@article {Maechling:1993:0003-7028:167,
	author = "Maechling, C.R. and Kliner, D.A.V. and Klenerman, D.",
	title = "Sum Frequency Spectra in the C-H Stretch Region of Adsorbates on Iron",
	journal = "Applied Spectroscopy",
	volume = "47",
	number = "2",
	year = "1993",
	abstract = "Infrared-visible sum frequency generation (SFG) was used to record vibrational spectra in the C-H stretch region of single monolayer Langmuir-Blodgett films of stearic acid, octadecylamine, and <I>p</I>-octadecyl-phenyl acetic acid on iron oxide, demonstrating the sensitivity of SFG to about 0.1 monolayer. Within our present signal-to-noise limitations, it was not possible to obtain SFG spectra of the aromatic C-H stretch in <I>p</I>-octadecylphenyl acetic acid or the N-H stretch in octadecylamine. Vibrational spectra in the C-H stretch region have also been obtained for chemically adsorbed monolayers of stearic acid and oleic imidazoline on iron oxide; however an undetermined fraction of these spectra result from hydrocarbon contamination. Finally, an SFG spectrum was obtained at a buried interface, that of <I>p</I>-octadecylphenyl acetic acid on iron oxide under water. The potential of SFG as a surface analytical tool is discussed.",
	pages = "167-172",
	url = "http://www.ingentaconnect.com/content/sas/sas/1993/00000047/00000002/art00005",
	doi = "doi:10.1366/0003702934048361",
	keyword = "Surface analysis, Spectroscopic techniques"
}