A02 Ho-Chol Chang

Ho-Chol Chang

Participating A02


Department of Applied Chemistry, Chuo University





Research Project

Electrochemical anisotropic transformation of redox-active molecular assemblies


Akinobu Nakada (Assistant Professor, Department of Applied Chemistry, Chuo University)


This project aims to synthesize chiral molecular assemblies with well-defined electrochemical activity towards the dynamic control of chiral structures and their functionality by means of electrochemical methods.  In particular, we will try to make molecular crystal, liquid crystal, and liquid composed of new redox-active modules with octahedral-, tetrahedral-, and helical structures.  The induction of redox processes on such molecular assemblies would afford dynamic transformation of not only supramolecular chirality but also assembled properties derived from their anisotropic arrangements.  The present targets would therefore provide new opportunity to realize ON/OFF, propagation, amplification, and memory function based on tunable molecular chirality.

Research Areas

Coordination Chemistry、Inorganic Chemistry、Molecular Functional Chemistry


Redox-active complex, Liquid crystal, Electrochemistry


[9] Functional-Group-Directed Photochemical Reactions of Aromatics Triggered by Excited-state Hydrogen Detachment: Additive-free Oligomerization, Disulfidation, and C(sp2)–H Carboxylation with CO2,
Kanae Abe; Akinobu Nakada; Takeshi Matsumoto; Daiki Uchijyo; Hirotoshi Mori; Ho-Chol Chang, J. Org. Chem., 86, 959 - 969, 2020
DOI: 10.1021/acs.joc.0c02456.
[8] Excited-state hydrogen detachment from a tris-(o-phenylenediamine) iron(II) complex in THF at room temperature,
Akinobu Nakada; Takuji Koike; Takeshi Matsumoto; Ho-Chol Chang, Chem. Commun., 56, 15414 - 15417, 2020
DOI: 10.1039/D0CC06219G.
[7] Molecular Insights into the Ligand-Based Six-Proton and -Electron Transfer Processes Between Tris-ortho-Phenylenediamines and Tris-ortho-Benzoquinodiimines Iron(II) Complexes,
Takeshi Matsumoto; Risa Yamamoto; Masanori Wakizaka; Akinobu Nakada; Ho-Chol Chang, Chem. Eur. J., 26, 9609 - 9619, 2020
DOI: 10.1002/chem.202001873.
[6] Facile and selective synthesis of zeolites L and W from a single-source heptanuclear aluminosilicate precursor,
Akira Imaizumi ; Akinobu Nakada; Takeshi Matsumoto; Ho-Chol Chang, Cryst. Eng. Commun., 22, 5862 - 5870, 2020
DOI: 10.1039/d0ce00546k.


[5] Impact of Group 10 Metals on the Solvent-induced Disproportionation of o-Semiquinonato Complexes,
Shota Yamada; Takeshi Matsumoto; Ho‐Chol Chang, Chem. Eur. J., 25, 8268 - 8278, 2019
DOI: 10.1002/chem.201900172.


[4] Tuning Electron Acceptability of the [Mo6S8] Core by Decorating with Methyl Groups on Face-Bridging μ3-Sulfides,
Takeshi Matsumoto; Ryoya Namiki; Ho-Chol Chang, Eur. J. Inog. Chem., 3900 - 3904, 2018
DOI: 10.1002/ejic.201800587.
[3] Direct Photochemical C–H Carboxylation of Aromatic Diamines with CO2 under Electron-Donor- and Base-free Conditions,
Takeshi Matsumoto; Daiki Uchijyo; Takuji Koike; Ryoya Namiki; Ho-Chol Chang, Sci. Rep., 8, 14623, 2018
DOI: 10.1038/s41598-018-33060-3.
[2] Tuning the Mesomorphism and Redox Response of Anionic‐Ligand‐Based Mixed‐Valent Nickel(II) Complexes by Alkyl‐Substituted Quaternary Ammonium Cations,
Yuichi Nakamura; Takeshi Matsumoto; Yasutaka Sakazume; Junnosuke Murata; Ho-Chol Chang, Chem. Eur. J., 24, 29, 7398 - 7409, 2018
DOI: 10.1002/chem.201706006.


[1] A Coordination Network with Ligand-centered Redox Activity Based on facial-[CrIII(2-mercaptophenolato)3]3- Metalloligands,
Masanori Wakizaka; Takeshi Matsumoto; Atsushi Kobayashi; Masako Kato; Ho-Chol Chang, Chem. Eur. J., 23, 9919 - 9925, 2017
DOI: 10.1002/chem.201701613.