2,3‐Diarylbenzo[b]arsole: Structural Modification and Polymerization for Tuning of Photophysical Properties.

2,3‐Diarylbenzo[b]arsoles were synthesized from zirconacycles and diiodophenylarsine. The structural modification to the luminophore was attained through diarylacetylene precursors, Suzuki–Miyaura coupling, and oxidation of the arsenic atom. The emission properties were controlled according to these modifications. The 2,3‐diarylbenzo[b]arsoles showed aggregation‐induced emission enhancement; the stronger emission was observed in the solid states than in solutions. In addition, Suzuki–Miyaura polycondensation and olefin metathesis polymerization produced main‐ and side‐chain polymers, respectively. The resultant polymers showed different emission behaviors such as aggregation caused quenching and aggregation induced emission enhancement. [ABSTRACT FROM AUTHOR]