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Self-Assembled p-Carborane Analog of p-Mercaptobenzoic Acid on Au{111}
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SYSNO ASEP 0445983 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Self-Assembled p-Carborane Analog of p-Mercaptobenzoic Acid on Au{111} Author(s) Thomas, J. C. (US)
Boldog, Ishtvan (UACH-T) SAI, RID, ORCID
Auluck, H. S. (US)
Bereciartua, P.J. (ES)
Dušek, Michal (FZU-D) RID, ORCID, SAI
Macháček, Jan (UACH-T) RID, ORCID, SAI
Bastl, Zdeněk (UFCH-W) RID, ORCID
Weiss, P. S. (US)
Baše, Tomáš (UACH-T) RID, SAI, ORCIDSource Title Chemistry of Materials. - : American Chemical Society - ISSN 0897-4756
Roč. 27, č. 15 (2015), s. 5425-5435Number of pages 11 s. Language eng - English Country US - United States Keywords self-assembly ; boron compounds ; carborane ; scanning tunneling microscopy ; crystallography Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GAP205/10/0348 GA ČR - Czech Science Foundation (CSF) GA14-03276S GA ČR - Czech Science Foundation (CSF) LL1301 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support UACH-T - RVO:61388980 ; FZU-D - RVO:68378271 ; UFCH-W - RVO:61388955 UT WOS 000359499100033 EID SCOPUS 84938904576 DOI 10.1021/acs.chemmater.5b02263 Annotation The p-carborane cluster analog of p-mercaptobenzoic acid, 1-HS-12-COOH-1,12-C2B10H10, has been synthesized and characterized using nuclear magnetic resonance spectroscopy, single-crystal X-ray diffraction analysis, quantum- chemical calculations, and scanning tunneling microscopy. The single-crystal structure and selected packing aspects are discussed and presented in comparison with the two-dimensional periodic arrangements. Scanning tunneling micrographs, recorded under ambient conditions, are used to compare pure monolayers of 1-HS-1,12-C2B10H11 to co-adsorbed monolayers of both the parental precursor and carboxyl-functionalized p-carboranethiolate on Au{111}. Monolayers of both constituents are further characterized by X-ray photoelectron spectroscopy, which shows good agreement between the stoichiometry of each pure monolayer and the nominal stoichiometries of the respective molecules. Results indicate that most of the molecules of both derivatives adsorb as thiolates but that a small fraction of each adsorb as thiols, without complete SH bond scission, and consequently are labile relative to desorption. Wetting-angle measurements confirm the hydrophilic character of monolayers containing the carboxylic acid constituents. Mixed self-assembled monolayers with functionalized constituents of high axial symmetry provide a convenient basis for grafting two- and threedimensional structures. Workplace Institute of Inorganic Chemistry Contact Jana Kroneislová, krone@iic.cas.cz, Tel.: 311 236 931 Year of Publishing 2016
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