Počet záznamů: 1
Growth kinetics of racemic heptahelicene-2-carboxylic acid nanowires on calcite (104)
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SYSNO ASEP 0466977 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Growth kinetics of racemic heptahelicene-2-carboxylic acid nanowires on calcite (104) Tvůrce(i) Einax, M. (IL)
Richter, T. (DE)
Nimmrich, M. (DE)
Rahe, P. (DE)
Stará, Irena G. (UOCHB-X) RID, ORCID
Starý, Ivo (UOCHB-X) RID, ORCID
Kühnle, A. (DE)
Maass, P. (DE)Číslo článku 134702 Zdroj.dok. Journal of Chemical Physics. - : AIP Publishing - ISSN 0021-9606
Roč. 145, č. 13 (2016)Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova heptahelicene-2-carboxylic acid nanowires ; nc-AFM ; calcite ; growth kinetics Vědní obor RIV CC - Organická chemie Institucionální podpora UOCHB-X - RVO:61388963 UT WOS 000386156200033 EID SCOPUS 84989874932 DOI https://doi.org/10.1063/1.4963724 Anotace Molecular self-assembly of racemic heptahelicene-2-carboxylic acid on a dielectric substrate at room temperature can be used to generate wire-like organic nanostructures consisting of single and double molecular rows. By means of non-contact atomic force microscopy, we investigate the growth of the wire-like pattern after deposition by experimental and theoretical means. From analyzing the time dependence of the mean row length, two distinct regimes were found. At the early post-deposition stage, the mean length grows in time. Subsequently, a crossover to a second regime is observed, where the mean row length remains nearly constant. We explain these findings by a mean-field rate equation approach providing a comprehensive picture of the growth kinetics. As a result, we demonstrate that the crossover between the two distinct regimes is accomplished by vanishing of the homochiral single rows. At later stages only heterochiral double row structures remain. Pracoviště Ústav organické chemie a biochemie Kontakt asep@uochb.cas.cz ; Kateřina Šperková, Tel.: 232 002 584 ; Jana Procházková, Tel.: 220 183 418 Rok sběru 2017
Počet záznamů: 1