Institute for Materials Research, Tohoku University
Miyasaka Laboratory
Division of Solid-State Metal-Complex Chemistry, IMR, Tohoku University Department of Chemistry, Graduate School of Science, Tohoku University
Let's Enjoy Science in Miyasaka Lab
Welcome to Miyasaka Laboratory
The Miyasaka Laboratory conducts research in solid-state physical chemistry, focusing on the manipulation of electrons and spins, with metal complex chemistry as its core. We design molecular assemblies much like building a “model kit,” and elucidate the novel phenomena produced by the "electrons" and “spins” confined within them. Furthermore, by leveraging the high degree of design flexibility and manipulability inherent to molecules, we explore soft materials that exhibit non-trivial electronic and magnetic properties. The diversity and flexibility of molecules represent a treasure trove for the science and technology of the near future. Welcome to a leading-edge laboratory in the field of coordination chemistry!
2026.4 Miyasaka Lab member
本多記念館と本多光太郎先生の銅像（左下）
About “KINKEN”
What exactly is the “Institute for Materials Research (IMR)”? Those of you who have specialized in chemistry might not be familiar with it. IMR is a globally recognized center for research on cutting-edge “materials and physical properties,” encompassing metallic materials, various oxide materials, ceramics, semiconductor materials, as well as hydrogen storage materials, nuclear materials, biomaterials, the development of new physical properties, spintronics materials for next-generation applications, strongly correlated materials, optical device materials, and organic materials. Our pioneering research is consistently conducted and disseminated based on a broad spectrum of academic disciplines and technologies, achieved through the collaboration and integration of basic and applied sciences, as well as the natural and engineering sciences. Please visit the IMR website. Click here for more details on IMR
Significance of Conducting Research at IMR, "KINKEN"
“Why is a chemist at the Institute for Materials Research?” you ask? The Institute for Materials Research isn't just a place that studies hard metals. For example, we also focus on cutting-edge research such as “molecule-based magnets” and “molecular conductors.” In front of the Honda Memorial Hall at the Institute stands a bronze statue of Professor Kotaro Honda (the first recipient of the Order of Culture), the institute's first director. Professor Honda was the person who developed KS magnetic steel, the world’s first artificial magnet. It is no exaggeration to say that the magnets we use casually in our daily lives—and which are indispensable in today’s home appliances, electric vehicles, and robotic drive systems—all trace their origins back to this institute. In this mecca of magnetism, the Miyasaka Laboratory—composed of chemists—is creating a completely new type of magnet: one that is the exact opposite of a “hard and strong magnet”—a magnet that changes simply by being applied by external stimuli.
Are You Interested in Our Work?
Our laboratory welcomes visits from current students and students from other universities at any time. If you are interested in our laboratory, please feel free to contact us. We warmly welcome visits and tours of our lab.
Postdoctoral Researchers (PD)
Please contact us regarding your affiliation, such as your position as a Japan Society for the Promotion of Science (JSPS) Research Fellow (PD).
Graduate Students (Master’s and Ph.D. Programs)
