Sequential chiral induction between organic and inorganic supramolecular helical assemblies for the in situ formation of chiral carbon dots

Piyanan Pranee; Antoine Scalabre; Christine Labrugere; Naoya Ryu; Akira Yano; Nanami Hano; David Talaga; Yutaka Okazaki; Emilie Pouget; Sylvain Nlate; Sébastien Bonhommeau; Makoto Takafuji; Takehiko Wada; Hirotaka Ihara; Thierry Buffeteau; Dario M. Bassani; Reiko Oda

doi:10.1039/D3CC02057F

Sequential chiral induction between organic and inorganic supramolecular helical assemblies for the in situ formation of chiral carbon dots†

Piyanan Pranee,

^a Antoine Scalabre,

^a Christine Labrugere,^c Naoya Ryu,

^d Akira Yano,^e Nanami Hano,

^ah David Talaga,^b Yutaka Okazaki,

^f Emilie Pouget,

^a Sylvain Nlate,

^a Sébastien Bonhommeau,

^b Makoto Takafuji,

^h Takehiko Wada,

^e Hirotaka Ihara,

^hi Thierry Buffeteau,

^b Dario M. Bassani

*^b and Reiko Oda

*^ag

Author affiliations

* Corresponding authors

^a Univ. Bordeaux, CNRS, Bordeaux INP, CBMN, UMR 5248, Pessac F-33600, France
E-mail: reiko.oda@u-bordeaux.fr

^b Univ. Bordeaux, CNRS, Bordeaux INP, ISM UMR 5255, Talence F-33400, France

^c CNRS, Université de Bordeaux, PLACAMAT UMS 3626, Pessac F-33600, France

^d Materials Development Department, Kumamoto Industrial Research Institute, 3-11-38, Higashimachi, Higashi-ku, Kumamoto 862-0901, Japan

^e Institute of Multidisciplinary Research for Advance Materials, Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan

^f Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-ku, Kyoto 606-8501, Japan

^g WPI-Advanced Institute for Materials Research, Tohoku University, 2-1-1, Katahira, Aoba-Ku, Sendai 980-8577, Japan

^h Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku, Kumamoto 860-8555, Japan

ⁱ National Institute of Technology, Okinawa College, Henoko, Nano 905-2192, Japan

Abstract

Self-organised helical bilayers of dicationic gemini surfactants confined in helical silica nanospace were transformed in situ to carbon dots (CDots) via pyrolysis. These water-dispersible CDots exhibit electronic absorption spanning the UV and visible range and possess symmetrical circular dichroism (CD) signals, the sign of which depends on the handedness of the helices.

Chemical Communications

Sequential chiral induction between organic and inorganic supramolecular helical assemblies for the in situ formation of chiral carbon dots†

Abstract

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Sequential chiral induction between organic and inorganic supramolecular helical assemblies for the in situ formation of chiral carbon dots

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