A bi-functional 3D PbII–organic framework for Knoevenagel condensation reaction and highly selective luminescent sensing of Cr2O72−
2019; Elsevier BV; Volume: 105; Linguagem: Inglês
10.1016/j.inoche.2019.04.042
ISSN1879-0259
Autores Tópico(s)Multicomponent Synthesis of Heterocycles
ResumoA novel 3D PbII–organic framework {Pb(AIA)2}n (denoted as 1) can be successfully constructed by the assembly of 5-aminonicotinic acid (HAIA) and PbII cation under hydrothermal condition. The prepared 1 can be investigated and characterized by many technologies, including single-crystal X-ray diffraction, powder X-ray diffraction, luminescent spectrum, elemental analysis (C, H, and N), UV–Vis spectrum, as well as thermogravimetric analysis, respectively. The resultant 1 has lots of uncoordinated pyridine nitrogen atoms and –NH2 in the structure, which can be commonly considered as Lewis basic sites to catalysis Knoevenagel condensation reaction. Meanwhile, the as-synthesized 1 with the luminescent property can be considered as a luminescent sensor for selective sensing of Cr2O72− with excellent recyclability at least reusing four runs.
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