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Imaging on-surface hierarchical assembly of chiral supramolecular networks
- Source :
- Physical Chemistry Chemical Physics, PCCP. Physical chemistry chemical physics, 19 (2017): 24605–24612. doi:10.1039/c7cp01341h, info:cnr-pdr/source/autori:Patera L.L.; Zou Z.; Dri C.; Africh C.; Repp J.; Comelli G./titolo:Imaging on-surface hierarchical assembly of chiral supramolecular networks/doi:10.1039%2Fc7cp01341h/rivista:PCCP. Physical chemistry chemical physics (Print)/anno:2017/pagina_da:24605/pagina_a:24612/intervallo_pagine:24605–24612/volume:19
- Publication Year :
- 2017
- Publisher :
- Universität Regensburg, 2017.
-
Abstract
- The bottom-up assembly of chiral structures usually relies on a cascade of molecular recognition interactions. A thorough description of these complex stereochemical mechanisms requires the capability of imaging multilevel coordination in real-time. Here we report the first direct observation of hierarchical expression of supramolecular chirality at work, for 10,10′-dibromo-9,9′-bianthryl (DBBA) on Cu(111). Molecular recognition first steers the growth of chiral organometallic chains and then leads to the formation of enantiopure islands. The structure of the networks was determined by noncontact atomic force microscopy (nc-AFM), while high-speed scanning tunnelling microscopy (STM) revealed details of the assembly mechanisms at the ms time-scale. The direct observation of the chirality transfer pathways allowed us to evaluate the enantioselectivity of the interchain coupling.
- Subjects :
- Surface (mathematics)
Supramolecular chirality
ddc:540
Chiral Structures
STM
non contact AFM
hierarchical assembly
Supramolecular chemistry
General Physics and Astronomy
Nanotechnology
02 engineering and technology
010402 general chemistry
01 natural sciences
Molecular recognition
Microscopy
Physical and Theoretical Chemistry
Quantum tunnelling
Chemistry
ddc:530
Chiral Structure
021001 nanoscience & nanotechnology
530 Physik
0104 chemical sciences
Enantiopure drug
540 Chemie
0210 nano-technology
Chirality (chemistry)
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Physical Chemistry Chemical Physics, PCCP. Physical chemistry chemical physics, 19 (2017): 24605–24612. doi:10.1039/c7cp01341h, info:cnr-pdr/source/autori:Patera L.L.; Zou Z.; Dri C.; Africh C.; Repp J.; Comelli G./titolo:Imaging on-surface hierarchical assembly of chiral supramolecular networks/doi:10.1039%2Fc7cp01341h/rivista:PCCP. Physical chemistry chemical physics (Print)/anno:2017/pagina_da:24605/pagina_a:24612/intervallo_pagine:24605–24612/volume:19
- Accession number :
- edsair.doi.dedup.....c3f1ce9ee0e53a5d829743a41d1a943d
- Full Text :
- https://doi.org/10.5283/epub.36122