Abstract
An organic molecular system with proton-tunable photoluminescence properties based on a mono-substituted bipyridinium derivative 1-(3-carboxybenzyl)-4,4′-bipyridinium chloride, which possesses both pyridine and carboxylic acid groups as proton-responsive units, has been developed. Through controlling the pH value of the self-assembled systems, three compounds with different degrees of protonation have been obtained. These compounds display distinctly different luminescence behaviors and undergo solid-state structural conversion in response to changes in pH values. In particular, luminescence switching triggered by acid-base vapor can be realized.
Original language | English |
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Pages (from-to) | 744-750 |
Number of pages | 7 |
Journal | Journal of Materials Chemistry C |
Volume | 1 |
Issue number | 4 |
DOIs | |
Publication status | Published - 28 Jan 2013 |
Externally published | Yes |