Highly blue luminescent triazine-amine conjugated oligomers.

摘要: The novel synthetic strategy and optical properties of highly fluorescent, triazine−amine conjugated oligomers are described herein. Under basic conditions, aromatic dinitrile compounds, NC−C6H4−X−C6H4−CN (X = NMe, O, CH2), underwent cyclic trimerization the cyano groups at both ends to give a series triazine-containing oligomers. can be expressed as (2n + 1) mer, where n represents number triazine rings in oligomer. absorption maximum an amine-conjugated trimer was outstandingly red-shifted compared with those other trimers CH2, O). In acidic media, showed two-step bathochromic shifts caused by protonation. maxima mers 1−4) did not depend on n; instead, shoulder peaks appeared long-wavelength region when ≥ 2. involving alternate conjugation triazines NMe through phenylene strong fluorescence ch...