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Kinetic and equilibrium constants of nitrogen coordination to cyclopentadienylmanganese (CpMn) are spectroscopically determined by using the membrane of the copolymer of (vinylmethylcyclopentadienyl)dicarbonylmanganese and octyl methacrylate. Nitrogen transport through the membrane is selectively augmented due to the rapid and reversible coordination of nitrogen to the fixed CpMn. The facilitated nitrogen-transport behavior is in accordance with a dual-mode transport model to give diffusion coefficients of the penetrant.

Ordered, organic monolayers were formed on gold slides by adsorption from ethanol of HS(CH2)10CH2OH, HS(CH2)10CH3, [S(CH2)10CH2OH]2, [S(CH2)10CH3]2, and binary mixtures of these molecules in which one component was terminated by a hydrophobic methyl group and one by a hydrophilic alcohol group. The compositions of the monolayers were determined by X-ray photoelectron spectroscopy (XPS). Wettability was used as a probe of the chemical composition and structure of the surface of the monolayer. When monolayers were formed in solutions containing mixtures of a thiol and a disulfide, adsorption of the thiol was strongly preferred (~75:1). The advancing contact angles of water and hexadecane on monolayers formed from solutions containing mixtures of two thiols, a thiol and a disulfide, or two disulfides were dependent on the proportion of hydroxyl-terminated chains in the monolayer and largely independent of the nature of the precursor species. This observation suggests that both thiols and disulfides give rise to the same chemical species (probably a thiolate) on the surface. This model is supported by the observation by XPS of indistinguishable S(2p) signals from monolayers derived from thiols and disulfides.