کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1304579 | 974835 | 2008 | 4 صفحه PDF | دانلود رایگان |
Reaction of a flexible pyridinecarboxamide ligand N,N′-[(2,3,5,6-tetrafluoro-1,4-phenylene) bis(methylene)]bis(pyridine-4-carboxamide) (H2tfpbbp) with CuII chloride or perchlorate affords two coordination polymers {[Cu(H2tfpbbp)(tfpbbp)(H2O)] · 2DMF · 4H2O}n (1) and {[Cu(H2tfpbbp)2(ClO4)2] · 3H2O}n (2). Both complexes have 2-D (4,4) layered networks extended by the exo-bidentate bridging ligands, which however consist of distinct [Cu–ligand]4 meshes owing to the conformational difference of ligands. Their spectroscopic, thermal, and fluorescence properties have also been investigated.
This work presents two layered CuII coordination polymers with a flexible pyridinecarboxamide building block, and their significant structural discrepancy of the open and close 2-D networks results from the conformational isomerism of the ligands.Figure optionsDownload as PowerPoint slide
Journal: Inorganic Chemistry Communications - Volume 11, Issue 11, November 2008, Pages 1371–1374