Lanthanide-MOFs as multi-responsive photoluminescence sensor for sensitively detecting Fe3+, Cr2O72− and nitrofuran antibiotics† † Electronic supplementary information (ESI) available: Fig. S1–S15, Tables S1–S3, crystal structures in CIF format. CCDC 2180904 (1), 2180910 (2), 2180911 (3) and 2180912 (4). For ESI and crystallographic data in CIF or other electronic format see DOI: https://doi.org/10.1039/d3ra03817c

ABSTRACT: Fast and selective detection of contaminants plays a key role in meeting human health and environmental concerns. Herein, two groups of isostructural lanthanide MOFs, [Ln(Hpta)(oxalic acid)]·H2O (1-Eu, 2-Gd) and [Ln(pta)(oxalic acid)0.5(H2O)2]·2H2O (3-Eu, 4-Gd) (H2pta = 2-(4-pyridyl)-terephthalic acid, C2O4− = oxalic acid), were synthesized by solvothermal method. Single crystal X-ray diffraction reveals that 1 and 2 are 3D neutral frameworks, while 3 and 4 consist of 2D layers with parallelogram holes and stack into 3D networks through O–H⋯N and O–H⋯O hydrogen bonding interactions. All complexes remain crystalline and stable below 400 °C, suggesting preeminent thermostability. Noteworthily, only 3 shows excellent chemical stability in water and organic solvent. Therefore, the solid-state

SUBMITTER: Feng J 

PROVIDER: S-EPMC10475880 | biostudies-literature | 2023 Sep

REPOSITORIES: biostudies-literature