosphine monomers with multiple Ph substituents was subject to the Friedel-Crafts (F-C) reaction and the oxidation process, which generated phosphine oxide porous polymers with pore capacity up to 0.92 cm3/g and a surface area of about 990 m2/g. The formation of the R3P·BH3 borohydride adduct during synthesis allows to extend the library of phosphine-based monomeric entities when using FeCl3. The porous polymers were loaded with 0.8-4.2 weight/weight % of cobalt(II) and behaved as hydrogen evolution reaction (HER) catalysts with a Faradaic efficiency of up to 95% (5.81 x 10-5 mol H2 per 11.76 C) and a stable c.d. during repeated controlled potential experiments (CPE), even though with high overpotentials (0.53-0.68 V to reach a c.d. of 1 mA·cm-2). These studies open the way to the effectiveness of tailored phosphine oxide POPs produced through an inexpensive and ecofriendly iron-based catalyst and for the insertion of transition metals in a porous architecture, enabling electrochem. driven activation of small mols. The experimental part of the paper was very detailed, including the reaction process of 1,4-Bis(bromomethyl)benzene(cas: 623-24-5COA of Formula: C8H8Br2)
1,4-Bis(bromomethyl)benzene(cas: 623-24-5) belongs to organobromine compounds.Most of the natural organobromine compounds are produced by marine organisms , and several brominated metabolites with antibacterial , antitumor , antiviral , and antifungal activity have been isolated from seaweed, sponges, corals, molluscs, and others. Moreover, several studies demonstrate that the average proportion of bromine in drugs is significantly higher than that in natural products. COA of Formula: C8H8Br2
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary