Free-Standing Monolayer Two-Dimensional Supramolecular Organic Framework with Good Internal Order
Pfeffermann M, Dong R, Graf R, Zajaczkowski W, Gorelik T, Pisula W, Narita A, Muellen K, Feng X (2015)
Publication Type: Journal article
Publication year: 2015
Journal
Book Volume: 137
Pages Range: 14525-14532
Journal Issue: 45
DOI: 10.1021/jacs.5b09638
Abstract
Utilizing dynamic self-assembly and self-sorting to obtain large-area, molecularly precise monolayered structures represents a promising approach toward two-dimensional supramolecular organic frameworks (2D SOF) or 2D supramolecular polymers. So far, related approaches suffer from small domain sizes, fragility and weak long-range internal order. Here we report on the self-assembly of a host-guest enhanced donor-acceptor interaction, consisting of a tris(methoxynaphthyl)-substituted truxene spacer, and a naphthalene diimide substituted with N-methyl viologenyl moieties as donor and acceptor monomers, respectively, in combination with cucurbit[8]uril as host monomer toward monolayers of an unprecedented 2D SOF. Featuring orthogonal solubility, the participating molecules self-assemble at a liquid-liquid interface, yielding exceptionally large-area, insoluble films, which were analyzed by transmission electron microscopy, atomic force microscopy and optical microscopy to be monolayers with a thickness of 1.8 nm, homogeneously covering areas up to 0.25 cm2, and featuring the ability to be free-standing over holes of 10 μm2. Characterization with ultraviolet-visible absorption spectroscopy, solid-state nuclear magnetic resonance spectroscopy, infrared spectroscopy, and grazing incidence wide-angle X-ray scattering allowed for confirmation of a successful complexation of all three monomers toward an internal long-range order and gave indications to an expected hexagonal superstructure. Our results extend the existing variety of two-dimensional soft nanomaterials by a versatile supramolecular approach, whereas the possibility of varying the functional monomers is supposed to open adaptability to different applications like membranes, sensors, molecular sieves, and optoelectronics.
Involved external institutions
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
Technische Universität Dresden
Germany (DE)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Germany (DE)
Technische Universität Dresden
Germany (DE)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
How to cite
APA:
Pfeffermann, M., Dong, R., Graf, R., Zajaczkowski, W., Gorelik, T., Pisula, W.,... Feng, X. (2015). Free-Standing Monolayer Two-Dimensional Supramolecular Organic Framework with Good Internal Order. Journal of the American Chemical Society, 137(45), 14525-14532. https://doi.org/10.1021/jacs.5b09638
MLA:
Pfeffermann, Martin, et al. "Free-Standing Monolayer Two-Dimensional Supramolecular Organic Framework with Good Internal Order." Journal of the American Chemical Society 137.45 (2015): 14525-14532.
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