Homochiral BINOL-Based Metal–Organic Frameworks for Luminescence Sensing of Hydrobenzoin Enantiomers

Inorganic Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Янв. 27, 2025

Luminescent chiral metal-organic frameworks (CMOFs) are promising candidates for the enantioselective sensing of important molecules. Herein, we report synthesis and characterization Zn Cd CMOFs based on 1,1'-bi-2-naphthol (BINOL)-derived 3,3',6,6'-tetra(benzoic acids), H4L-OEt H4L-OH. Four CMOFs, Zn-L-OEt, Zn-L-OH, Cd-L-OEt, Cd-L-OH, these ligands were crystallographically characterized. Zinc cations form 8-connected (8-c) penta-metallic secondary building units (SBUs), while cadmium 4-c trimetallic SBUs. These SBUs linked by L-OEt L-OH to noninterpenetrated 4, 8-c 4,8T41 zinc (Zn-L-OEt Zn-L-OH) 2-fold interpenetrated diamondoid (dia) (Cd-L-OEt Cd-L-OH), respectively. At a ligand concentration 24 μM, H4L-OH showed negligible luminescent quenching RR- SS-hydrobenzoin (HB) enantiomers with Stern-Völmer constants 29-89 M-1. In contrast, displayed efficient HB 583-1200 M-1, due significant preconcentration in CMOF channels via favorable host-guest interactions between The demonstrated luminescence selectivity RR-HB over SS-HB, Zn-L-OEt exhibiting highest ratio (Ksv(RR)/Ksv(SS)) 1.624. This work highlights potential applications.

Язык: Английский

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Enhancing enantioselectivity in chiral metal organic framework fluorescent sensors

Inorganic Chemistry Frontiers, Год журнала: 2024, Номер 11(13), С. 3877 - 3888

Опубликована: Янв. 1, 2024

Zn( ii ) chiral MOFs with BINOL and d -camphoric acid exhibit exceptional enantioselectivity as fluorescence sensors.

Язык: Английский

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Recent progress of chiral metal–organic frameworks in enantioselective separation and detection

Microchimica Acta, Год журнала: 2024, Номер 191(11)

Опубликована: Окт. 2, 2024

Язык: Английский

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Low-dimensional coordination polymers based on cobalt(II) and aliphatic N,N’-dioxide: Syntheses, structures and spectroscopic characterization

Inorganica Chimica Acta, Год журнала: 2024, Номер 572, С. 122288 - 122288

Опубликована: Июль 27, 2024

Язык: Английский

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