Chassaing

Reproducedfrom [78], D. Bizot, J. Chassaing, A. Erb, J. Less-Common Metals 79 (1981) 39, Copyright 1981, with permission of Elsevier. 

H/D exchange of H and Hg protons of sulfone 86 and estimated the difference in the free energies of activation for 79a and 79b to be < 1.2 kcal mol , based on the kjk value of 3 0.5. In the base-catalyzed H/D exchange of 87, kjk = 1.6, where k and k are the rate constants of H/D exchange of H, and H, respectively. Based on the small kjk value. Brown and colleagues suggested that if the carbanion is pyramidal, the steric stabilities of 79a and 79b are almost identical. Meanwhile, based on their C-NMR study Chassaing and Marquet proposed that the hybridization of the carbon atom of the sulfonyl carbanion, PhSOjCHj , would be between sp and sp . 

Girault, S. Chassaing, G. Blais, J. C. Brunot, A. Bolbach, G. Coupling of MALDI-TOF mass analysis to the separation of biotinylated peptides by magnetic strepta-vidin beads. Anal. Chem. 1996, 68, 2122-2126. 

Derossi D, Chassaing G, Prochiantz A. Trojan peptides the penetratin system for intracellular delivery. Trends Cell Biol 1998 8 84-87. 

A. Alix, S. Chassaing, P. Pale, and J. Sommer, Click chemistry in Cu -zeolites A convenient access to glycoconjugates, Tetrahedron, 64 (2008) 8922-8929. 

The incorporation of a third element, e.g. Cu, in electroless Ni-P coatings has been shown to improve thermal stability and other properties of these coatings [99]. Chassaing et al. [100] carried out an electrochemical study of electroless deposition of Ni-Cu-P alloys (55-65 wt% Ni, 25-35 wt% Cu, 7-10 wt% P). As mentioned earlier, pure Cu surfaces do not catalyze the oxidation of hypophosphite. They observed interactions between the anodic and cathodic processes both reactions exhibited faster kinetics in the full electroless solutions than their respective half cell environments (mixed potential theory model is apparently inapplicable). The mechanism responsible for this enhancement has not been established, however. It is possible that an adsorbed species related to hypophosphite mediates electron transfer between the surface and Ni2+ and Cu2+, rather in the manner that halide ions facilitate electron transfer in other systems, e.g., as has been recently demonstrated in the case of In electrodeposition from solutions containing Cl [101]. 

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