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Fragmentation, Recombination, and Homolysis

The observed greater thermal stability of SNAP (49) over SNAC (50) has been investigated by ab initio calculations and DSC and TGA measurements. Results indicate a two-step procedure for decomposition with the enhanced thermal stability of SNAP (49) directly related to the steric interaction in the dimerisation reaction leading to disulfide formation. The methyl groups were found to have no substantial effect on the N—S bond strength. Ab initio calculations have also been used to study the mechanism of decomposition of ACONO2. Results indicated that the most thermo- [Pg.110]


The biologically relevant reactivity of coenzyme B12 is associated with the homolysis of its Co-C bond, as well as with the recombination of the products of homolysis (Figure 8). The remarkable structural similarity between the corrinoid homolysis fragment Co"-cobalamin and the Co "-corrin part of coenzyme B12 contributes to lowering... [Pg.805]


See other pages where Fragmentation, Recombination, and Homolysis is mentioned: [Pg.117]    [Pg.129]    [Pg.99]    [Pg.109]    [Pg.99]    [Pg.109]    [Pg.109]    [Pg.404]    [Pg.416]    [Pg.125]    [Pg.137]    [Pg.117]    [Pg.129]    [Pg.99]    [Pg.109]    [Pg.99]    [Pg.109]    [Pg.109]    [Pg.404]    [Pg.416]    [Pg.125]    [Pg.137]    [Pg.812]    [Pg.811]    [Pg.36]    [Pg.764]    [Pg.55]    [Pg.50]    [Pg.19]    [Pg.273]    [Pg.273]    [Pg.975]    [Pg.979]    [Pg.296]    [Pg.768]    [Pg.742]    [Pg.91]    [Pg.113]    [Pg.109]    [Pg.296]   


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Homolysis

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