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Title

Ethane-bridged Zn porphyrins dimers in langmuir-schäfer thin films: Spectroscopic, morphologic, and magneto-optical surface plasmon resonance characterization

AuthorsManera, Maria Grazia; Ferreiro-Vila, Elías ; Cebollada, Alfonso ; García-Martín, José Miguel ; García-Martín, Antonio ; Giancane, G.; Valli, L.; Rella, Roberto
Issue Date2012
PublisherAmerican Chemical Society
CitationJournal of Physical Chemistry C 116(19): 10734-10742 (2012)
AbstractThis work reports on the structural and spectroscopic properties, as well as the gas-sensing performance, of ethane-bridged Zn porphyrin dimers (ZnPP) in Langmuir-Schäfer (LS) thin films toward volatile organic compounds in a magneto-optical surface plasmon resonance (MOSPR) configuration. Structural and spectroscopic properties of ethane-bridged ZnPP thin films deposited onto proper Au/Co/Au magneto-optical substrates were inspected in dry air conditions and after exposure to amine vapors by means of IR spectroscopy, scanning probe microscopy, and MOSPR techniques. The molecular organization of the thin films deposited by the LS technique is investigated. The overall results suggest the presence in all cases of mainly the anti-conformer of the investigated porphyrin dimers. The strong interaction between n-butylamine vapors at high concentration and Zn porphyrin thin layers leads to a great conformational change in the porphyrin structure, which is linked to a change in the optical anisotropy of the realized LS layer. © 2012 American Chemical Society.
Publisher version (URL)http://dx.doi.org/10.1021/jp3019843
URIhttp://hdl.handle.net/10261/56523
DOI10.1021/jp3019843
Identifiersissn: 1932-7447
Appears in Collections:(IMN-CNM) Artículos
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