Unraveling chirality transfer mechanism by structural isomer-derived hydrogen bonding interaction in 2D chiral perovskite

Jaehyun Son, Sunihl Ma, Young Kwang Jung, Jeiwan Tan, Gyumin Jang, Hyungsoo Lee, Chan Uk Lee, Junwoo Lee, Subin Moon, Wooyong Jeong, Aron Walsh, Jooho Moon

Research output: Contribution to journalArticlepeer-review

3 Scopus citations

Abstract

In principle, the induced chirality of hybrid perovskites results from symmetry-breaking within inorganic frameworks. However, the detailed mechanism behind the chirality transfer remains unknown due to the lack of systematic studies. Here, using the structural isomer with different functional group location, we deduce the effect of hydrogen-bonding interaction between two building blocks on the degree of chirality transfer in inorganic frameworks. The effect of asymmetric hydrogen-bonding interaction on chirality transfer was clearly demonstrated by thorough experimental analysis. Systematic studies of crystallography parameters confirm that the different asymmetric hydrogen-bonding interactions derived from different functional group location play a key role in chirality transfer phenomena and the resulting spin-related properties of chiral perovskites. The methodology to control the asymmetry of hydrogen-bonding interaction through the small structural difference of structure isomer cation can provide rational design paradigm for unprecedented spin-related properties of chiral perovskite.

Original languageEnglish
Article number3124
JournalNature Communications
Volume14
Issue number1
DOIs
StatePublished - Dec 2023

Bibliographical note

Funding Information:
This work was supported by a National Research Foundation (NRF) of Korea grant (2018M3D1A1058793 and 2021R1A3B1068920) funded by the Ministry of Science and ICT. This research was also supported by the Yonsei Signature Research Cluster Program of 2021 (2021-22-0002).

Publisher Copyright:
© 2023, The Author(s).

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