The in situ characterization of bacteriochlorophyll c in Langmuir monolayers using polarized UV–vis spectroscopy

Autor:	Michal Czapski, Michał Kotkowiak, Jun Miyake, Alina Dudkowiak
Rok vydání:	2010
Předmět:	chemistry.chemical_compound Dipole Langmuir Ultraviolet visible spectroscopy Chemistry Process Chemistry and Technology General Chemical Engineering Monolayer Analytical chemistry Bacteriochlorophyll Molar absorptivity Surface pressure Refractive index
Zdroj:	Dyes and Pigments. 86:227-232
ISSN:	0143-7208
Popis:	The in situ arrangement of bacteriochlorophyll c in a Langmuir monolayer was characterized. Hansen's optical theory was applied to the three-layer system, air/pigment monolayer/water and the correlation between surface pressure and the orientation angle of the bacteriochlorophyll transition dipole moments was deduced. On the basis of the s- and p-polarized UV–vis reflection–absorption and transmission spectra, respectively, the refraction index and extinction coefficient of the red (Qy) band of both the monomeric and aggregated forms of the pigment were estimated.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f209816f489a0aa2fb46582bd0494669 https://doi.org/10.1016/j.dyepig.2010.01.007 Zobrazit plný text záznamu Full Text from ScienceDirect