Home > Publications database > Structure and electrochemical characterization of w-(4'-methyl-biphenyl-4-yl) alkanthiols on Au(111)-(1x1) electrodes > print

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024 7 _ |2 DOI
|a 10.1021/jp0744634
024 7 _ |2 WOS
|a WOS:000251024500037
037 _ _ |a PreJuSER-328
041 _ _ |a eng
082 _ _ |a 540
084 _ _ |2 WoS
|a Chemistry, Physical
084 _ _ |2 WoS
|a Nanoscience & Nanotechnology
084 _ _ |2 WoS
|a Materials Science, Multidisciplinary
100 1 _ |0 P:(DE-HGF)0
|a Aguilar-Sanchez, R.
|b 0
245 _ _ |a Structure and electrochemical characterization of w-(4'-methyl-biphenyl-4-yl) alkanthiols on Au(111)-(1x1) electrodes
260 _ _ |a Washington, DC
|b Soc.
|c 2007
300 _ _ |a 17409-17419
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|2 PUB:(DE-HGF)
|a Journal Article
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|a Journal Article
336 7 _ |2 BibTeX
|a ARTICLE
336 7 _ |2 ORCID
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336 7 _ |2 DRIVER
|a article
440 _ 0 |0 16841
|a Journal of Physical Chemistry C
|v 111
|x 1932-7447
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a 4-Methyl-4'-(n-mercaptoalkyl)biphenyl (CH3-C6H4-C6H4-(CH2)(n)-SH, n = 1-6, BPn) monolayers self-assembled on Au(111)-(1 x 1) electrode surfaces were studied by scanning tunneling microscopy, cyclic voltammetry, and chronoamperometry. Distinct odd-even effects were found for the adlayer structures, the interfacial adlayer capacitances, as well as for the potentials and charges of reductive and oxidative desorption. The potential of zero charge, E-pzc, of BPn-modified gold electrodes was estimated by a controlled immersion technique in hanging meniscus configuration to E-pzc = -(0.30 +/- 0.05) V, rather independent of the length of the alkyl spacer. The reductive desorption of BP3 and BP4 adlayers were quantitatively described by models based on hole nucleation and growth mechanisms, such as the exponential law of one-step hole nucleation (BP3), or hole nucleation according to a.power law (BP3, BP4) in combination with a linear law of growth. No odd-even characteristics were found for the kinetic currents of the Fe(CN)(6)(4-)/Fe(CN)(6)(3-) redox reaction in the presence of BPn's. For the dependence on alkyl chain length, a structure sensitive attenuation parameter beta = (11.5 +/- 1.0) nm(-1) was derived, which is interpreted according to a "through-bond" tunneling mechanism.
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|a Su, G.J.
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|a Homberger, M.
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700 1 _ |0 P:(DE-HGF)0
|a Simon, U.
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|a Wandlowski, Th.
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773 _ _ |0 PERI:(DE-600)2256522-X
|a 10.1021/jp0744634
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856 7 _ |u http://dx.doi.org/10.1021/jp0744634
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