Li+ selective podand-type fluoroionophore based on a diphenyl sulfoxide derivative bearing two pyrene groups was written by Nishimura, Yukihiro;Takemura, Tetsuo;Arai, Sadao. And the article was included in Molecules in 2011.Electric Literature of C18H11BrO The following contents are mentioned in the article:
Podand-type fluoroionophores having two pyrene moieties, bis(pyrenylacetyloxy)diphenyl sulfide 1,1′-[thiobis(2,1-phenyleneoxy)]bis[1-(1-pyrenyl)ethanone], bis(pyrenylacetyloxy)diphenyl sulfoxide 1,1′-[(sulfinyl)bis(2,1-phenyleneoxy)]bis[1-(1-pyrenyl)ethanone] and bis(1-pyrenylacetyloxy)diphenyl sulfone 1,1′-[(sulfonyl)bis(2,1-phenyleneoxy)]bis[1-(1-pyrenyl)ethanone] were designed and the synthesis of the target compounds was achieved by by connecting two 1-pyrenecarbonylmethyl groups with hydroxy groups of 2,2′-dihydroxydiphenyl sulfide, sulfoxide and sulfone, resp. Their complexation behavior toward alkali metal ions was examined by fluorescence spectroscopy. Among these fluoroionophores the product with a sulfinyl group, showed high selectivity toward lithium ion (Li+). This study involved multiple reactions and reactants, such as 2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5Electric Literature of C18H11BrO).
2-Bromo-1-(pyren-1-yl)ethanone (cas: 80480-15-5) belongs to organobromine compounds. Many of the organo bromine compounds are relatively nonpolar. Bromine is more electronegative than carbon (2.8 vs 2.5) and hence the carbon in a carbon–bromine bond is electrophilic in nature. When the molecular ion is detected, the bromine and chlorine isotope patterns are very distinct, but caution is to be exercised for certain mixed chlorinated/brominated compounds, which can look similar to homohalogen patterns.Electric Literature of C18H11BrO
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary