• English
  • Japanese

Publications

[ B 01 ]
Molecular spin quantum control

→Description of Research Areas B01

Room temperature hyperpolarization of nuclear spins in bulk
K. Tateishi, M. Negoro, S. Nishida, A. Kagawa, Y. Morita
Proc. Natl. Acad. Sci., 111, 7527 (2014)

An ab initio MO study of heavy atom effects on the zero-field splitting tensors of high-spin nitrenes: how the spin?orbit contributions are affected
K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui
Phys. Chem. Chem. Phys., 16, 9171 (2014)

Dynamic Nuclear Polarization with Photoexcited Triplet Electrons in a Glassy Matrix
K. Tateishi, M. Negoro, A. Kagawa, M. Kitagawa
Angew. Chem. 2013, 125, 13549 (2013)

Hyperpolarization of Thin Films with Dynamic Nuclear Polarization Using Photoexcited Triplet Electrons
K. Tateishi, M. Negoro, A. Kagawa, T. Uesaka, M. Kitagawa
Journal of the Physical Society of Japan 82, 084005 (2013)

Strongly driven electron spins using a Ku band stripline electron paramagnetic resonance resonator
Y. S. Yap, H. Yamamoto, Y. Tabuchi, M. Negoro, A. Kagawa, M. Kitagawa
J. Magn. Reson., 232, 62-67 (2013)

Pulsed electron spin nutation spectroscopy for weakly exchange-coupled multi-spin molecular systems with nuclear hyperfine couplings: a general approach to bi- and triradicals and determination of their spin dipolar and exchange interactions
K. Ayabe, K. Sato, S. Nakazawa, S. Nishida, K. Sugisaki, T. Ise, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, S. Suzuki, K. Okada, T. Takui
Molecular Physics, 2013, Vol. 111, 18-19, 2767 (2012)

Indeno[2,1-b]fluorene: A 20 pi electron hydrocarbon with extremely low energy light absorption
A. Shimizu, R. Kishi, M. Nakano, D. Shiomi, K. Sato, T. Takui, I. Hisaki, M. Miyata, Y. Tobe
Angew. Chem. Int. Ed., 52, 6076 (2013)

Control of Exchange interactions in π Dimers of 6-Oxophenalenoxyl Neutral π Radicals: Spin-Density Distributions and Multicentered–Two-Electron Bonding Governed by Topological Symmetry and Substitution at the 8-Position
S. Nishida, J. Kawai, M. Moriguchi, T. Ohba, N. Haneda, K. Fukui, A. Fuyuhiro, D. Shiomi, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Chem. Eur. J. 19, 11904 (2013)

A Dicyanomethylene-substituted Triangulene: Effects of Molecular Symmetry Reduction and Electron-accepting Substituents on a Fused Polycyclic Neutral π-Radical System
A. Ueda, H. Wasa, S. Nishida, Y. Kanzaki, K. Sato, T. Takui, Y. Morita
Chem. Asian J. 8, 2057 (2013)

Hexamethoxyphenalenyl as a Possible Quantum Spin Simulator: An Electronically Stabilized Neutral π Radical with Novel Quantum Coherence Owing to Extremely High Nuclear Spin Degeneracy
A. Ueda, S. Suzuki, K. Yoshida, K. Fukui, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Angew. Chem. Int. Ed. 52, 4795 (2013)

Organic Rechargeable Batteries with Tailored Voltage and Cycle Performance
S. Nishida, Y. Yamamoto, T. Takui, Y. Morita
ChemSusChem. 6, 794 (2013)

Time-Resolved Electron Paramagnetic Resonance and Phosphorescence Studies of the Lowest Excited Triplet States of Rh(III) Corrole Complexes
M. Tanabe, H. Matsuoka, Y. Ohba, S. Yamauchi, K. Sugisaki, K. Toyota, K. Sato, T. Takui, I. Goldberg, I. Saltsman, Z. Gross
J. Phys. Chem. A, 116, 9662 (2012)

Quantum Chemical Claculations of The Zero-Field Splitting Tensors for Organic High Spin Multipltes
K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui
EPR of Free Radicals, Chapter 8, Springer-Verlag (2012)

Novel Applications of ESR/EPR: Quantum Computing/Quantum Information Processing
K. Sato, S. Nakazawa, S. Nishida, R.D. Rahimi, T. Yoshino, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, T. Takui
EPR of Free Radicals, Chapter 3, Springer-Verlag (2012)

Molecule-Based Exchange-Coupled High-Spin Clusters - Conventional, High-Field/High-Frequency and Pulse-Based Electron Spin Resonance of Molecule-Based Magnetically Coupled Systems
T. Takui, S. Nakazawa, H. Matsuoka, K. Furukawa, K. Sato, D. Shiomi
EPR of Free Radicals in Solids, Chapter 11, Springer-Verlag (2012)

Application of indirect Hamiltonian tomography to complex systems with short coherence times
K. Maruyama, D. Burgarth, A. Ishizaki, T. Takui, K. B. Whaley
Quantum Information and Computation, 12, 763 (2012)

Trinitroxide-Trioxytriphenylamine: Spin-State Conversion from Triradical Doublet to Diradical Cation Triplet by Oxidative Modulation of a p-Conjugated System
S. Suzuki, A. Nagata, M. Kuratsu, M. Kozaki, R. Tanaka, D. Shiomi, K. Sugisaki, K. Toyota, K. Sato, T. Takui, K. Okada
Angew. Chem. Int. Ed., 51, 3193 (2012)

Estimation of Coupling Constants of a Three-Spin Chain: Case Study of Hamiltonian Tomography with NMR
E. Hosseini Lapasar, K. Maruyama, D. Burgarth, T. Takui, Y. Kondo, M. Nakahara
New J. Phys., 14, 013043 (2012)

An Extremely Redox-active Air-stable Neutral π Radical: Dicyanomethylene-substituted Triangulene with a Three-fold Symmetry
A. Ueda, H. Wasa, S. Nishida, Y. Kanzaki, K. Sato, D. Shiomi, T. Takui, Y. Morita
Chem. Eur. J.18, 16272 (2012)

Crystal Surface Mediated Structure Transformation of Kinetic Framework Composed of Multi-interactive Ligand TPHAP and Co(II)
Y. Yakiyama, A. Ueda, Y. Morita, M. Kawano
Chem. Commun. 48, 10651 (2012)

A Synthetic Two-Spin Quantum Bit: g-Engineered Exchange-Coupled Biradical Designed for Controlled-NOT Gate Operations
S. Nakazawa, S. Nishida, T. Ise, T. Yoshino, N. Mori, R.D. Rahimi, K. Sato, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, H. Hara, P. Carl, P. Höfer, T. Takui
Angew. Chem. Int. Ed. 51, 9860 (2012)

Modulation of Charge-transfer Complexes Assisted by Complementary Hydrogen Bonds of Nucleobases: TCNQ Complexes of a Uracil-substituted EDO-TTF
T. Murata, Y. Umemoto, E. Miyazaki, K. Nakasuji, Y. Morita
CrystEngComm.14, 6881 (2012)

Pulsed Electron Spin Nutation Spectroscopy of Weakly Exchange-Coupled Biradicals: A General Theoretical Approach and Determination of the Spin Dipolar Interaction
K. Ayabe, K. Sato, S. Nishida, T. Ise, S. Nakazawa, K. Sugisaki, Y. Morita, K. Toyota, D. Shiomi, M. Kitagawa, T. Takui
Phys. Chem. Chem. Phys. 14, 9137 (2012)

Tetrathiafulvalene-Type Electron Donors Bearing Biimidazole Moieties: Multifunctional Units with Hydrogen Bonding Abilities
T. Murata, K. Nakasuji, Y. Morita
Eur. J. Org. Chem.22, 4123 (2012)

Development of Organic Conductors with Self-Assembled Architectures of Biomolecules: Synthesis and Crystal Structures of Nucleobase-Functionalized Tetrathiafulvalene Derivatives
T. Murata, E. Miyazaki, S. Maki, Y. Umemoto, M. Ohmoto, K. Nakasuji, Y. Morita
Bull. Chem. Soc. Jpn. 85, 995 (2012)

Chiral Stable Phenalenyl Radical: Synthesis, Electronic-spin Structure, and Optical Properties of [4]Helicene-structured Diazaphenalenyl
A. Ueda, H. Wasa, S. Suzuki, K. Okada, K. Sato, T. Takui, Y. Morita
Angew. Chem. Int. Ed. 51, 6691 (2012)

Air-Stable Open-shell Organic Molecules: Syntheses of Electronic-Spin Delocalized Neutral Radicals and Dynamic Electronic-Spin Physical Properties
Y. Morita, S. Nishida, T. Takui, K. Nakasuji
J. Synth. Org. Chem. Jpn.70, 50 (2012)

