Immobilized Rh, Ru, Pd and Ni complexes as catalysts in the hydrogenation of cyclohexene

Cagnola, Edgardo; Quiroga, Mónica; Liprandi, Domingo; L’Argentière, Pablo C.

doi:10.1016/j.apcata.2004.07.001

Cited by 22 publications

(22 citation statements)

References 24 publications

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“…The possibility of diffusional limitations was investigated following procedures previously reported. 6 Neither external nor intraparticle diffusional limitations were observed. Samples were analyzed using a FID GC and a 30 m J&W INNOWax 19091N-213 (cross-linked polyethylene glycol phase) capillary column.…”

Section: Catalytic Evaluationmentioning

confidence: 99%

“…The BE corresponding to Pd and Rh 3d 5/2 , N 1s, Cl 2p and S 2p and atomic ratios were determined for pure and anchored complexes following experimental procedures previously detailed elsewhere. 6 FTIR spectra of TDA and the pure complexes were obtained in the range 4100-900 cm -1 using a Shimadzu 8101/8101M equipment. Further experimental details can be found elsewhere.…”

Section: Characterizationmentioning

confidence: 99%

“…These complexes have proved to be more active, selective, and likewise more resistant to poisoning agents than the traditional metallic catalysts. 5,6 Another advantage is that they can be used at milder reaction conditions. In previous publications of our group different types of metal complexes with different ligands were synthesized and they were found to be active, selective and sulfur resistant in the reaction of selective hydrogenation of double and triple bonds.…”

Section: Introductionmentioning

confidence: 99%

“…In previous publications of our group different types of metal complexes with different ligands were synthesized and they were found to be active, selective and sulfur resistant in the reaction of selective hydrogenation of double and triple bonds. [6][7][8] The objectives of this work are: evaluate the catalytic activity of a palladium and a rhodium complex as low loaded heterogeneous catalysts without any pre-treatment for the selective hydrogenation of styrene to ethylbenzene; study the resistance of these complexes to tetrahydrothiophene (THT) poisoning.…”

Section: Introductionmentioning

confidence: 99%

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Activity and sulfur resistance of Rh(I) and Pd(II) complexes

Rivas¹,

Badano²,

Lederhos³

et al. 2011

Quím. Nova

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Recebido em 5/3/10; aceito em 4/8/10; publicado na web em 16/11/10 Two complexes of Rh(I) and Pd(II) with chloride and tridecylamine ligands were obtained and characterized by Elementary Analysis and by XPS and FTIR spectroscopies. Complexes anchored on g-Al 2 O 3 were tested in the styrene semi-hydrogenation reaction carried out in the absence or presence of a sulfur poison. Although both low loaded catalysts were highly selective, the Pd(II) complex was three times more active than the Rh(I) complex. The rhodium complex was more sulfur resistant but less active than the palladium complex. Differences in conversion and sulfur resistance between both complexes could be related to electronic and/or geometric effects.

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Section: Catalytic Evaluationmentioning

confidence: 99%

Section: Characterizationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Activity and sulfur resistance of Rh(I) and Pd(II) complexes

Rivas¹,

Badano²,

Lederhos³

et al. 2011

Quím. Nova

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“…These coordination compounds, used as catalysts, have gained increasing importance for such reactions [22][23][24][25][26][27][28] because they allow getting higher activities and selectivities, even under mild conditions of temperature and pressure [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Terminal and Non Terminal Alkynes Partial Hydrogenation Catalyzed by Some d8 Transition Metal Complexes in Homogeneous and Heterogeneous Systems

Liprandi¹,

Cagnola²,

Lederhos³

et al. 2012

Hydrogenation

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Ruthenium‐p‐cymene Complex Side‐Wall Covalently Bonded to Carbon Nanotubes as Efficient Hybrid Transfer Hydrogenation Catalyst

et al. 2021

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A half‐sandwich ruthenium‐p‐cymene organometallic complex has been immobilized at Single Walled Carbon Nanotubes (SWNT) sidewalls through a stepwise covalent chemistry protocol. The introduction of amino groups by means of diazonium‐chemistry protocols leads the grafting at the outer walls of the nanotubes. This hybrid material is active in the transfer hydrogenation of ketones to yield alcohols, using as hydrogen source 2‐propanol. SWNT−NH2−Ru presents a broad scope, performing the reaction under aerobic conditions and can be recycled over 9 consecutive reaction runs without losing activity or leaching ruthenium out. Comparison of the activity with related homogeneous catalysts reveals an improved performance due to the covalent bond between the metal and the material, achieving turnover frequencies as high as 192774 h−1.

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Immobilized Rh, Ru, Pd and Ni complexes as catalysts in the hydrogenation of cyclohexene

Cited by 22 publications

References 24 publications

Activity and sulfur resistance of Rh(I) and Pd(II) complexes

Activity and sulfur resistance of Rh(I) and Pd(II) complexes

Terminal and Non Terminal Alkynes Partial Hydrogenation Catalyzed by Some d8 Transition Metal Complexes in Homogeneous and Heterogeneous Systems

Ruthenium‐p‐cymene Complex Side‐Wall Covalently Bonded to Carbon Nanotubes as Efficient Hybrid Transfer Hydrogenation Catalyst

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