Trimethylsilyl Group Assisted Stimuli Response: Self-Assembly of 1,3,6,8-Tetrakis((trimethysilyl)ethynyl)pyrene
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- 作者：Feng Xu ; Takanori Nishida ; Kenta Shinohara ; Lifen Peng ; Makoto Takezaki ; Takahiro Kamada ; Haruo Akashi ; Hiromu Nakamura ; Kouki Sugiyama ; Kazuchika Ohta ; Akihiro OritaJunzo Otera
- 刊名：Organometallics
- 出版年：2017
- 出版时间：February 13, 2017
- 年：2017
- 卷：36
- 期：3
- 页码：556-563
- 全文大小：530K
- ISSN：1520-6041
文摘
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.