Scalable Spin Amplification with a Gain Over a Hundred
M. Negoro, K. Tateishi, A. Kagawa, M. Kitagawa
Phys. Rev. Lett., 107, 050503 (2011)

Tandem Arrays of TEMPO and Nitronyl Nitroxide Radicals with Designed Arrangements on DNA
H. Atsumi, K. Maekawa, S. Nakazawa, D. Shiomi, K. Sato, M. Kitagawa, T. Takui, K. Nakatani
Chem. Eur. J., 18, 178 (2011)

Complete assignment of spin sublevels in the lowest excited triplet state of corrole compounds by time-resolved EPR spectroscopy
S. Yamauchi, M. Tanabe, Y. Ohba, K. Sugisaki, K. Toyota, K. Sato, T. Takui, I. Saltsman
Chem. Phys. Lett., 521, 64 (2011)

Biradical Paradox Revisited Quantitatively: A Theoretical Model for Self-Associated Biradical Molecules as Antiferromagnetically Exchange-Coupled Spin Chains in Solution
Y. Kanzaki, D. Shiomi, K. Sato, T. Takui
J. Phys. Chem. B, 116, 1053 (2011)

An Enantiopair of Organic Ferromagnet Crystals Based on Helical Molecular Packing of Achiral Organic Radicals
D. Shiomi, Y. Kanzaki, S. Okada, R. Arima, Y. Miyazaki, A. Inaba, R. Tanaka, K. Sato, T. Takui
J. Phys. Chem. Lett., 2, 3036 (2011)

Organic tailored batteries materials using stable open-shell molecules with degenerate frontier orbitals
Y. Morita, S. Nishida, T. Murata, M. Moriguchi, A. Ueda, M. Satoh, K. Arifuku, K. Sato, T. Takui
Nature Materials, 10, 947 (2011)

Solution-Stable Triple-Helicates of Quaterimidazole: Three-Dimensional Crystal Structures and Optical Resolution by Chiral-Column HPLC
Y. Yakiyama, T. Murata, T. Ise, D. Shiomi, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Euro J. Inorg. Chem., 3438 (2011)

Intramolecular Hydrogen Bonding in Calix[4]arene-Based Nitroxide Monoradical and Biradical as Studied by CW-ESR and Pulse-ESR HYSCORE Spectroscopy
T. Sawai, K. Sato, D. Shiomi, K. Toyota, Q. Wang, J.-S. Wang, Y. Li, G.-S. Wu, T. Takui
App. Magn. Reson., 41, 337 (2011)

Synthesis, Crystal Structure and Physical Properties of Sterically Unprotected Hydrocarbon Radicals
T. Kubo, Y. Katada, A. Shimizu, Y. Hirao, K. Sato, T. Takui, M. Uruichi, K. Yakushi, R. Haddon
J. Am. Chem. Soc., 133, 14240 (2011)

Intermolecular Hydrogen-Bond Networks and Physical Properties of BF4– and TCNQ·– Salts of Three-Fold Symmetric Tris(alkylamino)phenalenyliums
T. Murata, E. Miyazaki, T. Yokoyama, K. Nakasuji, Y. Morita
Cryst. Growth Des. 12, 804 (2011)

Redox-Active Tubular Frameworks with TTF: Self-Assemblies by Complementary Hydrogen-Bonds and π-Stacks of TTF-Phenyluracil
T. Murata, S. Maki, M. Ohmoto, E. Miyazaki, Y. Umemoto, K. Nakasuji, Y. Morita
CrystEngComm.13, 6880 (2011)

Heteroatom Functionalization of Phenalenyl: Synthesis, Structures, and Properties of Hexa-substituted Phenalenyliums
A. Ueda, K. Yoshida, S. Suzuki, K. Fukui, K. Nakasuji, Y. Morita
J. Phys. Org. Chem. 24, 952 (2011)

Solution-Stable Triple Helicates of Quaterimidazole: Three-Dimensional Crystal Structures and Optical Resolution by Chiral-Column HPLC
Y. Yakiyama, T. Murata, T. Ise, D. Shiomi, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Eur. J. Inorg. Chem. 23, 3438 (2011)

Proton-transfer Salts between an EDT-TTF Derivative Having Imidazole-ring and Anilic Acids: Multi-dimensional Networks by Acid-base Hydrogen-bonds, π-Stacks and Chalcogen Atom Interactions
T. Murata, Y. Yakiyama, K. Nakasuji, Y. Morita
CrystEngComm, 13, 3689 (2011)

