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Title: Square Tiling by Square Macrocycles at the Liquid/Solid Interface: Co-crystallisation with One- or Two-Dimensional Order
Authors: Tahara, Kazukuni ×
Gotoda, Jun
Carroll, Calden N
Hirose, Keiji
De Feyter, Steven
Tobe, Yoshito #
Issue Date: 2015
Publisher: VCH Verlagsgesellschaft
Series Title: Chemistry - a European Journal vol:21 issue:18 pages:6806-6816
Abstract: We have systematically investigated the self-assembled monolayers of seven bimolecular mixtures of square-shaped pyridinophanes and cyclophanes bearing alkoxy or alkoxycarbonyl substituents in the presence of the tropylium ion as a marker of pyridinophanes at liquid/graphite interfaces by means of scanning tunnelling microscopy (STM). The purpose of this work was to elucidate the mixing behaviour of these macrocycles highlighting the formation of one- or two-dimensionally ordered square tilings consisting of alternating alignments of different macrocycles as a result of attractive dipole–dipole or hydrogen-bonding interactions; four co-crystals differing in the dimensionality of the ordering of pyridinophane and cyclophane were observed. The different modes of interaction between the functional groups (ether or carbonyl group) in the side-chains of the pyridinophanes and cyclophanes lead to the formation of co-crystals with dimensionally different orderings of the two macrocycles. These observations revealed that a slight modification of the molecular structure may dramatically change the mixing behaviour and structures of the co-crystals.
ISSN: 0947-6539
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Molecular Imaging and Photonics
× corresponding author
# (joint) last author

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