Topics - methylene group

methylene group The methylene group can only interact dispersively with other molecules and as the number of methylene groups increase, so the standard energy of distribution increases. Thus, for a given distribution system, the standard energy contribution for each methylene group in a chain is constant. As a consequence, a graph relating the log of the distribution coefficients, the corrected retention volumes or the capacity ratios of an homologous series of solutes, to the number of methylene groups will be a straight line.