873866-36-5Relevant academic research and scientific papers
Polyoxometalate-templated lanthanide-organic hybrid layers based on 6 3-honeycomb-like 2D nets
Hao, Xiu-Li,Luo, Ming-Fa,Yao, Wei,Li, Yang-Guang,Wang, Yong-Hui,Wang, En-Bo
, p. 5971 - 5976 (2011)
The reaction of a double-betaine-containing ligand with LnPMo 12O40·nH2O (Ln = Dy, Tb and Er) led to the isolation of new polyoxometalate-templated lanthanide-organic hybrid layers with the molecular formula [Ln(L)1.5(H2O) 5][PMo12O40]·1.5CH3CN· 2H2O (Ln = Dy (1), Tb (2) and Er (3); L = 1,4-bis(pyridinil-4- carboxylato)-l,4-dimethylbenzene). All compounds were characterized by elemental analyses, TG analyses, IR and the single-crystal X-ray diffraction. Compounds 1-3 are isostructural and possess a 2D undulating cationic network [Ln(L) 1.5(H2O)5]n3n+ with the honeycomb-like cavities. Interestingly, the interval 2D networks are further connected by the H-bonds to form a 3D supramolecular framework. Moreover, two of such identical supramolecular frameworks are 2-fold interpenetrated with each other and encapsulate the α-Keggin-type [PMo12O 40]3- anionic templates and the solvent molecules. These composite compounds display both luminescent properties (induced by organic ligands and/or lanthanide ions) and electrocatalytic activities towards the reduction of nitrite.
