Direct 129Xe-NMR spectroscopy evidence of a mesogenic dendrimer with free void space

Direct 129Xe-NMR spectroscopy evidence of a mesogenic dendrimer with free void space

A dendrimer with three-fold symmetry and piperazinoamido moieties was prepared in ∼35% yield. This molecule was observed to exhibit columnar phases on thermal treatment and have free void space in the mesogenic and solid states based on a 129Xe-NMR study. The piperazinoamido moiety was indicated in...

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Veröffentlicht in:Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2023-03, Vol.11 (11), p.3710-3714
Hauptverfasser: Yao-Chih Lu, Anedda, Roberto, Chen, Hsiu-Hui, Hui-Chu, Hsu, Shun-Ju Hsu, Ratcliffe, Christopher, Long-Li, Lai, Ripmeester, John, Hsu, Hsiu-Fu
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Sprache:eng
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Heat treatment
NMR spectroscopy
Self-assembly
Xenon 129
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container_end_page 3714
container_issue 11
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container_title Journal of materials chemistry. C, Materials for optical and electronic devices
container_volume 11
creator Yao-Chih Lu
Anedda, Roberto
Chen, Hsiu-Hui
Hui-Chu, Hsu
Shun-Ju Hsu
Ratcliffe, Christopher
Long-Li, Lai
Ripmeester, John
Hsu, Hsiu-Fu
description A dendrimer with three-fold symmetry and piperazinoamido moieties was prepared in ∼35% yield. This molecule was observed to exhibit columnar phases on thermal treatment and have free void space in the mesogenic and solid states based on a 129Xe-NMR study. The piperazinoamido moiety was indicated in a theoretical calculation to cause the dendritic framework to become twisted between the central core and periphery—thus resulting in the dendrimer forming a free void space inside the framework after having self-assembled into columnar stacks.
doi_str_mv 10.1039/d3tc00486d
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source Royal Society Of Chemistry Journals 2008-
subjects Heat treatment
NMR spectroscopy
Self-assembly
Xenon 129
title Direct 129Xe-NMR spectroscopy evidence of a mesogenic dendrimer with free void space
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