کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1334858 | 979471 | 2011 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Anion effects on the crystal structures of ZnII complexes containing 2,2′-bipyridine: Their photoluminescence and catalytic activities Anion effects on the crystal structures of ZnII complexes containing 2,2′-bipyridine: Their photoluminescence and catalytic activities](/preview/png/1334858.png)
Six new structures of ZnII complexes containing 2,2′-bipyridine (2,2′-bpy) ligands have been determined. Halide anions were used as simple coordinating ligands to form a tetrahedral environment around the ZnII ion. Nitrate and benzoate anions were used as chelating ligands to form an octahedral environment. For non-coordinating ClO4- and bridging SO42- anions, three 2,2′-bpy ligands chelate ZnII to form an octahedral environment, and both ClO4- and SO42- anions occupy empty positions between the metal cations for charge balance. Polymeric structures of the ZnII–2,2′-bpy complexes are produced by hydrogen bonding. [Zn(2,2′-bpy)(O2CC6H5)2] catalyzed efficiently the transesterification reaction of esters with methanol under the neutral conditions, while the remaining compounds showed very slow conversions.
Six new structures of ZnII complexes containing 2,2′-bipyridine (2,2′-bpy) ligands have been determined, and polymeric structures of ZnII–2,2′-bpy complexes can be produced by hydrogen bonding. Zn(2,2′-bpy)(O2CC6H5)2] catalyzed efficiently the transesterification reaction of esters with methanol under the neutral conditions.Figure optionsDownload as PowerPoint slideHighlights
► Six new structures of ZnII complexes containing 2,2′-bpy ligands have been determined.
► [Zn(2,2′-bpy)(O2CC6H5)2] catalyzed efficiently the transesterification of esters with methanol.
► The anion effect plays a very important role in the construction of the crystal structures.
Journal: Polyhedron - Volume 30, Issue 9, 26 May 2011, Pages 1555–1564