Molecularly organized Langmuir-Blodgett films from a ruthenium biphosphine complex
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
20/05/2014
20/05/2014
24/03/2005
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Resumo |
Langmuir-Blodgett (LB) films from a ruthenium complex mer-[RuCl3 (dppb)(4-Mepy)] (dppb = PPh2 (CH2)(4)-PPh2; 4-Mepy = 4-methylpyridine), termed Ru-Pic, display a distinct color, which is different from the coloration exhibited by cast films or chloroform solutions. The solution and cast films are red, while the LB films are green-bluish. The manifestation of the blue color in the LB film finds its explanation in a unique absorption band at 690 nm, which is associated with the oxidation of the phosphine moieties. Fluorescence emission and absorption-reflection infrared spectroscopy measurements revealed the molecular organization in the LB films. In contrast, cast films showed a random distribution of complexes. Surface-enhanced Raman scattering was also used in an attempt to identify the main interactions in Ru-Pic. |
Formato |
4959-4964 |
Identificador |
http://dx.doi.org/10.1021/jp048941b Journal of Physical Chemistry B. Washington: Amer Chemical Soc, v. 109, n. 11, p. 4959-4964, 2005. 1520-6106 http://hdl.handle.net/11449/6794 10.1021/jp048941b WOS:000227734500024 |
Idioma(s) |
eng |
Publicador |
Amer Chemical Soc |
Relação |
Journal of Physical Chemistry B |
Direitos |
closedAccess |
Tipo |
info:eu-repo/semantics/article |