New non-traditional organogelator of β-diketone-boron difluoride complexes with terminal tetraphenylethene: Self-assembling and fluorescent sensory properties towards amines. (October 2017)

• Record Type: Journal Article
• Authors: Zhai, Lu; Zhang, Fushuang; Sun, Jingbo; Liu, Mingyang; Sun, Meng; Lu, Ran
• Is Part Of: Dyes and pigments. Volume 145(2017)
• Page Start: 54
• Page End: 62
• Publication Date: 2017-10
• Subjects: Non-traditional π-gelator -- Aggregation-induced emission -- Fluorescent sensor -- Amines; Dyes and dyeing -- Periodicals; Pigments -- Periodicals; 667.2
• DOI: 10.1016/j.dyepig.2017.05.047
• Languages: English
• ISSNs: 0143-7208

Abstract

Abstract: New β-diketone-boron difluoride complexes functionalized with tetraphenylethene (TPEB, DTPEB andTTPEB ) which exhibit AIE (aggregation-induced emission) properties have been synthesized. It was found that only boomerang-shapedDTPEB without any traditional gelation groups could form organogel in specific organic solvents. It gave strong orange red fluorescence in organogel as well as in xerogel-based film although it was non-emissive in solution. It is interesting that the emission ofDTPEB in xerogel-based film could be quenched significantly upon exposure to triethylamine (TEA) vapour, and the detection limit was as low as ca. 0.1 ppb. This work provides a strategy for the synthesis of a new rigid non-traditional π-gelator via the construction of a boomerang-shaped π-conjugated skeleton. In addition, the gelation of the π-gelators with AIE ability is a facile method for the fabrication of luminescent organic nanomaterials. Graphical abstract: Highlights: New difluoroboron β-diketonate complex with terminal tetraphenylethene were synthesized. The synthesized difluoroboron β-diketonate complexes exhibited AIE properties. Only boomerang-shaped complex without any traditional gelation groups could form organogel. The xerogel-based film emitted strong fluorescence, which was quenched significantly by gaseous amines.