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

Youngmee Kim, Byeong Kwon Park, Geun Hee Eom, Soo Hyun Kim, Hyun Min Park, Young S. Choi, Ho Gyeom Jang, Cheal Kim

Research output: Contribution to journalArticle

10 Citations (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).

Original languageEnglish
Pages (from-to)337-343
Number of pages7
JournalInorganica Chimica Acta
Volume366
Issue number1
DOIs
Publication statusPublished - 2011 Jan 1

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Chelation
Amines
Anions
catalytic activity
Catalyst activity
amines
Negative ions
Ligands
anions
catalysts
ligands
Catalysts
Enantiomers
X ray crystallography
enantiomers
Transesterification
Amides
Isomers
amides
crystallography

Keywords

  • Bis(2-pyridylmethyl)amine
  • Catalyst
  • Geometric isomers
  • Transesterification
  • Zinc(II) complexes

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Anion effects on construction of ZnII compounds with a chelating ligand bis(2-pyridylmethyl)amine and their catalytic activities. / Kim, Youngmee; Park, Byeong Kwon; Eom, Geun Hee; Kim, Soo Hyun; Park, Hyun Min; Choi, Young S.; Jang, Ho Gyeom; Kim, Cheal.

In: Inorganica Chimica Acta, Vol. 366, No. 1, 01.01.2011, p. 337-343.

Research output: Contribution to journalArticle

Kim, Youngmee ; Park, Byeong Kwon ; Eom, Geun Hee ; Kim, Soo Hyun ; Park, Hyun Min ; Choi, Young S. ; Jang, Ho Gyeom ; Kim, Cheal. / Anion effects on construction of ZnII compounds with a chelating ligand bis(2-pyridylmethyl)amine and their catalytic activities. In: Inorganica Chimica Acta. 2011 ; Vol. 366, No. 1. pp. 337-343.
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