Sol-gel entrapped lipophilic and hydrophilic ruthenium-, rhodium-, and iridium-phosphine complexes as recyclable isomerization catalysts

Hanan Sertchook; David Avnir; Jochanan Blum; Ferenc Joó; Ágnes Kathó; Herbert Schumann; Roman Weimann; Sonja Wernik

doi:10.1016/1381-1169(95)00301-0

Sol-gel entrapped lipophilic and hydrophilic ruthenium-, rhodium-, and iridium-phosphine complexes as recyclable isomerization catalysts

Hanan Sertchook
, David Avnir^*
, Jochanan Blum
, Ferenc Joó
, Ágnes Kathó
, Herbert Schumann
, Roman Weimann
, Sonja Wernik

^*Corresponding author for this work

Institute of Chemistry

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

41 Scopus citations

Abstract

The phosphinated complexes RuCl₂(PPh₃)₃, 1, RhCl(PPh₃)₃, 2, IrCl(CO)(PPh₃)₂, 3, their water soluble sulfonated analogs RuCl₂[Ph₂P(3-C₆H₄SO ₃Na)]₂ · 4H₂O, 4, RhCl[Ph₂P(3-C₆H₄SO₃Na)]₃ · 4H₂O, 5, IrCl(CO)[Ph₂P(3-C₆H₄SO₃Na)] ₂, 6, as well as the dirhodium compounds trans-[Rh(CO)(PPh₃)(μ-pz)]₂, 7, and trans-[Rh(CO)(PPh₃)(μ-Cl)]₂, 9 were entrapped physically in SiO₂ sol-gel matrices. Replacement of the PPh₃ ligands in the two latter complexes by Ph₂P(CH₂)₂Si(OEt)₃ groups enabled to bind of the dirhodium complexes chemically to the matrix backbone via the silyloxy functions. The activity of the immobilized complexes as allylbenzene isomerization catalysts was studied and compared. Entrapped complex 4 was found to be the most efficient catalyst.

Original language	English
Pages (from-to)	153-160
Number of pages	8
Journal	Journal of Molecular Catalysis A: Chemical
Volume	108
Issue number	3
DOIs	https://doi.org/10.1016/1381-1169(95)00301-0
State	Published - 1996

Keywords

Indium
Isomerization
Rhodium
Ruthenium
Sol-gel

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10.1016/1381-1169(95)00301-0

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title = "Sol-gel entrapped lipophilic and hydrophilic ruthenium-, rhodium-, and iridium-phosphine complexes as recyclable isomerization catalysts",

abstract = "The phosphinated complexes RuCl2(PPh3)3, 1, RhCl(PPh3)3, 2, IrCl(CO)(PPh3)2, 3, their water soluble sulfonated analogs RuCl2[Ph2P(3-C6H4SO 3Na)]2 · 4H2O, 4, RhCl[Ph2P(3-C6H4SO3Na)]3 · 4H2O, 5, IrCl(CO)[Ph2P(3-C6H4SO3Na)] 2, 6, as well as the dirhodium compounds trans-[Rh(CO)(PPh3)(μ-pz)]2, 7, and trans-[Rh(CO)(PPh3)(μ-Cl)]2, 9 were entrapped physically in SiO2 sol-gel matrices. Replacement of the PPh3 ligands in the two latter complexes by Ph2P(CH2)2Si(OEt)3 groups enabled to bind of the dirhodium complexes chemically to the matrix backbone via the silyloxy functions. The activity of the immobilized complexes as allylbenzene isomerization catalysts was studied and compared. Entrapped complex 4 was found to be the most efficient catalyst.",

keywords = "Indium, Isomerization, Rhodium, Ruthenium, Sol-gel",

author = "Hanan Sertchook and David Avnir and Jochanan Blum and Ferenc Jo{\'o} and {\'A}gnes Kath{\'o} and Herbert Schumann and Roman Weimann and Sonja Wernik",

year = "1996",

doi = "10.1016/1381-1169(95)00301-0",

language = "אנגלית",

volume = "108",

pages = "153--160",

journal = "Journal of Molecular Catalysis A: Chemical",

issn = "1381-1169",

publisher = "Elsevier B.V.",

number = "3",

}

TY - JOUR

T1 - Sol-gel entrapped lipophilic and hydrophilic ruthenium-, rhodium-, and iridium-phosphine complexes as recyclable isomerization catalysts

AU - Sertchook, Hanan

AU - Avnir, David

AU - Blum, Jochanan

AU - Joó, Ferenc

AU - Kathó, Ágnes

AU - Schumann, Herbert

AU - Weimann, Roman

AU - Wernik, Sonja

PY - 1996

Y1 - 1996

N2 - The phosphinated complexes RuCl2(PPh3)3, 1, RhCl(PPh3)3, 2, IrCl(CO)(PPh3)2, 3, their water soluble sulfonated analogs RuCl2[Ph2P(3-C6H4SO 3Na)]2 · 4H2O, 4, RhCl[Ph2P(3-C6H4SO3Na)]3 · 4H2O, 5, IrCl(CO)[Ph2P(3-C6H4SO3Na)] 2, 6, as well as the dirhodium compounds trans-[Rh(CO)(PPh3)(μ-pz)]2, 7, and trans-[Rh(CO)(PPh3)(μ-Cl)]2, 9 were entrapped physically in SiO2 sol-gel matrices. Replacement of the PPh3 ligands in the two latter complexes by Ph2P(CH2)2Si(OEt)3 groups enabled to bind of the dirhodium complexes chemically to the matrix backbone via the silyloxy functions. The activity of the immobilized complexes as allylbenzene isomerization catalysts was studied and compared. Entrapped complex 4 was found to be the most efficient catalyst.

AB - The phosphinated complexes RuCl2(PPh3)3, 1, RhCl(PPh3)3, 2, IrCl(CO)(PPh3)2, 3, their water soluble sulfonated analogs RuCl2[Ph2P(3-C6H4SO 3Na)]2 · 4H2O, 4, RhCl[Ph2P(3-C6H4SO3Na)]3 · 4H2O, 5, IrCl(CO)[Ph2P(3-C6H4SO3Na)] 2, 6, as well as the dirhodium compounds trans-[Rh(CO)(PPh3)(μ-pz)]2, 7, and trans-[Rh(CO)(PPh3)(μ-Cl)]2, 9 were entrapped physically in SiO2 sol-gel matrices. Replacement of the PPh3 ligands in the two latter complexes by Ph2P(CH2)2Si(OEt)3 groups enabled to bind of the dirhodium complexes chemically to the matrix backbone via the silyloxy functions. The activity of the immobilized complexes as allylbenzene isomerization catalysts was studied and compared. Entrapped complex 4 was found to be the most efficient catalyst.

KW - Indium

KW - Isomerization

KW - Rhodium

KW - Ruthenium

KW - Sol-gel

UR - https://www.scopus.com/pages/publications/10644239264

U2 - 10.1016/1381-1169(95)00301-0

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SN - 1381-1169

VL - 108

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JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

IS - 3

ER -

Sol-gel entrapped lipophilic and hydrophilic ruthenium-, rhodium-, and iridium-phosphine complexes as recyclable isomerization catalysts

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