Variable-E_D induced changes in the translucent cloud. Comparison between Models full (solid lines) and noEd (dotted lines) for selected species including those with gas-phase abundances most affected by E_D changes via the H-bond rule: inorganic in a, carbon chains in b, and another organics in c. d shows the growth of the ice mantles on the grains, with thinner lines indicating smaller grains. The changes are caused by a lack of strong H bonding on bare grains in Model full.