Chlorinated ethenes at Cu(110): adsorption, dissociation and reactions of trans-1,2-dichloroethene

Haq, S.; Laroze, S.C.; Mitchell, Charlotte; Winterton, N.; Raval, Rasmita

doi:10.1016/s0039-6028(03)00441-2

Cited by 12 publications

(9 citation statements)

References 39 publications

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“…Benzene formation also occurs upon heating of chlorinated C 2 H 2 compounds on Cu(110). − This reaction proceeds via initial dissociation of C–Cl bonds followed by cyclotrimerization of the resulting C 2 H 2 species, with the rate of cyclotrimerization limited by desorption. Cyclotrimerization was also observed for larger hydrocarbons at the Cu(110) surface …”

Section: Introductionmentioning

confidence: 99%

Adsorption and Cyclotrimerization Kinetics of C₂H₂ at a Cu(110) Surface

et al. 2012

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The kinetics of acetylene adsorption and cyclotrimerization was studied by vibrational sum-frequency generation spectroscopy (SFG) and density functional theory (DFT) calculations. At low temperature, SFG shows two resonances corresponding to acetylene adsorbed in two different sites. Upon heating, two new vibrational resonances appear. We interpret these resonances as being due to C 2 H 2 island formation and adsorbed C 4 H 4 , which is the intermediate in the subsequent cyclotrimerization reaction to form benzene. A kinetic model is applied, which allows determination of the relevant activation barriers. The barrier for C 2 H 2 diffusion is determined to be 43 ± 1 kJ/mol. The activation barrier for formation of the C 4 H 4 intermediate is found to be 84 ± 6 kJ/mol and the barrier for benzene formation 5 ± 3 kJ/mol lower. Barriers to diffusion and formation of C 4 H 4 and C 6 H 6 obtained from DFT calculations are in quantitative agreement with the experiments once the locally high coverage in C 2 H 2 islands is included.

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Section: Introductionmentioning

confidence: 99%

Adsorption and Cyclotrimerization Kinetics of C₂H₂ at a Cu(110) Surface

et al. 2012

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“…The lack of reliable kinetic data prevents the use of these reactions in view of industrial goals. A number of recent papers have reported the reaction of copper with organic halides 1–5. The reaction mechanisms were studied in detail 4,5.…”

Section: Introductionmentioning

confidence: 99%

Kinetics of reaction of copper with substituted benzyl chlorides in dipolar aprotic solvents

Егоров

Matyukhova

Анисимов

2007

Int J of Chemical Kinetics

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The reaction of copper with benzyl chlorides in dipolar aprotic solvents has been investigated. The kinetic and thermodynamic parameters of the reaction of copper with benzyl chloride in dimethyl sulfoxide, dimethylacetamide, and hexamethylphosphoramide have been obtained. Hammett plots of log (k/k • ) versus the substituent constant σ gave good correlation. The structure of the organic group has little effect on the rate of reaction of benzyl chloride with copper. The kinetic and thermodynamic parameters were correlated with donor number of solvent (DN SbCl 5 ). The ratio k RBr /k RCl and Hammett ρ values provide evidence in favor of the halogen atom transfer mechanism.

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“…10 Acetylene formation has also been observed from cis-and trans-DCE on Pt(111), Pt(110)(1 × 2), Cu(100), and Cu(110). 9,[11][12][13][14][15] Other studies in this laboratory include cis-and trans-DCE on Pd(111). 16,17 This article presents results of gem-dichloroethene (g-DCE) decomposition on single-crystal Pd(111) under UHV conditions.…”

Section: Introductionmentioning

confidence: 99%

Decomposition of 1,1-Dichloroethene on Pd(111)

et al. 2005

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The decomposition of 1,1-dichloroethene on Pd(111) is investigated using conventional thermal desorption, laser-induced thermal desorption (LITD), and FT reflection absorption infrared spectroscopy (FT-RAIRS). The decomposition mechanism produces at least three hydrocarbon surface intermediates, including ethylidyne. Thermal desorption results differ between high and low coverages because of relative surface concentrations of Cl and H in combination with kinetic effects.

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Chlorinated ethenes at Cu(110): adsorption, dissociation and reactions of trans-1,2-dichloroethene

Cited by 12 publications

References 39 publications

Adsorption and Cyclotrimerization Kinetics of C₂H₂ at a Cu(110) Surface

Adsorption and Cyclotrimerization Kinetics of C₂H₂ at a Cu(110) Surface

Kinetics of reaction of copper with substituted benzyl chlorides in dipolar aprotic solvents

Decomposition of 1,1-Dichloroethene on Pd(111)

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Chlorinated ethenes at Cu(110): adsorption, dissociation and reactions of trans-1,2-dichloroethene

Cited by 12 publications

References 39 publications

Adsorption and Cyclotrimerization Kinetics of C2H2 at a Cu(110) Surface

Adsorption and Cyclotrimerization Kinetics of C2H2 at a Cu(110) Surface

Kinetics of reaction of copper with substituted benzyl chlorides in dipolar aprotic solvents

Decomposition of 1,1-Dichloroethene on Pd(111)

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Adsorption and Cyclotrimerization Kinetics of C₂H₂ at a Cu(110) Surface

Adsorption and Cyclotrimerization Kinetics of C₂H₂ at a Cu(110) Surface