We are currently recruiting graduate students for both Master’s and Ph.D. programs. Our department is a collaborative program with the Department of Chemistry in the Graduate School of Science, and graduate students will be affiliated with the Department of Chemistry. If you are interested, please feel free to contact us. After contacting us via email, we will provide a detailed explanation of our lab during a visit. In addition to the research conducted in the Miyasaka Lab, we will also explain the graduate school entrance exam, future career paths, daily life, and financial aid. For schedules and other information regarding the graduate school entrance exam, please visit the Department of Chemistry website. Click here for details
Research Index
Project 1: World of Nanosized Molecular Magnets
Project 2: Rational Design of D/A-MOFs
Project 3: Synergistic Control of Physical Properties of Chains
Project 4: Control of Physical Properties of Redox-Active MOFs Using Guests
Project 5: Signals from Gated Adsorption Behvaior
Project 6: Gas Responsive Porous Magnets
Project 7: Creation of Ionic Energy
Project 8: Science in Asymmetry
Project 9: Electronic Control in Haneycomb Layered D/A-MOFs
Project 10: Post-Synthetic Dimensional Expansitions of [Ru
2] Units
Project 11: Emission Control in MOFs
Artworks in Chemistry
Guests Alter Electronic States of MOFs
Guest-Triggered Charge Transfer for Magnetic Change in Redox-Active MOF Magnets
J. Zhang, Y. Cao, W. Kosaka, and H. Miyasaka, Acc. Chem. Res.2026, 59, 1632-1643. See the journal page
Guest- & Photo-Induced Spin State of SCO Framework
Guest-induced pore breathing controls the spin state in a cyanido-bridged framework
M. Magott, K. Plonka, B. Sieklucka, K. Dziedzic-Kocurek, W. Kosaka, H. Miyasaka, and D. Pinkowicz, Chem. Sci. 2023, 14, 9651-9663. See the journal page
New charge ordered state in π-PLF
Charge Manipulation in a Series of π-Pillared-Layer Frameworka by Tuning Electron Donation Ability of Building Blocks
W. Kosaka, T. Kitayama, C. Itoh, H. Fukunaga, and H. Miyasaka, Cryst. Grouth Des. 2023, 23, 1238-1246. See the journal page
CO2 changes magnet: it is simple, just due to modification of layer distance
Inter-layer magnetic tuning by gas adsorption in π-stacked pillared-layer framework magnets
W. Kosaka, H. Nemoto, K. Nagano, S. Kawaguchi, K. Sugimoto, and H. Miyasaka, Chem. Sci. 2023, 14, 791-800. See the journal page
Drastic trigger: electron transfer from framework to guest
A Host-Guest Electron Transfer Mechanism for Magnetic and Electronic Modifications in a Redox-Active Metal-Organic Framework
J. Zhang, W. Kosaka, Y. Kitagawa, and H. Miyasaka, Angew. Chem. Int. Ed. 2022, 61, e202115976. See the journal page
D/A-MOFs of [Ru2] and DCNQI/TCNQ
Charge Manupulation in Metal-Organic Frameworks: Toward Designer Functional Molecular Materials
Role of intramolecular hydrogen bonding in the redox chemistry of hydroxybenzoate-bridged paddlewheel diruthenium(II, II) complexes
W. Kosaka, Yudai Watanabe, Kinanti Hantiyana Aliyah, and H. Miyasaka, Dalton Trans. 2022, 51, 85-94. See the journal page
Creating magnets from a non-magnet
Magnet Creation by Guest Insertion into a Paramagnetic Charge-Flexible Layered Metal-Organic Framework
J. Zhnag, W. Kosaka, Hiroyasu Sato, and H. Miyasaka, J. Am. Chem. Soc. 2021, 143, 7021-7031. See the journal page
Manipulation of charge in frameworks?
Ionicity Diagrams for Electron-Donor and Acceptor Metal-Organic Frameworks: DA Chains and D2A Layers Obtained from Paddlewheel-Type Diruthenium(II,II) Complexes and Polycyano-Organic Acceptors
Y. Sekine, M. Nishio, T. Shimada, W. Kosaka, and H. Miyasaka, Inorg. Chem. 2021, 60, 3046-3056. See the journal page
Change its electronic state like a chameleon
Chameleonic layered metal-organic frameworks with variable charge-ordered states triggered by temperature and guest molecules
J. Chen, Y. Sekine, A. Okazawa, H. Sato, W. Kosaka, and H. Miyasaka, Chem. Sci.2020, 11, 3610-3618. See the journal page
Gate-control for gases
Control of Gas Sorption Gate-opening in Solid Solutions of One-dimensional Coordination Polymers
J. Zhang, W. Kosaka, and H. Miyasaka, Chem. Lett.2019, 48, 1308-1311. See the journal page
Let's look at inside of nano-pores, what happen?
