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

doi:10.1021/acs.organomet.6b00781

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

Chemistry (Twin Cities)

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

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 Col_ho (O_K-form)), a "rigid" liquid crystalline phase Col_ho (O_C-form), and an amorphous phase (O_A-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 language	English (US)
Pages (from-to)	556-563
Number of pages	8
Journal	Organometallics
Volume	36
Issue number	3
DOIs	https://doi.org/10.1021/acs.organomet.6b00781
State	Published - Feb 13 2017

Bibliographical note

Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers JP16H01164 in Middle Molecular Strategy and JP15K05440, the Okayama Prefecture Industrial Promotion Foundation and Grant for Promotion of OUS Research Projects. AO is grateful to Professor Motohiro Akazome, Chiba University and Professor Hajime Maeda, Kanazawa University for the kind measurement of XRD and the helpful discussion, respectively.

Publisher Copyright:
© 2017 American Chemical Society.

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

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.",

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

note = "Funding Information: This work was supported by JSPS KAKENHI Grant Numbers JP16H01164 in Middle Molecular Strategy and JP15K05440, the Okayama Prefecture Industrial Promotion Foundation and Grant for Promotion of OUS Research Projects. AO is grateful to Professor Motohiro Akazome, Chiba University and Professor Hajime Maeda, Kanazawa University for the kind measurement of XRD and the helpful discussion, respectively. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

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AU - Xu, Feng

AU - Nishida, Takanori

AU - Shinohara, Kenta

AU - Peng, Lifen

AU - Takezaki, Makoto

AU - Kamada, Takahiro

AU - Akashi, Haruo

AU - Nakamura, Hiromu

AU - Sugiyama, Kouki

AU - Ohta, Kazuchika

AU - Orita, Akihiro

AU - Otera, Junzo

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PY - 2017/2/13

Y1 - 2017/2/13

N2 - 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.

AB - 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.

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

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