✍ Scribed by W.J. le Noble; Bjarne Gabrielsen
No coin nor oath required. For personal study only.
In two earlier publications2 we discussed activation volumes of a number of solvolysis reactions considered by many chemists to proceed at enhanced rates because of neighboring group participation.
This activation parameter, the value of which is typically3 of the order of -15 --20 cm3/mole for solvolysis, was observed to be somewhat less negative in cases characterized by u-participation, and somewhat more negative in cases involving n-participation. Although these effects are in agreement with both empirical and theoretical expectations, they are small, not capable of very precise measurement,
📜 SIMILAR VOLUMES
The enzymic degradation of heparitin sulfate (l), chondroitin sulfates (2), hyaluronic acid (3) led to sulfated or sulfate free oligosaccharides with a terminally linked 4,5-unsaturated-4-deoxy-hexopyranosiduronate unit. These oligosaccharides proved to be similar to the fragmentation-products of lu
The equilibrium yields of three, high-pressure., gas-phase reactions were calculated using the virial equation of state, the modified equation of Redlich, and the Lewis fugacity rule. The results obtained do not differ very much from one another. However, when the calculations are performed for the