Two zinc(II) complexes based on (fluorene-9,9-diyl)di-propanoic acid (H2L) and 1,3-bis(imidazol-1-yl)butane (BIB): Syntheses, crystal structures and luminescent properties

Abstract Two zinc(II) metal-organic coordination polymers, namely [ZnL(BIB)] n ·n(EtOH) ( 1 ) and [ZnL(BIB)] n ( 2 ) (where H 2 L = (fluorene-9,9-diyl)di- propanoic acid and BIB = 1,3-bis(imidazol-1-yl)butane) have been synthesized using the same starting reactants but different solvent medium. Both the complexes have been structurally characterized. Compound ( 1 ) exhibits a two-dimensional (2D) coordination framework. However, complex ( 2 ) is composed of 2D structure which is further resulted in a 3-fold interpenetrating structure. Thermogravimetric analyses (TGA) and luminescent properties of these two complexes have been discussed.