Product Details of 138219-98-4On November 30, 2018 ,《Interfacial self-assembly of bipyridyl-functionalized nanoSiO2-BPy@Ln(β-diketone)n composites and their luminescent properties》 appeared in Journal of Luminescence. The author of the article were Ma, Yue-Yang; Huang, Hong-Xiang; Chen, Meng; Qian, Dong-Jin. The article conveys some information:
Interfacial self-assembly provides an effective route to design and construct various metal-organic hybrid and composite materials with interesting optical and electroactive properties. Here, we reported the interfacial self-assembly of luminescent nano-composites through the coordination reaction of lanthanide salts of Ln(CF3SO3)3 (Ln = Eu and Tb) with the 2,2′-bipyridyl (BPy)-functionalized silica nano-linkers (nanoSiO2-BPy) and several β-diketone ligands. The assembling processes and the nano-materials as-prepared were characterized by using thermogravimetry, IR, UV-vis absorption and XPS, as well as field emission transmission electron microscopy (FE-TEM). The luminescent properties from both nanoSiO2-BPy linkers and lanthanide nano-composites were investigated in the solutions and solid powders, which revealed not only the broad emissions of nanoSiO2-BPy linkers between 400 and 520 nm, but also the sharp emissions between 480 and 750 nm, designated to the 4f-4f electron transitions of 5D4 → 7Fn (n = 3,4,5,6) and 5D0 → 7Fn (n = 0,1,2,3,4) of the Tb3+ and Eu3+ ions, resp. The relative emission intensity of the Ln3+ ions in the nano-composites has been found to be closely dependent on the compositions of the nano-composites, structure of the β-diketone ligands, and the excited wavelengths. Finally, the energy transfer process in the nano-composites was discussed. In the part of experimental materials, we found many familiar compounds, such as 4,4′-Bis(chloromethyl)-2,2′-bipyridine(cas: 138219-98-4Product Details of 138219-98-4)
4,4′-Bis(chloromethyl)-2,2′-bipyridine(cas: 138219-98-4) belongs to pyridine derivatives. Several pyridine derivatives play important roles in biological systems. While its biosynthesis is not fully understood, nicotinic acid (vitamin B3) occurs in some bacteria, fungi, and mammals. Product Details of 138219-98-4