Bis(benzimidazole)-based ligands-directed the various dimensionality of metal–organic complexes based on carboxylates co-ligands: Syntheses, structures and properties.

Highlights: [•] Four new complexes based on bis(benzimidazole)-based ligands have been obtained. [•] The flexibility of N-ligands have a great influence on the dimensionality of 1–4. [•] The electrochemical and fluorescence properties for 1–4 have been investigated. [ABSTRACT FROM AUTHOR]