Anion effects on the crystal structures of Zn-II complexes containing 2,2 '-bipyridine: Their photoluminescence and catalytic activities
- Authors
- Eom, Geun Hee; Park, Hyun Min; Hyun, Min Young; Jang, Seung Pyo; Kim, Cheal; Lee, Jun Ho; Lee, Suk Joong; Kim, Sung-Jin; Kim, Youngmee
- Issue Date
- 26-5월-2011
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Zn-II complexes; Photoluminescence; 2,2 ' -Bipyridine; Catalyst; Transesterification
- Citation
- POLYHEDRON, v.30, no.9, pp.1555 - 1564
- Indexed
- SCIE
SCOPUS
- Journal Title
- POLYHEDRON
- Volume
- 30
- Number
- 9
- Start Page
- 1555
- End Page
- 1564
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112428
- DOI
- 10.1016/j.poly.2011.03.040
- ISSN
- 0277-5387
- Abstract
- Six new structures of Zn-II 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 Zn-II 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 Zn-II 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 Zn-II-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. (C) 2011 Elsevier Ltd. All rights reserved.
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