% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Han:58664,
author = {Han, B. and Li, Z. and Wandlowski, Th.},
title = {{A}dsorption and {S}elf-assembly of {A}romatic {C}arboxylic
{A}cids on {A}u/electrolyte {I}nterfaces},
journal = {Analytical and bioanalytical chemistry},
volume = {388},
issn = {1618-2642},
address = {Berlin},
publisher = {Springer},
reportid = {PreJuSER-58664},
pages = {121 - 129},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {The adsorption and self-assembly of benzoic acid (BA),
isophthalic acid (IA), and trimesic acid (TMA) on Au(111)
single crystals and on Au(111-25 nm) quasi-single
crystalline film electrodes have been investigated in 0.1 M
HClO4 by combining in situ surface-enhanced infrared
reflection absorption spectroscopy (SEIRAS) and scanning
tunneling microscopy (STM) with cyclic voltammetry. All
three acids are physisorbed on the electrode surface in a
planar orientation at negative charge densities. Excursion
to positive charge densities (or more positive potentials)
causes an orientation change from planar to perpendicular.
Chemisorbed structures are formed through the coordination
of a deprotonated carboxyl group to the positively charged
electrode surface. The three acid molecules assemble in
different ordered patterns, which are controlled by
pi-stacking (BA) or intermolecular hydrogen bonds between
COOH groups (IA, TMA). A detailed analysis of the potential
and time dependencies of the nu(C=O), nus(OCO), and nu(C-OH)
vibration modes shows that the strength of lateral
interactions increases upon chemisorption with an increasing
number of COOH groups in the sequence of BA<IA<TMA. The
vibration bands shift to higher wavenumbers due to
dipole-dipole coupling, Stark tuning, and electron back
donation from the electrode to COO-. In addition, an
"indirect" electron donation to the COOH groups takes place
via the conjugated molecular skeleton superimposed on the
intermolecular hydrogen bonding.},
keywords = {Adsorption / Benzoic Acid: chemistry / Electrochemistry /
Electrolytes: chemistry / Gold: chemistry / Models,
Molecular / Phthalic Acids: chemistry / Surface Properties /
Tricarboxylic Acids: chemistry / Electrolytes (NLM
Chemicals) / Phthalic Acids (NLM Chemicals) / Tricarboxylic
Acids (NLM Chemicals) / isophthalate (NLM Chemicals) /
trimesic acid (NLM Chemicals) / Benzoic Acid (NLM Chemicals)
/ Gold (NLM Chemicals) / J (WoSType)},
cin = {IBN-3 / CNI / JARA-FIT},
ddc = {540},
cid = {I:(DE-Juel1)VDB801 / I:(DE-Juel1)VDB381 /
$I:(DE-82)080009_20140620$},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Biochemical Research Methods / Chemistry, Analytical},
typ = {PUB:(DE-HGF)16},
pubmed = {pmid:17318516},
UT = {WOS:000245292200015},
doi = {10.1007/s00216-007-1166-6},
url = {https://juser.fz-juelich.de/record/58664},
}