View : 98 Download: 0

Anion effects on construction of ZnII compounds with a chelating ligand bis(2-pyridylmethyl)amine and their catalytic activities

Title
Anion effects on construction of ZnII compounds with a chelating ligand bis(2-pyridylmethyl)amine and their catalytic activities
Authors
Kim Y.Park B.K.Eom G.H.Kim S.H.Park H.M.Choi Y.S.Jang H.G.Kim C.
Ewha Authors
김영미
SCOPUS Author ID
김영미scopus
Issue Date
2011
Journal Title
Inorganica Chimica Acta
ISSN
0020-1693JCR Link
Citation
vol. 366, no. 1, pp. 337 - 343
Indexed
SCI; SCIE; SCOPUS WOS scopus
Abstract
Three ZnII complexes containing bispicam ligands (bispicam = bis(2-pyridylmethyl)amine), [Zn(bispicam)2](NO3) 2·2CH3OH 4A, [Zn(bispicam)(NO3) 2] 4B, and [Zn(bispicam)2](OTf)2 6, were obtained, and their structures were determined by X-ray crystallography. Complexes of the general formulation [Zn(bispicam)2]X2 (X = Cl- (1), Br- (2), I- (3), NO3 - (4A), ClO4 - (5), and OTf- (6)) show fac geometric isomers (a) or enantiomers (c) and (d) according to anions. Moreover, complexes 4-6 could carry out the catalytic transesterification of a range of esters with methanol under the mild conditions. Importantly, the catalyst 4B with an unsaturated structure has shown better efficiency than the catalysts, 4A, 5, and 6, having saturated structures. To explain this reactivity difference, two different reaction mechanisms have been proposed (metal-based vs. amide N-H-based). © 2010 Elsevier B.V. All rights reserved.
DOI
10.1016/j.ica.2010.11.029
Appears in Collections:
자연과학대학 > 화학·나노과학전공 > Journal papers
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE