We have used second harmonic generation to directly observe chemical changes in a lipid monolayer. We observed that pK, of phexadecyl aniline at the air/water interface is 3.6& 0.2 versus 5.3 fO.l in the bulk. This fiftyfold increase in acidity is due to the higher free energy of a charged species a
Probing the proton excess at interfaces by second harmonic generation
β Scribed by Xu-Dong Xiao; Viola Vogel; Y.R. Shen
- Publisher
- Elsevier Science
- Year
- 1989
- Tongue
- English
- Weight
- 416 KB
- Volume
- 163
- Category
- Article
- ISSN
- 0009-2614
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