Construction of red-emitting iminocoumarin-based fluorescent borate complexes with a large Stokes shift. (February 2020)

• Record Type: Journal Article
• Authors: Ren, Xiaojie; Guo, Man; Gong, Junyi; Zhang, Yun; Yang, Lei; Liu, Xingjiang; Song, Xiangzhi
• Is Part Of: Dyes and pigments. Volume 173(2020)
• Publication Date: 2020-02
• Subjects: Borate -- Tetra-hydro-quinoxaline -- Stokes shift -- Red-emitting -- Fluorescent dyes; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2019.108007
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: Tetra-hydro-quinoxaline (THQ) moiety was used as the electron donor in the construction of a series of red-emitting iminocoumarin-based borate dyes with good fluorescent quantum yields, large Stokes shifts and long-wavelength emissions. These dyes could stain cells and image zebrafish with good performance. Graphical abstract: Image 1 Highlights: A series of new fluorescent borate complexes with enhanced ICT process. Red/NIR emissions (up to 650 nm in DMSO) and large Stokes shift (up to 122 nm in DMSO). Good fluorescent quantum yields (0.65-0.84 in DCM) and large absorption molecular extinction coefficients (104 M-1cm-1). Red/NIR solid fluorescence. Potential application for bioimaging in cells and zebrafish.