Snapshots of Dynamic Adaptation: Two-Dimensional Molecular Architectonics with Linear Bis-Hydroxamic Acid Modules.
atomic force microscopy
host-guest systems
hydroxamic acid
scanning tunneling microscopy
two-dimensional nanostructures
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
19 Dec 2019
19 Dec 2019
Historique:
received:
25
09
2019
pubmed:
2
11
2019
medline:
2
11
2019
entrez:
1
11
2019
Statut:
ppublish
Résumé
Linear modules equipped with two terminal hydroxamic acid groups act as the building block of diverse two-dimensional supramolecular motifs and patterns with room-temperature stability on the close-packed single-crystal surfaces of silver and gold, revealing a complex self-assembly scenario. By combining multiple investigation techniques (scanning tunneling microscopy, atomic force microscopy, X-ray photoelectron spectroscopy, and density functional theory calculations), we analyze the characteristics of the ordered assemblies which range from close-packed structures to polyporous networks featuring an exceptionally extended primitive unit cell with a side length exceeding 7 nm. The polyporous network shows potential for hosting and promoting the formation of chiral supramolecules, whereas a transition from 1D chiral randomness to an ordered racemate is discovered in a different porous phase. We correlate the observed structural changes to the adaptivity of the building block and surface-induced changes in the chemical state of the hydroxamic acid functional group.
Identifiants
pubmed: 31671244
doi: 10.1002/anie.201912247
pmc: PMC6973039
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
18948-18956Subventions
Organisme : Horizon 2020
ID : 664878
Organisme : H2020 European Research Council
ID : 615233
Organisme : Deutsche Forschungsgemeinschaft
ID : 267156538
Organisme : Deutsche Forschungsgemeinschaft
ID : EXC 158
Organisme : Postdoctoral Research Foundation of China
Organisme : China Scholarship Council
Organisme : Max Planck Research School of Advanced Photon Science
Informations de copyright
© 2019 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA.
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