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Double layer crystallization of heptahelicene on noble metal surfaces
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SYSNO ASEP 0561264 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Double layer crystallization of heptahelicene on noble metal surfaces Author(s) Seibel, J. (CH)
Parschau, M. (CH)
Ernst, Karl-Heinz (FZU-D) ORCIDNumber of authors 3 Source Title Chirality. - : Wiley - ISSN 0899-0042
Roč. 32, č. 7 (2020), s. 975-980Number of pages 6 s. Language eng - English Country US - United States Keywords chiral crystallization ; heptahelicene ; scanning tunneling microscopy ; surface science Subject RIV BM - Solid Matter Physics ; Magnetism OECD category Condensed matter physics (including formerly solid state physics, supercond.) Method of publishing Limited access Institutional support FZU-D - RVO:68378271 UT WOS 000529048200001 EID SCOPUS 85084198522 DOI 10.1002/chir.23235 Annotation Resolution of enantiomers of chiral compounds via crystallization is the dominant method in chemical industry, but chiral recognition at the molecular level during this process is still poorly understood. Using single metal surfaces in ultrahigh vacuum as model system, the enantio-related transition from the monolayer structure into a double layer of the racemic mixture of heptahelicene has been studied with scanning tunneling microscopy. Submolecular resolution reveals enantiopure second layers on Ag(111) and almost enantiopure second layers on Au(111). In analogy to previous results on Cu(111), it is concluded that transition from the 2D first layer racemate into a layered racemate occurs. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2023 Electronic address https://doi.org/10.1002/chir.23235
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