Trimethylsilyl Group Assisted Stimuli Response: Self-Assembly of 1,3,6,8-Tetrakis((trimethysilyl)ethynyl)pyrene

Feng Xu, Takanori Nishida, Kenta Shinohara, Lifen Peng, Makoto Takezaki, Takahiro Kamada, Haruo Akashi, Hiromu Nakamura, Kouki Sugiyama, Kazuchika Ohta, Akihiro Orita, Junzo Otera

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

Substitution of 1,3,6,8-tetraethynylpyrene with sterically bulky trimethylsilyl groups enabled four modes of molecular packing, two polymorphs (triclinic system (Y-form) and "loose" crystal Colho (OK-form)), a "rigid" liquid crystalline phase Colho (OC-form), and an amorphous phase (OA-form), which emitted fluorescence at different wavelengths under UV light. The four phases could be interconverted by physical stimuli such as heating, grinding by mortar and pestle, and exposing to the vapor of organic solvents.

Original languageEnglish (US)
Pages (from-to)556-563
Number of pages8
JournalOrganometallics
Volume36
Issue number3
DOIs
StatePublished - Feb 13 2017

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pyrenes
grinding
Polymorphism
Mortar
Ultraviolet radiation
stimuli
Organic solvents
Self assembly
self assembly
Substitution reactions
Fluorescence
Vapors
vapors
substitutes
Crystalline materials
Heating
Wavelength
fluorescence
Crystals
heating

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Trimethylsilyl Group Assisted Stimuli Response : Self-Assembly of 1,3,6,8-Tetrakis((trimethysilyl)ethynyl)pyrene. / Xu, Feng; Nishida, Takanori; Shinohara, Kenta; Peng, Lifen; Takezaki, Makoto; Kamada, Takahiro; Akashi, Haruo; Nakamura, Hiromu; Sugiyama, Kouki; Ohta, Kazuchika; Orita, Akihiro; Otera, Junzo.

In: Organometallics, Vol. 36, No. 3, 13.02.2017, p. 556-563.

Research output: Contribution to journalArticle

Xu, F, Nishida, T, Shinohara, K, Peng, L, Takezaki, M, Kamada, T, Akashi, H, Nakamura, H, Sugiyama, K, Ohta, K, Orita, A & Otera, J 2017, 'Trimethylsilyl Group Assisted Stimuli Response: Self-Assembly of 1,3,6,8-Tetrakis((trimethysilyl)ethynyl)pyrene', Organometallics, vol. 36, no. 3, pp. 556-563. https://doi.org/10.1021/acs.organomet.6b00781
Xu, Feng ; Nishida, Takanori ; Shinohara, Kenta ; Peng, Lifen ; Takezaki, Makoto ; Kamada, Takahiro ; Akashi, Haruo ; Nakamura, Hiromu ; Sugiyama, Kouki ; Ohta, Kazuchika ; Orita, Akihiro ; Otera, Junzo. / Trimethylsilyl Group Assisted Stimuli Response : Self-Assembly of 1,3,6,8-Tetrakis((trimethysilyl)ethynyl)pyrene. In: Organometallics. 2017 ; Vol. 36, No. 3. pp. 556-563.
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