Anion effects on the crystal structures of Zn^II complexes containing 2,2′-bipyridine: Their photoluminescence and catalytic activities

详细信息    查看全文

• 作者：Geun Hee Eom^a ; Hyun Min Park^a ; Min Young Hyun^a ; Seung Pyo Jang^a ; Cheal Kim^a ; ^{chealkim@seoultech.ac.kr"" rel=""nofollow} ; Jun Ho Lee^b ; Suk Joong Lee^b ; ^{slee1@korea.ac.kr"" rel=""nofollow} ; Sung-Jin Kim^c ; ^{sjkim@ewha.ac.kr"" rel=""nofollow} ; Youngmee Kim^c
• 关键词：Zn^II complexes ; Photoluminescence ; 2 ; 2′ ; -Bipyridine ; Catalyst ; Transesterification
• 刊名：Polyhedron
• 出版年：2011
• 出版时间：26 May 2011
• 年：2011
• 卷：30
• 期：9
• 页码：1555-1564
• 全文大小：1455 K

文摘

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 and bridging anions, three 2,2′-bpy ligands chelate Zn^II to form an octahedral environment, and both and 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.