3 years ago

Two novel Cd(II)-based coordination polymers constructed from isomeric double betaine ligands: Syntheses, structures and fluorescent properties

Two novel Cd(II)-based coordination polymers constructed from isomeric double betaine ligands: Syntheses, structures and fluorescent properties
Two novel Cd2+ based coordination compounds based on two isomeric double betaine ligands (1,4-Bis(4-carboxylatopyridinium-1-methylene)benzene (H2L1Cl2) and 1,4-Bis(3-carboxylatopyridinium-1-methylene)benzene (H2L2Cl2)) were synthesized, structurally and optically characterized. Both compounds show two dimensional sheet architectures with different features depending on structural motifs that ranging from helical chain to linear chain, and the spatial arrangements of coordinated ligands as well as their unlike coordination modes. They further exhibit the way how three dimensional supramolecular isomers form via weak interactions. Meanwhile, two compounds exhibit intense fluorescence attributing to the ligands' emissions with stokes shift.

Publisher URL: www.sciencedirect.com/science

DOI: S1387700317308109

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