Two zinc(II) coordination complexes based on an asymmetric multidentate ligand: syntheses,structures, selective fluorescence sensing of iron(III) ions and thermal analyses |
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Abstract: | The rational selection of ligands is vitally important in the construction of coordination complexes. Two novel ZnII complexes, namely bis(acetato‐κO)bis1‐(1H‐benzotriazol‐1‐ylmethyl)‐2‐propyl‐1H‐imidazole‐κN3]zinc(II) monohydrate, Zn(C13H15N5)2(C2H3O2)2]·H2O, ( 1 ), and bis(azido‐κN1)bis1‐(1H‐benzotriazol‐1‐ylmethyl)‐2‐propyl‐1H‐imidazole‐κN3]zinc(II), Zn(C13H15N5)2(N3)2], ( 2 ), constructed from the asymmetric multidentate imidazole ligand, have been synthesized under mild conditions and characterized by elemental analyses, IR spectroscopy and single‐crystal X‐ray diffraction analysis. Both complexes exhibit a three‐dimensional supramolecular network directed by different intermolecular interactions between discrete mononuclear units. The complexes were also investigated by fluorescence and thermal analyses. The experimental results show that ( 1 ) is a promising fluorescence sensor for detecting Fe3+ ions and ( 2 ) is effective as an accelerator of the thermal decomposition of ammonium perchlorate. |
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Keywords: | coordination complexes 1‐(benzotriazol‐1‐ylmethyl)‐2‐propylimidazole intermolecular interactions fluorescence sensor thermal analysis crystal structure |
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