Molecules, Год журнала: 2024, Номер 29(18), С. 4495 - 4495

Опубликована: Сен. 22, 2024

A Dy(III) coordination polymer (CP), [Dy(spasds)(H2O)2]n (1) (Na2Hspasds = 5-(4-sulfophenylazo)salicylic disodium salt), has been synthesized using a hydrothermal method and characterized. 1 features 2D layered structure, where the spasda3− anions act as pentadentate ligands, adopting carboxylate, sulfonate phenolate groups to bridge with four Dy centers in η3-μ1: μ2, η2-μ1: μ1, monodentate modes, respectively. It possesses unique (4,4)-connected net Schläfli symbol of {44·62}{4}2. The luminescence study revealed that exhibited broad fluorescent emission band at 392 nm. Moreover, visual blue color confirmed by CIE plot. can serve dual-functional luminescent sensor toward Fe3+ MnO4− through quenching effect, limits detection (LODs) 9.30 × 10−7 1.19 10−6 M, LODs are relatively low comparison those reported CP-based sensors for MnO4−. In addition, also high selectivity remarkable anti-interference ability, well good recyclability least five cycles. Furthermore, potential application was studied simulated wastewater samples different concentrations. possible sensing mechanisms were investigated Ultraviolet-Visible (UV-Vis) absorption spectroscopy density functional theory (DFT) calculations. results turn-off effects caused competitive photoinduced electron transfer (PET), inner filter effect (IFE),

Язык: Английский