LAUSR

Abstract Benzimidazole-5-carboxylic acid (abbr. BMCA) and surfactant 1-octane sulfonic acid sodium (abbr. OS), were co-intercalated into the layered europium hydroxide (abbr. LEuH) by ion exchange reaction. Different molar ratios of OS and BMCA generated different arrangement. The composites with low content of OS may have two kinds of structure, corresponding to a bilayered and a monolayered arrangement. The composites with high content of OS may have only one kind of structure, corresponding to a monolayered arrangement. The thermal stability of organics was enhanced after intercalation. The combination of the BMCA anions with the positively-charged LEuH layers generated hybrid materials exhibiting novel luminescence properties. This work benefits the improvement of stability and fluorescence property of benzimidazoles and offers a beneficial approach to fabricate organic-inorganic hybrid materials with controllable structures and luminescence properties.