کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1312310 | 1499183 | 2013 | 10 صفحه PDF | دانلود رایگان |

• We present lanthanide coordination polymers of a new semirigid exo-bidentate ligand.
• The lanthanide coordination polymers exhibit interesting supramolecular properties.
• The luminescent properties of EuIII and TbIII complexes are discussed in detail.
A new semirigid exo-bidentate ligand was designed, synthesized, and used as building blocks for constructing lanthanide polymers both with interesting supramolecular structures and luminescent properties. Among a series of lanthanide nitrate complexes which have been characterized by elemental analysis, X-ray powder diffraction, IR spectroscopy and molar conductance analysis, five new coordination polymers have been determined using X-ray diffraction analysis. All the coordination polymers exhibit the same metal-to-ligand molar ratio of 1:1 and the semirigid exo-bidentate ligand as a bridging ligand, reacts with lanthanide nitrates forming a zigzag chain which further interconnected to three dimensional supramolecular structure in aid of cooperative C–H⋯O hydrogen bond and π–π stacking interactions. The europium and terbium containing compounds exhibit luminescence of the referring trivalent lanthanide ions, giving a red luminescence for EuIII and a green luminescence for TbIII triggered by an efficient antenna effect of the picolylsalicylamide group.
We present herein one dimensional lanthanide coordination polymers of a new semirigid exo-bidentate ligand which not only display interesting supramolecular structure but also possess strong luminescence properties.Figure optionsDownload as PowerPoint slide
Journal: Inorganica Chimica Acta - Volume 404, 1 August 2013, Pages 113–122