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Construction of ZnII compounds with a chelating 2,2′-dipyridylamine (Hdpa) ligand: Anion effect and catalytic activities

Title
Construction of ZnII compounds with a chelating 2,2′-dipyridylamine (Hdpa) ligand: Anion effect and catalytic activities
Authors
Kwak H.Sun H.L.Soo H.K.Young M.L.Eun Y.L.Byeong K.P.Eun Y.K.Kim C.Kim S.-J.Kim Y.
Ewha Authors
김성진김영미
SCOPUS Author ID
김성진scopus; 김영미scopus
Issue Date
2008
Journal Title
European Journal of Inorganic Chemistry
ISSN
1434-1948JCR Link
Citation
no. 3, pp. 408 - 415
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
The structures of new compounds containing ZnII ions and Hdpa (2,2′-dipyridylamine)-chelating ligands were determined. The Hdpa chelating ligands coordinate to ZnII ions to form mononuclear units (1 and 5), and intermolecular non-classical hydrogen-bond (C-H⋯O or N/C-H⋯I) interactions generate polymeric compounds. The chelating ligands with a bipyridyl moiety form mostly mononuclear complexes of different types (I, II and III), and the combination of this ligand with a sulfate anion can produce polymeric species (Type IV). Interestingly, homogeneous catalyst 1 catalyzed efficiently the transesterification of a variety of esters with different alcohols, and hydrogen-bonded polymer 5 showed the heterogeneous catalytic activity for the transesterification reactions. Preliminary selectivity test of primary over secondary alcohol protection in the presence of 1 provided, exclusively, the primary acetate, which suggests the potential utility of this catalyst to be selective for primary alcohols. © Wiley-VCH Verlag GmbH & Co. KGaA, 2008.
DOI
10.1002/ejic.200700823
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자연과학대학 > 화학·나노과학전공 > Journal papers
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