کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1306229 | 975076 | 2009 | 5 صفحه PDF | دانلود رایگان |
Reaction of a rigid conjugated clamp-like ligand N,N′-bis(pyridin-3-yl)-2,6-pyridinedicarboxamide (bppdca) with ZnSO4·7H2O or CoSO4·7H2O resulted in the formation of two new polymers, namely, {[Zn2(bppdca)(SO4)2(DMF)2]·(DMF)}n (1) and {[Co(bppdca)(SO4)(CH3OH)(DMF)]·H2O}n (2). Both 1 and 2 feature one-dimensional double-chain structures with macrocyclic subunits, and the chains further self-assemble into a higher-dimensional framework via the hydrogen-bonding and π–π stacking interactions. Fluorescence studies show that the free ligand displays a strong fluorescence emission in solid state at room temperature, but in 1 and 2, the complexation of the ligand with metal ions and weak intermolecular interactions make the fluorescence emission partial quenching.
Reaction of a rigid clamp-like ligand N,N′-bis(pyridin-3-yl)-2,6-pyridinedicarboxamide (bppdca) with ZnSO4·7H2O or CoSO4·7H2O resulted in two new polymers, namely, {[Zn2(bppdca)(SO4)2(DMF)2]·DMF}n (1) and {[Co(bppdca)(SO4)(CH3OH)(DMF)]·H2O}n (2). Single-crystal X-ray diffraction reveals that both structures were one-dimensional double chain connected by weak interactions generating higher dimension with macrocycles. Their fluorescence properties were reported in this article.Figure optionsDownload as PowerPoint slide
Journal: Inorganic Chemistry Communications - Volume 12, Issue 8, August 2009, Pages 750–754