The cross-coupling reactions have been used in C-C bond formation which can be used extensively in optoelectronic materials for organic light emitting diode (OLED), organic photovoltaics and chemical biosensing. Here, we report twofold geminal C-C bond formation at 1,1-dibromoolefins via cross-coupling reactions of aromatic boronic esters over Pd catalysts for multiple topological configurations of π-conjugated molecules. We employ a series of recipes from a precursor toolbox to produce π-conjugated macrocycles, conjugated dendrimers, 1-dimensional linear conjugated polymers, 2-dimensional conjugated microporous polymers (CMPs) and crosslinking conjugated polymer nanoparticles (CCPNs). The π-conjugated macrocycles, dendrimers and 1-D polymers show characteristic aggregation-induced emission properties. 2-D conjugated microporous polymers possess unique porosity of 2-3 nm. This universal strategy toward definite topological configurations of π-conjugated molecules enables efficient coupling of aryl bromides with various coupling partners under mild conditions affording multiple topological conjugated systems with abundant optical and optoelectronic interest.
Ming-Qiang Zhu, Tao Chen, and Ze-Qiang Chen, "Geminal cross-coupling for AIE-active topological tetraarylethene fluorophores
(Conference Presentation)," Proc. SPIE 9721, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIII, 97210G (Presented at SPIE BiOS: February 17, 2016; Published: 27 April 2016); https://doi.org/10.1117/12.2216561.4848770149001.
Conference Presentations are recordings of oral presentations given at SPIE conferences and published as part of the conference proceedings. They include the speaker's narration along with a video recording of the presentation slides and animations. Many conference presentations also include full-text papers. Search and browse our growing collection of more than 12,000 conference presentations, including many plenary and keynote presentations.
Monte Carlo based light propagation models to improve efficacy of biophotonics based therapeutics of hollow organs and solid tumours including photodynamic therapy and photobiomodulation (Conference Presentation)