10.1016/j.molstruc.2010.12.006
The research focuses on the synthesis, crystal structure, and luminescence properties of three new Cd(II) coordination polymers constructed using different carboxylate linkers and the pharmaceutical agent 1H-imidazo[4,5-f][1,10]-phenanthroline (IP). The chemicals that played a role in this research include benzene-1,2,4-tricarboxylic acid (H3L1), 2,2-bis(4-carboxyphenyl)hexafluoropropane (H2L2), 1,3-phenylenediacetic acid (H2L3), IP, and cadmium sulfate. By self-assembly of IP with cadmium sulfate in the presence of these different carboxylate linkers under mild conditions, three new coordination polymers with distinct structural characteristics were obtained. These polymers all exhibit 2D structural motifs, and the backbones of the carboxylates significantly influence the construction of the complexes. The study also investigates the thermal stabilities and solid-state luminescent properties of these crystalline materials, revealing that they possess high stabilities and intense fluorescent emissions, highlighting the importance of tuning the backbone of organic ligands in the crystal engineering of metal–organic frameworks.
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