Alkylated Aromatic Thioethers with Aggregation‐Induced Emission Properties—Assembly and Photophysics

• Published in: Chemistry, an Asian journal Vol. 14; no. 6; pp. 814 - 820
• Main Authors: Riebe, Steffen, Saccone, Marco, Stelzer, Jacqueline, Sowa, Andrea, Wölper, Christoph, Soloviova, Kateryna, Strassert, Cristian A., Giese, Michael, Voskuhl, Jens
• Format: Journal Article
• Language: English
• Published: Germany Wiley Subscription Services, Inc 15-03-2019
• Subjects: Aggregates; aggregation-induced emission; Alkylation; Aqueous solutions; Assembly; Chemistry; Crystal structure; Emission spectra; Excitation spectra; fluorescence; mesomorphism; Microscopes; Microscopy; Optical microscopy; Optical properties; Photoluminescence; self-assembly; Transmission electron microscopy; X-ray diffractometric analysis; mesomorphism; aggregation-induced emission; self-assembly; X-ray diffractometric analysis; fluorescence
• ISSN: 1861-4728; 1861-471X
• DOI: 10.1002/asia.201801564

In this contribution, we present the synthesis and self‐assembly of alkylated thioethers with interesting photophysical properties. To this end, the emission, absorption and excitation spectra in organic solvents and as aggregates in water were measured as well as the corresponding photoluminescence quantum yields and lifetimes. The aggregates in aqueous media were visualized and measured using transmission electron microscopy. Besides that, crystal structures of selected compounds allowed a detailed discussion of the structure–property relationship. Furthermore, the mesomorphic behavior was investigated using polarized optical microscopy (POM) as well as differential scanning calorimetry (DSC).
Shiny and soft: A series of alkylated aromatic thioethers were synthesized and thoroughly investigated with regard to their photophysical properties, their self‐assembly behavior as well as their formation of soft crystals. Furthermore, the structure–property relationship was studied in detail.