Rational Molecular Design and Synthesis of Highly Thermo‐ and Photostable Near‐Infrared‐Absorbing Heptamethine Cyanine Dyes with the Use of Fluorine Atoms. Issue 35 (22nd July 2016)

• Record Type: Journal Article
• Authors: Funabiki, Kazumasa; Yagi, Kazutaka; Ueta, Masato; Nakajima, Mitsuru; Horiuchi, Masako; Kubota, Yasuhiro; Mastui, Masaki
• Is Part Of: Chemistry. Volume 22:Issue 35(2016)
• Page Start: 12282
• Page End: 12285
• Publication Date: 2016-07-22
• Subjects: fluorine -- cyanines -- near-infrared -- photochemistry -- thermostability; Chemistry -- Periodicals; 540
• DOI: 10.1002/chem.201602955
• Languages: English
• ISSNs: 0947-6539

Abstract

Abstract: Highly thermo‐ and photostable, near‐infrared‐absorbing heptamethine cyanine dyes were achieved with the use of fluorine‐containing components. In particular, one prepared heptamethine cyanine dye, bearing a tetrakis(pentafluorophenyl)borate as a counter anion and an N ‐ethyl‐2, 2, 2‐trifluoroacetamido group at the meso position, showed not only a high decomposition temperature ( T dt ), but also very high photostability toward white LED irradiation. Abstract : Fluorine makes it strong ! Highly thermo‐ and photostable, near‐infrared‐absorbing heptamethine cyanine dyes were achieved with the use of fluorine‐containing components, such as tetrakis(pentafluorophenyl)borate as a counter anion and an a N ‐ethyl‐2, 2, 2‐trifluoroacetamido group at the meso position (see figure).