6533b853fe1ef96bd12ad41a

RESEARCH PRODUCT

Langmuir−Blodgett Films of a Mo-Blue Nanoring [Mo142O429H10(H2O)49(CH3CO2)5(CH3CH2CO2)]30- (Mo142) by the Semiamphiphilic Method

Miguel Clemente-leónToshihiro YamaseEugenio CoronadoTakeru ItoHisashi Yashiro

subject

LangmuirStereochemistryBilayerSurfaces and InterfacesCondensed Matter PhysicsLangmuir–Blodgett filmchemistry.chemical_compoundCrystallographychemistryMonolayerSaturated fatty acidElectrochemistryGeneral Materials ScienceLamellar structureBehenic acidSpectroscopyNanoring

description

Langmuir monolayers and LB films of the ring-shaped mixed-valence polyoxomolybdate [Mo142O429H10(H2O)49(CH3CO2)5(CH3CH2CO2)]30- (Mo142) dissolved in the aqueous subphase have been successfully fabricated by using the adsorption properties of a DODA monolayer. Infrared and ultraviolet−visible spectroscopy of the LB films indicates that Mo142 and DODA molecules are incorporated within these LB films. X-ray reflectivity experiments indicate that the LB films exhibit a well-defined lamellar structure formed by bilayers of DODA molecules alternating with monolayers of Mo142. Using behenic acid-modified hydrophobic quartz substrate is critical for the formation of the well-defined lamellar structure. From the values of the periodicity obtained by these experiments it is clear that the Mo142 clusters lie flat along the charged organic layers. AFM images also showed the flat and homogeneous films on the quartz substrates treated with behenic acid. Cyclic voltammograms of Mo142-LB films deposited on ITO substrates...

yearjournalcountryeditionlanguage
2007-02-22Langmuir
https://doi.org/10.1021/la0635146