peri-Acenoacene Ribbons with Zigzag BN-Doped Peripheries.

ABSTRACT: Here, we report the synthesis of BN-doped graphenoid nanoribbons, in which peripheral carbon atoms at the zigzag edges have been selectively replaced by boron and nitrogen atoms as BN and NBN motifs. This includes high-yielding ring closure key steps that, through N-directed borylation reaction using solely BBr₃, allow the planarization of meta-oligoarylenyl precursors, through the formation of B-N and B-C bonds, to give ter-, quater-, quinque-, and sexi-arylenyl nanoribbons. X-ray single-crystal diffraction studies confirmed the formation of the BN and NBN motifs and the zigzag-edged topology of the regularly doped ribbons. Steady-state absorption and emission investigations at room temperature showed a systematic bathochromic shift of the UV-vis absorption and em

SUBMITTER: Franceschini M 

PROVIDER: S-EPMC9716572 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature