Bond strength, factors affecting

Many properties have an influence on nucleophilicity. Those considered to be most significant are (1) the solvation energy of the nucleophile (2) the strength of the bond being formed to carbon (3) the size of the nucleophile (4) flie electronegativity of the attacking atom and (5) the polarizability of the attacking atom. Let us consider how each of these factors affects nucleophilicity ... 

Dowden (78) has recently discussed the factors affecting the strength of chemisorptive bonds on different types of solids. He has suggested that weak chemisorption, which is often associated with high catalytic activity,... 

Problem 12.12 How do the following factors affect absorption frequencies Use data in Tables 12-1 and 12-2. (a) For C—H stretch, the hybrid orbitals used by C. b) Bond strength i.e., change in bond multiplicity, (c) Change in mass of one of the bonded atoms e.g., O—H versus O—D. (d) Stretching versus bending, (e) H-bonding of OH. <... 

The folding endurance is primarily a measure of the response of fiber-fiber bonds and, to a lesser extent, that of the fibers to alternate compression and tension during the folding. The strength, flexibility, and other physical characteristics of these bonds are profoundly affected by any of the factors associated with aging. As noted above, this may be attributed to the more poorly organized structure and lower crystallinity and, consequently, greater accessibility of the bonds in the paper structure. 

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