Crystal structures and catalytic activities of Zn(II) compounds containing btp ligands

Ji Young Ryu; Jung Hee Han; Jun Yong Lee; Sung Jin Hong; Seung Hoon Choi; Cheal Kim; Sung Jin Kim; Youngmee Kim

doi:10.1016/j.ica.2005.05.033

Crystal structures and catalytic activities of Zn(II) compounds containing btp ligands

Ji Young Ryu, Jung Hee Han, Jun Yong Lee, Sung Jin Hong, Seung Hoon Choi, Cheal Kim, Sung Jin Kim, Youngmee Kim

Department of Chemistry & Nanoscience

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

The structures of new compounds containing Zn(II) ions and btp (2,6-bis(N′-1,2,4-triazolyl)pyridine) ligands have been determined. With coordinating chloride and bromide anions, Zn(II) produces chains 2 and 3 containing C-H⋯X(Cl or Br) weak interactions to build crystal structures and they are face-to-face aligned. With non-coordinating ClO4-andPF6- anions, Zn(II) produces monomeric compounds 4 and 5 containing H-bonds between anions and water ligands and face-to-face π-π interactions to build crystal structures. The previously reported polymeric compound 1 containing [Zn(NO ₃)(H₂O)₂(btp)₂]⁺ units bridged by btp ligands was found to carry out the catalytic transesterification of a range of esters with methanol at room temperature under mild conditions, whereas it did not catalyze the ring opening of epoxide (easier reaction) with methanol. These results indicate that the polymeric compound 1 shows selective reactivity. In addition, the catalyst 1 has shown even better catalytic activity than the corresponding Zn(NO₃)₂ salt.

Original language	English
Pages (from-to)	3659-3670
Number of pages	12
Journal	Inorganica Chimica Acta
Volume	358
Issue number	13
DOIs	https://doi.org/10.1016/j.ica.2005.05.033
State	Published - 1 Sep 2005

Bibliographical note

Funding Information:
Financial support from the Korean Science & Engineering Foundation (ABRL R14-2003-014-01-001-0) and Korea Research Foundation (2002-070-C00053 and DP0270) is gratefully acknowledged.

Keywords

Catalyst
Crystal structures
Polymeric compounds
Ring opening reaction
Transesterification
Zn(II) complexes
btp ligand

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10.1016/j.ica.2005.05.033

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title = "Crystal structures and catalytic activities of Zn(II) compounds containing btp ligands",

abstract = "The structures of new compounds containing Zn(II) ions and btp (2,6-bis(N′-1,2,4-triazolyl)pyridine) ligands have been determined. With coordinating chloride and bromide anions, Zn(II) produces chains 2 and 3 containing C-H⋯X(Cl or Br) weak interactions to build crystal structures and they are face-to-face aligned. With non-coordinating ClO4-andPF6- anions, Zn(II) produces monomeric compounds 4 and 5 containing H-bonds between anions and water ligands and face-to-face π-π interactions to build crystal structures. The previously reported polymeric compound 1 containing [Zn(NO 3)(H2O)2(btp)2]+ units bridged by btp ligands was found to carry out the catalytic transesterification of a range of esters with methanol at room temperature under mild conditions, whereas it did not catalyze the ring opening of epoxide (easier reaction) with methanol. These results indicate that the polymeric compound 1 shows selective reactivity. In addition, the catalyst 1 has shown even better catalytic activity than the corresponding Zn(NO3)2 salt.",

keywords = "Catalyst, Crystal structures, Polymeric compounds, Ring opening reaction, Transesterification, Zn(II) complexes, btp ligand",

author = "Ryu, {Ji Young} and Han, {Jung Hee} and Lee, {Jun Yong} and Hong, {Sung Jin} and Choi, {Seung Hoon} and Cheal Kim and Kim, {Sung Jin} and Youngmee Kim",

note = "Funding Information: Financial support from the Korean Science & Engineering Foundation (ABRL R14-2003-014-01-001-0) and Korea Research Foundation (2002-070-C00053 and DP0270) is gratefully acknowledged. ",

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AU - Ryu, Ji Young

AU - Han, Jung Hee

AU - Lee, Jun Yong

AU - Hong, Sung Jin

AU - Choi, Seung Hoon

AU - Kim, Cheal

AU - Kim, Sung Jin

AU - Kim, Youngmee

N1 - Funding Information: Financial support from the Korean Science & Engineering Foundation (ABRL R14-2003-014-01-001-0) and Korea Research Foundation (2002-070-C00053 and DP0270) is gratefully acknowledged.

PY - 2005/9/1

Y1 - 2005/9/1

N2 - The structures of new compounds containing Zn(II) ions and btp (2,6-bis(N′-1,2,4-triazolyl)pyridine) ligands have been determined. With coordinating chloride and bromide anions, Zn(II) produces chains 2 and 3 containing C-H⋯X(Cl or Br) weak interactions to build crystal structures and they are face-to-face aligned. With non-coordinating ClO4-andPF6- anions, Zn(II) produces monomeric compounds 4 and 5 containing H-bonds between anions and water ligands and face-to-face π-π interactions to build crystal structures. The previously reported polymeric compound 1 containing [Zn(NO 3)(H2O)2(btp)2]+ units bridged by btp ligands was found to carry out the catalytic transesterification of a range of esters with methanol at room temperature under mild conditions, whereas it did not catalyze the ring opening of epoxide (easier reaction) with methanol. These results indicate that the polymeric compound 1 shows selective reactivity. In addition, the catalyst 1 has shown even better catalytic activity than the corresponding Zn(NO3)2 salt.

AB - The structures of new compounds containing Zn(II) ions and btp (2,6-bis(N′-1,2,4-triazolyl)pyridine) ligands have been determined. With coordinating chloride and bromide anions, Zn(II) produces chains 2 and 3 containing C-H⋯X(Cl or Br) weak interactions to build crystal structures and they are face-to-face aligned. With non-coordinating ClO4-andPF6- anions, Zn(II) produces monomeric compounds 4 and 5 containing H-bonds between anions and water ligands and face-to-face π-π interactions to build crystal structures. The previously reported polymeric compound 1 containing [Zn(NO 3)(H2O)2(btp)2]+ units bridged by btp ligands was found to carry out the catalytic transesterification of a range of esters with methanol at room temperature under mild conditions, whereas it did not catalyze the ring opening of epoxide (easier reaction) with methanol. These results indicate that the polymeric compound 1 shows selective reactivity. In addition, the catalyst 1 has shown even better catalytic activity than the corresponding Zn(NO3)2 salt.

KW - Catalyst

KW - Crystal structures

KW - Polymeric compounds

KW - Ring opening reaction

KW - Transesterification

KW - Zn(II) complexes

KW - btp ligand

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JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 13

ER -

Crystal structures and catalytic activities of Zn(II) compounds containing btp ligands

Abstract

Bibliographical note

Keywords

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