Series of Fluorescent Coordination Polymers Exhibiting Structural Evolution and Optimized Selective Ion Detection DOI
Ding Chen, Xing Li, Yuxuan Wang

и другие.

Crystal Growth & Design, Год журнала: 2025, Номер 25(5), С. 1497 - 1505

Опубликована: Фев. 10, 2025

A series of Zn(II)-H2L (H2L = 3,3′-(9,9-diethyl-9H-fluorene-2,7-diyl)dibenzoic acid) fluorescent coordination polymers were synthesized using a mixed-ligand approach through solvothermal methods, demonstrating structural transition from three-dimensional (3D) to two-dimensional (2D) frameworks. The evolution is driven by the gradational size variation pyridine-based ligands, L1 (9,10-di(4-pyridyl)anthracene), L2 (1,4-bis(pyridyl)benzene), and L3 (4,4′-bipyridine), resulting in distinct spatial packing modes. polymers, designated as {[Zn2(L)2(L1)]}n (1), {[Zn2(L)2(L2)]}n (2), {[Zn2(L)2(L3)]}n (3), feature 3D interpenetrated 2D alternating structures, significantly influencing their properties for ion detection. Notably, compound 3 exhibits marked selectivity sensitivity toward trivalent metal ions (Cr3+, Al3+, Fe3+) with detection limits 0.19 μM Cr3+, 0.30 0.37 Fe3+. This research provides valuable insights into designability metal–organic frameworks advances development MOF-based probes selective detection, highlighting impact systematic adjustments on sensing performance.

Язык: Английский

Series of Fluorescent Coordination Polymers Exhibiting Structural Evolution and Optimized Selective Ion Detection DOI
Ding Chen, Xing Li, Yuxuan Wang

и другие.

Crystal Growth & Design, Год журнала: 2025, Номер 25(5), С. 1497 - 1505

Опубликована: Фев. 10, 2025

A series of Zn(II)-H2L (H2L = 3,3′-(9,9-diethyl-9H-fluorene-2,7-diyl)dibenzoic acid) fluorescent coordination polymers were synthesized using a mixed-ligand approach through solvothermal methods, demonstrating structural transition from three-dimensional (3D) to two-dimensional (2D) frameworks. The evolution is driven by the gradational size variation pyridine-based ligands, L1 (9,10-di(4-pyridyl)anthracene), L2 (1,4-bis(pyridyl)benzene), and L3 (4,4′-bipyridine), resulting in distinct spatial packing modes. polymers, designated as {[Zn2(L)2(L1)]}n (1), {[Zn2(L)2(L2)]}n (2), {[Zn2(L)2(L3)]}n (3), feature 3D interpenetrated 2D alternating structures, significantly influencing their properties for ion detection. Notably, compound 3 exhibits marked selectivity sensitivity toward trivalent metal ions (Cr3+, Al3+, Fe3+) with detection limits 0.19 μM Cr3+, 0.30 0.37 Fe3+. This research provides valuable insights into designability metal–organic frameworks advances development MOF-based probes selective detection, highlighting impact systematic adjustments on sensing performance.

Язык: Английский

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