✍ Scribed by Miss M. Hoeke; A. L. Koevoet
No coin nor oath required. For personal study only.
On considering the hydrogen bonding of n‐butanol with several ketones it appears that there is a regular increase in the value of the association constant on the introduction of methyl groups. Introduction of a phenyl group into a ketone brings about a decrease in hydrogen bonding. The cyclic ketones have high association constants, presumably due to their convenient structure for hydrogen bonding. An exception is formed by cyclopentanone, in which the sterical effect is counteracted by the larger double bond order of the >CO‐group. With sterically hindered molecules, such as di‐isopropyl ketone and di‐tert.‐butyl ketone there is less hydrogen bonding.
From the results of the experiments no conclusions, as to the existence of a simple relation between K on the one side and the half width v__½ and the frequency‐shift Δ__v on the other, could be drawn.
📜 SIMILAR VOLUMES