In Situ Tracking of Dynamical NO Capture through a Crystal-to-Crystal Transformation from a Gate-Open-Type Chain Porous Coordination Polymer to an NO-Adducted Discrete Isomer
J. Zhang, W. Kosaka, S. Kitagawa, M. Takata, and H. Miyasaka, Chem. Eur. J.2018, 25, 3020-3031. See the journal page
For understanding magnetism in layered magnets
Layered ferrimagnets constructed from charge-transferred paddlewheel [Ru2] units and TCNQ derivatives: the importance of interlayer translational distance in determining magnetic ground state
W. Kosaka, Z. Liu, and H. Miyasaka, Dalton Trans.2018, 47, 11760-11768. See the journal page
Breaking the spin singlet in TTF-TCNQ
Magnetic Switching by the In Situ Electrochemical Control of Quasi-Spin-Peierls Singlet States in a Tree-Dimensional Spin Lattice Incorporating TTF-TCNQ Salts
H. Fukunaga, M. Tonouchi, K. Taniguchi, W. Kosaka, S. Kimura, and H. Miyasaka, Chem. Eur. J.2018, 24, 4294-4303. See the journal page
Magnetic Switching in LIB
In Situ Reversible Ionic Control for Non-Volatile Magnetic Phases in a Donor/Acceptor Metal–Organic Framework
K. Taniguchi, K. Narushima, H. Sagayama, W. Kosaka, N. Shito, and H. Miyasaka, Adv. Func. Mater.2017, 27, 1604990 (1-10). See the journal page
Anthracene locks the lattice
Crystal-to-crystal transformation of fishnet-like layered compounds: a self-locking structure with position-variable intercalated molecules
M. Nishio, N. Motokawa, and H. Miyasaka, CrystEngComm2015, 17, 7618–7622. See the journal page
A nobel charge-ordered state
A charge-disproportionated ordered state with δ = 0.75 in a chemically sensitive donor/acceptor Dδ+2A2δ– layered framework
H. Fukunaga, T. Yoshino, H. Sagayama, J. Yamaura, T. Arima, W. Kosaka, and H. Miyasaka, Chem. Commun.2015, 51, 7795–7798. See the journal page
Cleate new molecular magnets
分子パーツを組み上げて三次元磁性体を創る
H. Fukunaga and H. Miyasaka, 月刊「化学」 2015, 70, 27-32.
CO2 uptake in [Ru2] chains
CO2 superadsorption in a paddlewheel-type Ru dimer chain compound: gate-open performance dependent on inter-chain interactions
W. Kosaka, K. Yamagishi, H. Yoshida, R. Matsuda, S. Kitagawa, M. Takata, and H. Miyasaka, Chem. Commun.2013, 49, 1594–1596. See the journal page
Change by pressure
Pressure effect on the three-dimensional charge-transfer ferromagnet [{Ru2(m-FPhCO2)4}2(BTDA-TCNQ)]
N. Motokawa, H. Miyasaka, and M. Yamashita, Dalton Trans.2010, 39, 4724–4726. See the journal page
Donor/acceptor ladder chains
A ladder based on paddlewheel diruthenium(II, II) rails connected by TCNQ rungs: a polymorph of the hexagonal 2-D network phase
N. Motokawa, T. Oyama, S. Matsunaga, H. Miyasaka, K. Sugimoto, M. Yamashita, N. Lopez, and K. R. Dunbar, Dalton Trans.2008, 4099–4102. See the journal page
From quantum regime to continuous regime
A look at molecular nanosized magnets from the aspect of inter-molecular interaction
H. Miyasaka and M. Yamashita, Dalton Trans.2007, 399–406 (Frontiers). See the journal page
SCMs from donor/acceptor building blocks
Single-Chain Magnet Behavior in an Alternated One-Dimensional Assembly of MnIII Schiff-Base Complex and TCNQ Radical
H. Miyasaka, T. Madanbashi, K. Sugimoto, Y. Nakazawa, W. Wernsdorfer, K. Sugiura, M. Yamashita, C. Coulon, and R. Clérac, Chem. Eur. J.2006, 12, 7028–7040. See the journal page
Official Site Links
Tohoku University
Insitute for Materials Research (IMR)
Collaborative Research Center on Energy Materials (E-IMR)
Department of Chemistry, Tohoku University
The Chemical Society of Japan
Japan Society of Coordination Chemistry
Japan Society for Molecular Science
The Physical Society of Japan
Division of Solid-State Metal-Complex Chemistry (Miyasaka Laboratory) Institute for Materials Research Tohoku University 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan IMR 4th Building R308 Tel: 022-215-2030 (Prof. Miyasaka) 022-215-2032 (Kosaka) 022-215-2033 (Nakayama, Kosaka, Yoshino, Nishiyama, Zhou, and students) 022-215-2582 (Prof. Yamashita) 022-215-2592 (Prof. Yamashita) Fax: 022-215-2031 (Miyasaka office) E-mail: hitoshi.miyasaka.e7@tohoku.ac.jp
