The Reaction of Gases with Irradiated Solids Having a Bilayer Structure

Abstract

The free radicals in irradiated solid amides, fatty acids and similar compounds react rapidly with ambient gases such as O2, NO, SO2, etc. The gas seems able to penetrate the lattice and reach the reaction site. This apparently depends on a particular kind of crystal structure which we term the “bilayer structure.” Some characteristics of these reactions are discussed.

Diffusion Limited Oxygen Quenching of Photo‐Induced Electrochemical Reactions in Sandwich Systems with Molecular Crystals

“…The range of diffusion coefficients in polymer systems [45] is about 10-7 cm2 s -1 and D=1.9·10-7cm 2s-1 for N 2 in Neoprene has been found [46]. Therefore, the estimated diffusion coefficient is reasonable in view of the not polar sma1l molecules that may diffuse preferably along interfaces of the bilayer structure [12]. It is at least an upper limit because of the uncertainty of inserted data.…”

“…Afterwards, one dye 2-chloroanthracene and 9,10-diphenylanthracene [10]. Whereas in crystalline structures like acenaphthylene l-carboxylic acid lattice defects have been shown to yield kinetic anisotropy for the diffusion of NH 3 [11], in solid amides it are the twodimensional interfaces -a "bilayer structure" -that allow for a diffusional motion of oxygen or other gases like NO and S02 [12].…”