ホウ素を含む機能性π電子系材料の設計と合成

Abstract

Utilization of boron, a group 13 element, as a key element for developing new functional electronic and optoelectronic materials is an important direction in the organoboron chemistry. Boron has several characteristic features, such as trigonal planar geometry for trivalent boron compounds, high Lewis acidity, and effective orbital interaction with π-conjugated frameworks through the vacant p-orbital (i.e., ρπ-π* conjugation). Exploiting these features of the boron element for molecular designs allows us to create sophisticated π-electron materials having attractive photophysical and electronic properties. We here present some progress in our chemistry, including B, B', B-trianthrylborazine (B3N3)-based molecular bundles, boryl-substituted thienylthiazole π-electron systems with intramolecular B-N coordination, borole- and dibenzoborole-based π-conjugated compounds, and boryl-substituted emissive organic solids.