کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1301382 | 1498929 | 2015 | 4 صفحه PDF | دانلود رایگان |
• Four lanthanide-aminoterephthalate frameworks were synthesized and characterized.
• An interesting (4,4,6)-linked {42·84}{44·62}2{48·66·8}2 fsy net
• Solid state luminescences in the visible region were observed.
X-ray crystallography reveals four isostructural lanthanide polymeric solids, [Ln2(atp)3(H2O)2]·dmf·4H2O (atp = 2-aminoterephthalate; dmf = N,N′-dimethylformamide; Ln = La (1), Ce (2), Pr (3) and Nd (4), respectively) that are obtained from the solvothermal synthesis which are crystallized in an interesting 3D polymeric framework with a (4,4,6)-linked {42·84}{44·62}2{48·66·8}2fsy net topology. Upon excitation at 350 nm, they all show the solid state ligand-centered luminescences but both 2 and 3 also exhibit the weak lanthanide-based characteristic emissions in the visible region at room temperature. The cyclic voltammetric investigation indicates that 2 exhibits appreciable electrochemical activity for formaldehyde.
Four isostructural lanthanide polymeric solids, [Ln2(atp)3(H2O)2]·dmf·4H2O (atp = 2-aminoterephthalate; dmf = N,N′-dimethylformamide; Ln = La (1), Ce (2), Pr (3) and Nd (4), respectively) were obtained under hydrothermal conditions, and crystallized in an interesting 3D polymeric framework with a (4,4,6)-linked {42·84}{44·62}2{48·66·8}2fsy net topology. Their solid state luminescences in the visible region as well as the electrochemical behaviors for 2 have been investigated.Figure optionsDownload as PowerPoint slide
Journal: Inorganic Chemistry Communications - Volume 61, November 2015, Pages 140–143