Coventry group

Empirical rules have been elaborated to account for competition between these pathways, depending on electrolysis conditions [180], The Coventry group chose to examine a system almost at balance where both pathways operate [183] in order to best identify any sonoelectrochemical effect on mechanism [184], Table 4 shows product ratios (by glc) from the electrooxidation of partially neutralized cyclohex-anecarboxylate in methanol at platinum, at a current density of 200 mAmp cm-2. The first column shows a substantial amount (49%) of the dimer bicyclohexyl from the one-electron pathway, together with cyclohexylmethylether, cyclohexanol, and other products from the two-electron pathway (totaling -30%). The methyl cyclo-hexanoate ester (17%) is considered to arise from acid-catalyzed chemical esterification of the starting material with methanol solvent, due to the quantity of protons produced around the anode since at the high current densities needed, the parasitic... 

The Coventry group has also examined the behavior ofp-chlorophenyl acetate electrooxidation under ultrasound [187]. This substrate is known to markedly favor the two-electron mechanism [180], showing that the choice of reaction pathway is more dependent on substrate nature than upon manipulation of electrolysis parameters. A further feature of this system is the appreciable yield of p-chlorobenzalde-hyde-derived products. This is shown in Table 6 where it can be seen that sonication produces little change in relative product ratio, although there is an increase in total yield after ether extraction. Thus 46% by weight of mixed product is obtained (unreacted acid is not recovered by this procedure) with ultrasound, but only 23% by weight from the silent reaction. This represents increased reaction efficiency since the same quantity of charge was passed in each case. 

The known effects of ultrasound to enhance diffusion near an electrode and to minimize electrode fouling by preventing buildup of coatings on the electrode surface prompted the Coventry group to examine this ECL system under ultrasonic irradiation [209,210]. Here ECL originates from the excited state of Ru (bpy)j+, which can be attained by three main routes ... 

Inorganic Computational Chemistry Group, Department of Chemistry, University of Warwick, Coventry CV4 7AL, United Kingdom... 

The contents of this book represent the views of the contributing authors and are not necessarily those of the co-editors. However, the adoption of the UK rather than US spelling of certain words in the main text, such as odour and fibre , is the editors fault Finally, we provide below a group photograph of the participants at the NATO Advanced Research Workshop held in Coventry, UK. 

Refusal by an individual to conform to group standards of thought or behaviour can result in pressure to do so or isolation — being sent to Coventry. Between groups, demarcation of jobs, pay scale and differentials and the threat of redundancy with the competition for diminishing job opportunities are fruitful sources of inter-group conflicts. 

Before work began the area was cordoned off using a pedestrian barrier. It was stripped of the existing hardcore to expose the sub-giade, which was hard clay, similar to that in the rest of the site. The sub-grade was tiimmed to level, compacted and inspected by all parties (the contractor, WRAP and the technical group from Coventry University). 

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