A novel composite based on pyrene thiazole grafted on graphene oxide:physico-chemical characterization and electrochemical investigations was written by Tudose, Madalina;Baratoiu-Carpen, Rodica D.;Anghel, Elena Maria;Voicescu, Mariana;Somacescu, Simona;Culita, Daniela C.;Hanganu, Anamaria;Kuncser, Andrei;Radoi, Antonio. And the article was included in Materials Chemistry and Physics in 2021.COA of Formula: C18H11BrO The following contents are mentioned in the article:
The authors report the obtaining of a new composite starting from pyrene thiazole, a compound certified by NMR and its covalent grafting on the surface of graphene oxide. Novel material was synthesized in two stages: the 1st involving transformation of carboxyl groups of graphene oxide into acid chlorides and the 2nd the amide reaction between acid chloride and amine group of pyrene thiazole (PTC). Numerous characterization methods were used to certify this material, such as: Raman spectroscopy, fluorescence, IR spectroscopy and XPS, SEM and TEM. Their results show the successful covalent functionalization of graphene oxide with pyrene thiazole through the formation of amide bonds. The electrochem. study consisted of evaluating the redox behavior of the C screen printed electrodes modified with the new composite (GO-PTC) using caffeic acid, as analyte. From anal. point of view, it is relevant to be able to quantify the presence of caffeic acid and for such reason the authors used as anal. method the square wave voltammetry. The GO-PTC modified C screen printed electrodes were able to detect the caffeic acid over more than one order of magnitude (linear working range: 0.005-0.1 mM) and GO-PTC modified electrodes can be considered promising for other anal. studies. This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5COA of Formula: C18H11BrO).
2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Most organobromine compounds, like most organohalide compounds, are relatively nonpolar. The reactivity of organobromine compounds resembles but is intermediate between the reactivity of organochlorine and organoiodine compounds. For many applications, organobromides represent a compromise of reactivity and cost.COA of Formula: C18H11BrO
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary