✦ LIBER ✦
Vibrational spectroscopy of a silane monolayer at air/solid and liquid/solid interfaces using sum-frequency generation
✍ Scribed by P. Guyot-Sionnest; R. Superfine; J.H. Hunt; Y.R. Shen
- Publisher
- Elsevier Science
- Year
- 1988
- Tongue
- English
- Weight
- 470 KB
- Volume
- 144
- Category
- Article
- ISSN
- 0009-2614
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✦ Synopsis
We present the first application of infrared-visible sum-frequency generation to studies of liquid/solid interfaces. The spectra in the CH stretch region of a saturated monolayer of octadecyltrichlorosilane (OTS) adsorbed at various interfaces bound by a fused silica substrate were measured and compared. In every case, it was found that the OTS molecules were oriented with the alkane chains normal to the surface. The adsorption of OTS on silica from a solution was also monitored in situ in real time.