Synthesis, structure, and heterogeneous catalytic activity of tungsten chalcogenide cubane cluster containing alkaline earth metal complex

Ji Young Kwon; Youngmee Kim; Sung Jin Kim; Sun Hwa Lee; Han Kwak; Cheal Kim

doi:10.1016/j.ica.2007.09.044

Synthesis, structure, and heterogeneous catalytic activity of tungsten chalcogenide cubane cluster containing alkaline earth metal complex

Ji Young Kwon
, Youngmee Kim
, Sung Jin Kim
, Sun Hwa Lee
, Han Kwak
, Cheal Kim

Dept. of Fine Chemistry

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

12 Scopus citations

Abstract

A new compound containing a cubane tungsten chalcogenide cluster [W₄(μ₃-Te)₄(CN)₁₂]^6- and Ca²⁺ complex units has been prepared by the reaction of aqueous solution of K₆[W₄(μ₃-Te)₄(CN)₁₂] · 5H₂O with the solution of a Ca(NO₃)₂ and phen(1,10-phenanthroline) (1:2 molar ratio) in a solvent mixture of H₂O/EtOH. The structure of [{Ca(phen)₂(H₂O)}{Ca(phen)(H₂O)₄}{Ca(phen)₂(H₂O)₃}][W₄Te₄(CN)₁₂] · 5H₂O 1 has been determined by X-ray crystallography. Compound 1 contains [{Ca(phen)(H₂O)₄}{Ca(phen)₂(H₂O)₃}][W₄(μ₃- Te)₄(CN)₁₂] units bridged by {Ca(phen)₂(H₂O)}²⁺ units to form an one-dimensional zigzag chain structure. Interestingly, compound 1 showed a heterogeneous catalytic activity in the transesterification of a range of esters with methanol under the mild conditions. Moreover, it can be reused without any loss of activity through 10 runs with ester.

Original language	English
Pages (from-to)	1885-1890
Number of pages	6
Journal	Inorganica Chimica Acta
Volume	361
Issue number	7
DOIs	https://doi.org/10.1016/j.ica.2007.09.044
State	Published - 20 May 2008

Keywords

Alkaline earth metal complex
Heterogeneous catalytic activity
K[WTe(CN)] · 5HO
Transesterification

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10.1016/j.ica.2007.09.044

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@article{8ca99c40c1b9445da89070599b6b1dd4,

title = "Synthesis, structure, and heterogeneous catalytic activity of tungsten chalcogenide cubane cluster containing alkaline earth metal complex",

abstract = "A new compound containing a cubane tungsten chalcogenide cluster [W4(μ3-Te)4(CN)12]6- and Ca2+ complex units has been prepared by the reaction of aqueous solution of K6[W4(μ3-Te)4(CN)12] · 5H2O with the solution of a Ca(NO3)2 and phen(1,10-phenanthroline) (1:2 molar ratio) in a solvent mixture of H2O/EtOH. The structure of [\{Ca(phen)2(H2O)\}\{Ca(phen)(H2O)4\}\{Ca(phen)2(H2O)3\}][W4Te4(CN)12] · 5H2O 1 has been determined by X-ray crystallography. Compound 1 contains [\{Ca(phen)(H2O)4\}\{Ca(phen)2(H2O)3\}][W4(μ3- Te)4(CN)12] units bridged by \{Ca(phen)2(H2O)\}2+ units to form an one-dimensional zigzag chain structure. Interestingly, compound 1 showed a heterogeneous catalytic activity in the transesterification of a range of esters with methanol under the mild conditions. Moreover, it can be reused without any loss of activity through 10 runs with ester.",

keywords = "Alkaline earth metal complex, Heterogeneous catalytic activity, K[WTe(CN)] · 5HO, Transesterification",

author = "Kwon, \{Ji Young\} and Youngmee Kim and Kim, \{Sung Jin\} and Lee, \{Sun Hwa\} and Han Kwak and Cheal Kim",

year = "2008",

month = may,

day = "20",

doi = "10.1016/j.ica.2007.09.044",

language = "English",

volume = "361",

pages = "1885--1890",

journal = "Inorganica Chimica Acta",

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number = "7",

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TY - JOUR

T1 - Synthesis, structure, and heterogeneous catalytic activity of tungsten chalcogenide cubane cluster containing alkaline earth metal complex

AU - Kwon, Ji Young

AU - Kim, Youngmee

AU - Kim, Sung Jin

AU - Lee, Sun Hwa

AU - Kwak, Han

AU - Kim, Cheal

PY - 2008/5/20

Y1 - 2008/5/20

N2 - A new compound containing a cubane tungsten chalcogenide cluster [W4(μ3-Te)4(CN)12]6- and Ca2+ complex units has been prepared by the reaction of aqueous solution of K6[W4(μ3-Te)4(CN)12] · 5H2O with the solution of a Ca(NO3)2 and phen(1,10-phenanthroline) (1:2 molar ratio) in a solvent mixture of H2O/EtOH. The structure of [{Ca(phen)2(H2O)}{Ca(phen)(H2O)4}{Ca(phen)2(H2O)3}][W4Te4(CN)12] · 5H2O 1 has been determined by X-ray crystallography. Compound 1 contains [{Ca(phen)(H2O)4}{Ca(phen)2(H2O)3}][W4(μ3- Te)4(CN)12] units bridged by {Ca(phen)2(H2O)}2+ units to form an one-dimensional zigzag chain structure. Interestingly, compound 1 showed a heterogeneous catalytic activity in the transesterification of a range of esters with methanol under the mild conditions. Moreover, it can be reused without any loss of activity through 10 runs with ester.

AB - A new compound containing a cubane tungsten chalcogenide cluster [W4(μ3-Te)4(CN)12]6- and Ca2+ complex units has been prepared by the reaction of aqueous solution of K6[W4(μ3-Te)4(CN)12] · 5H2O with the solution of a Ca(NO3)2 and phen(1,10-phenanthroline) (1:2 molar ratio) in a solvent mixture of H2O/EtOH. The structure of [{Ca(phen)2(H2O)}{Ca(phen)(H2O)4}{Ca(phen)2(H2O)3}][W4Te4(CN)12] · 5H2O 1 has been determined by X-ray crystallography. Compound 1 contains [{Ca(phen)(H2O)4}{Ca(phen)2(H2O)3}][W4(μ3- Te)4(CN)12] units bridged by {Ca(phen)2(H2O)}2+ units to form an one-dimensional zigzag chain structure. Interestingly, compound 1 showed a heterogeneous catalytic activity in the transesterification of a range of esters with methanol under the mild conditions. Moreover, it can be reused without any loss of activity through 10 runs with ester.

KW - Alkaline earth metal complex

KW - Heterogeneous catalytic activity

KW - K[WTe(CN)] · 5HO

KW - Transesterification

UR - https://www.scopus.com/pages/publications/41749088706

U2 - 10.1016/j.ica.2007.09.044

DO - 10.1016/j.ica.2007.09.044

M3 - Article

AN - SCOPUS:41749088706

SN - 0020-1693

VL - 361

SP - 1885

EP - 1890

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

IS - 7

ER -

Synthesis, structure, and heterogeneous catalytic activity of tungsten chalcogenide cubane cluster containing alkaline earth metal complex

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