Syntheses, Crystal Structures, and Fluorescence Properties of Three Coordination Polymers Constructed Based on Benzoic Acid and Its Derivatives
Three new different dimensional coordination polymers, namely, [Zn(BA(-))(2)(4,4'-bib)(1.5)](n) (1), [Zn(4-BrBA(-))(2)(1,4-bmb)](n) (2) and [Mn(4-BrBA(-))(2)(4,4.-bib)](n) (3) have been assembled through the mixed-ligand synthetic strategy (4-HBrBA = 4-bromobenzoic acid, HBA = benzoic acid, 1,4-bmb = 1,4-bis(1H-imidazol-4-yl)benzene, 4,4'-bib = 4,4'-bis(imidazolyl) biphenyl). Their structures have been determined by single-crystal X-ray diffraction analyses and further characterized by elemental analyses (EA), powder X-ray diffraction (PXRD), and thermogravimetric (TG) analyses. Single-crystal X-ray diffraction analysis reveals that the crystals of complexes 1 similar to 3 are all in triclinic systems, space group P-1(-) Complexes 1 and 2 are 0D binuclear structures, and 3 is a 1D chain. Moreover, the solid state fluorescence properties of 1 and 2 have been investigated.
4-bromobenzoic acid; benzoic acid; 1,4-bis[(1H-imidazol-1-yl)methyl]benzene; 4,4 '-bis(imidazolyl)biphenyl