Two Anthracene-Thiophene Containing π-Conjugated Chromophores: Synthesis, Structure, and Optical Properties.

Herein we report two anthracene-thiophene based π-conjugated homologues, in which the synthesis and structural characterizations were accomplished by NMR, HR-MS, etc. Subsequently, their electron absorptions, photoluminescence (PL) emissions, and electrochemiluminescence (ECL) properties were further investigated. Interestingly, in the visible region of ~400–550 nm, both of the two homologous chromophores displayed strong PL emissions. Finally, intense and stable cathodic ECL emissions in the visible region of ~400–1000 nm for the title compounds were further observed, which provided excellent potential candidates for the future construction of high-performance ECL emitters. Besides, the phenyl group substituted homologue exhibited more intense in fluorescence spectrum, while relatively weak in ECL emission, which added new insights into the structure-properties relationships of anthracene-thiophene containing π-conjugated luminescent materials. [ABSTRACT FROM AUTHOR]