Chiral Silica with Preferred-Handed Helical Structure via Chiral Transfer

A strategy to obtain chiral silica using an achiral stereoregular polymer with polyhedral oligomeric silsesquioxane (POSS) side chains is described herein. The preferred helical conformation of the POSS-containing polymer could be achieved by mixing isotactic polymethacrylate-functionalized POSS ( i...

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Bibliographic Details
Published in:JACS Au 2021-04, Vol.1 (4), p.375-379
Main Authors: Manabe, Kei, Tsai, Sung-Yu, Kuretani, Satoshi, Kometani, Satoshi, Ando, Katsuyuki, Agata, Yoshihiro, Ohta, Noboru, Chiang, Yeo-Wan, Lin, I-Ming, Fujii, Syuji, Nakamura, Yoshinobu, Chang, Yu-Ning, Nabae, Yuta, Hayakawa, Teruaki, Wang, Chien-Lung, Li, Ming-Chia, Hirai, Tomoyasu
Format: Article
Language:English
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Letter
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Summary:A strategy to obtain chiral silica using an achiral stereoregular polymer with polyhedral oligomeric silsesquioxane (POSS) side chains is described herein. The preferred helical conformation of the POSS-containing polymer could be achieved by mixing isotactic polymethacrylate-functionalized POSS ( it -PMAPOSS) and a chiral dopant. The array structure of POSS molecules, which are placed along the helical conformation, is memorized even after removing the chiral dopant at high temperatures, leading to a chiral silica compound with exclusive optical activity after calcination.
ISSN:2691-3704
2691-3704
DOI:10.1021/jacsau.1c00098