Electrochiroptical Response in Aqueous Media: 9,10-Dihydrophenanthrene-9,10-diyl Dications with Michlar's Hydrol Blue Chromophores Attached with Oligoethylene Glycol Units

Takanori Suzuki, Keisuke Hanada, Ryo Katoono, Yusuke Ishigaki, Sho Higasa, Hiroki Higuchi, Hirotsugu Kikuchi, Kenshu Fujiwara, Hidetoshi Yamada, Takanori Fukushima

Research output: Contribution to journalArticlepeer-review

Abstract

Upon electrochemical oxidation of configurationally stable biphenyl-based electron donors (<i>R</i><sub>ax</sub>)-<b>1a</b> and -<b>1b</b> to butane-1,4-diyl dications (<i>M</i>)-<b>2a</b><sup>2+</sup> and -<b>2b</b><sup>2+</sup>, drastic changes were induced not only in UV–vis but also in CD spectra. Because of the hydrophilic oligoethylene glycol units on the amino nitrogens, (<i>R</i><sub>ax</sub>)-<b>1b</b> and (<i>M</i>)-<b>2b</b><sup>2+</sup> are soluble in water, thus realizing the electrochiroptical behavior not only in organic solvents but also in aqueous media.
Original languageEnglish
Pages (from-to)982-984
Number of pages3
JournalChemistry Letters
Volume43
Issue number7
DOIs
Publication statusPublished - 2014

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