Lanthanide ion-doped silica nanohelix: a helical inorganic network acts as a chiral source for metal ions

Tomoyuki Harada; Hiroshi Yanagita; Naoya Ryu; Yutaka Okazaki; Yutaka Kuwahara; Makoto Takafuji; Shoji Nagaoka; Hirotaka Ihara; Reiko Oda

doi:10.1039/d1cc01112j

Lanthanide ion-doped silica nanohelix: a helical inorganic network acts as a chiral source for metal ions

Chem Commun (Camb). 2021 May 4;57(36):4392-4395. doi: 10.1039/d1cc01112j.

Authors

Tomoyuki Harada¹, Hiroshi Yanagita¹, Naoya Ryu², Yutaka Okazaki³, Yutaka Kuwahara¹, Makoto Takafuji¹, Shoji Nagaoka⁴, Hirotaka Ihara¹, Reiko Oda⁵

Affiliations

¹ Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku Kumamoto 860-8555, Japan. ihara@kumamoto-u.ac.jp.
² Materials Development Department, Kumamoto Industrial Research Institute, 3-11-38 Higashimachi, Higashi-ku, Kumamoto 862-0901, Japan. n-ryu@kumamoto-iri.jp.
³ International Research and Education Centre of Advanced Energy Science, Graduate School of Energy Science, Kyoto University, Yoshida-Honmachi, Sakyo-ku Kyoto 606-8501, Japan.
⁴ Department of Applied Chemistry and Biochemistry, Kumamoto University, 2-39-1 Kurokami, Chuo-ku Kumamoto 860-8555, Japan. ihara@kumamoto-u.ac.jp and Materials Development Department, Kumamoto Industrial Research Institute, 3-11-38 Higashimachi, Higashi-ku, Kumamoto 862-0901, Japan. n-ryu@kumamoto-iri.jp.
⁵ Institut de Chimie & Biologie des Membranes & des Nano-objets (UMR5248 CBMN), CNRS, Université de Bordeaux, Institut Polytechnique Bordeaux 2 rue Robert Escarpit, Pessac 33607, France. reiko.oda@u-bordeaux.fr.

PMID: 33949478
DOI: 10.1039/d1cc01112j

Abstract

We demonstrate that lanthanide ions doped in nanometrical silica helices with a chirally arranged siloxane network without any organic mediates show induced chiroptical properties such as circular dichroism and circularly polarized luminescence.