Electronic Stabilization Effect of a Spin-Delocalized Neutral Radical: Synthesis of an 8-Cyano-6-oxophenalenoxyl Derivative and Quantitative Evaluation of the Electronic Spin Structure in terms of Resonance Structures
S. Nishida, K. Kariyazono, A. Yamanaka, K. Fukui, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Chem-An Asian J., 6, 1188 (2011)

Synthetic Organic Spin Chemistry for Structurally Well-Defined Open-Shell Graphene Fragments
Y. Morita, S. Suzuki, K. Sato, T. Takui
Nature Chemistry, 3, 197 (2011)

Ab initio and DFT Studies of the Spin-Orbit and Spin-Spin Contributions to the Zero-Field Splitting Tensors of Triplet Nitrenes with Aryl Scaffolds
K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui
Phys. Chem. Chem. Phys., 13, 6970 (2011)

ESR and H-,19F-ENDOR/TRIPLE Study of Fluorinated Diphenylnitroxides as Synthetic Bus Spin-Qubit Radicals with Client Qubits in Solution
T. Yoshino, S. Nishida, K. Sato, S. Nakazawa, R.D. Rahimi, K. Toyota, D. Shiomi, Y. Morita, M. Kitagawa, T. Takui
J. Phys. Chem. Lett., 2, 449 (2011)

Air-stable Curved π-Radical Based on Corannulene: Dynamic Electronic-spin Structure Induced by Temperature-dependent Conformational Changes
A. Ueda, K. Ogasawara, S. Nishida, K. Fukui, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Australian J. Chem., 63, 1627 (2010)

2H-decoupling-accelerated 1H spin diffusion in dynamic nuclear polarization with photoexcited triplet electrons
M. Negoro, K. Nakayama, K. Tateishi, A. Kagawa, K. Takeda, M. Kitagawa
J. Chem. Phys. 133, 154504 (2010)

Total compensation of pulse transients inside a resonator
Y. Tabuchi, M. Negoro, K. Takeda, M. Kitagawa
Journal of Magnetic Resonance, 204, 327 (2010)

Organic polyanionic high-spin molecular clusters: topological-symmetry controlled models for organic ferromagnetic metals
S. Nakazawa, K. Sato, D. Shiomi, M. Yano, T. Kinoshita, M.L.T.M.B. Franco, M.C.R.L.R. Lazana, M.C.R.L.R. Lazana, M. C.B.L. Shohoji, The late K. Itoh, T. Takui
Physical Chemistry Chemical Physics 2011, 13, 1424 (2010)

Hexaazaphenalene Derivatives: One-Pot Synthesis, Hydrogen-Bonded Chiral Helix, and Fluorescence Properties
S. Suzuki S, K. Fukui, A. Fuyuhiro, K. Sato, T. Takui, K. Nakasuji, Y. Morita
Organic Letters, 12, 5036 (2010)

Alternating Covalent Bonding Interactions in a One-Dimensional Chain of a Phenalenyl-Based Singlet Biradical Molecule Having Kekule Structures
A. Shimizu, T. Kubo, M. Uruichi, K. Yakushi, M. Nakano, D. Shiomi, K. Sato, T. Takui, Y. Hirao, K. Matsumoto, H. Kurata, Y. Morita, K. Nakasuji
J. Am. Chem. Soc., 132, 14421 (2010)

Spin-Orbit Contributions in High-Spin Nitrenes/Carbenes: A Hybrid CASSCF/MRMP2 Study of Zero-Field Splitting Tensors
K. Sugisaki, K. Toyota, K. Sato, D. Shiomi, M. Kitagawa, T. Takui
Chem. Phys. Chem., 11, 3146 (2010)

Synthesis and Characterization of Teranthene: A Singlet Biradical Polycyclic Aromatic Hydrocarbon Having Kekule Structures
A. Konishi, Y. Hirao, M. Nakano, A. Shimizu, E. Botek, B. Champagne, D. Shiomi, K. Sato, T. Takui, K. Matsumoto, H. Kurata, T. Kubo
J. Am. Chem. Soc., 132, 11021 (2010)

Synthesis, Crystal Structure, and Charge-Transfer Complexes of TTF Derivatives Having Two Imidazole Hydrogen-Bonding Units
T. Murata, Y. Morita, Y. Yakiyama, K. Nakasuji
Physica B, 405, S41 (2010)