A5000564102- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Magnetism in coordination complexes
- Organic and Molecular Conductors Research
- Porphyrin and Phthalocyanine Chemistry
- Solid-state spectroscopy and crystallography
- Gastric Cancer Management and Outcomes
- Crystallography and molecular interactions
- Hepatocellular Carcinoma Treatment and Prognosis
- Metastasis and carcinoma case studies
- Breast Lesions and Carcinomas
- Colorectal Cancer Treatments and Studies
- Gastrointestinal Tumor Research and Treatment
- Cancer Treatment and Pharmacology
- Cholangiocarcinoma and Gallbladder Cancer Studies
- Inorganic Fluorides and Related Compounds
- Fullerene Chemistry and Applications
- Electron Spin Resonance Studies
- Metal-Catalyzed Oxygenation Mechanisms
- Breast Cancer Treatment Studies
- Synthesis and Properties of Aromatic Compounds
- Cancer and Skin Lesions
- Cancer Diagnosis and Treatment
- Pancreatic and Hepatic Oncology Research
- Gastrointestinal disorders and treatments
Kyoto University
2014-2025
The University of Tokyo
2002-2024
Max Planck Institute for the Structure and Dynamics of Matter
2019
Graduate School USA
2016-2018
Keio University
2018
Mito Saiseikai General Hospital
2017
Takarazuka City Hospital
1992-2016
Meijo University
2016
Sesame Workshop
2013
NTT WEST Osaka Hospital
2001-2011
Magnetic resonance (MR) imaging characteristics of ovarian cystic teratomas were evaluated in 18 patients with 23 surgically proved tumors. The fat within the tumor demonstrated characteristic intensity similar to that subcutaneous and a pathognomic pattern chemical shift artifact helped differentiate from endometrial cysts. In addition fat, MR images had several other allowed confident diagnosis, including gravity-dependent layering or floating debris, palm tree-like protrusions rounded...
Radical anion salts of metal-containing and metal-free phthalocyanines [MPc(3-)](·-), where M = Cu(II), Ni(II), H2, Sn(II), Pb(II), Ti(IV)O, V(IV)O (1-10) with tetraalkylammonium cations have been obtained as single crystals by phthalocyanine reduction sodium fluorenone ketyl. Their formation is accompanied the Pc ligand affects molecular structure metal radical anions well their optical magnetic properties. are characterized alternation short long C-Nimine bonds in owing to disruption its...
The quasistable state in the photoinduced phase transition for quasi-one-dimensional quarter-filled organic conductor $(\mathrm{EDO}\mathrm{\text{\ensuremath{-}}}\mathrm{TTF}{)}_{2}{\mathrm{PF}}_{6}$ has been examined by ultrafast reflective measurements and time-dependent model calculations incorporating both electron-electron electron-phonon interactions. transient optical conductivity spectrum over a wide probe photon-energy range revealed that photoexcitation induced new type of...
We grew large single crystals of the cluster magnet Nb3Cl8 with a magnetic triangular lattice and investigated its properties crystal structure. In Nb3Cl8, [Nb3]8+ has unpaired spin, making it an S = 1/2 anti-ferromagnet. At low temperatures, exhibits magnetic-nonmagnetic phase transition driven by charge disproportionation, in which paramagnetic clusters transform into alternating layers nonmagnetic [Nb3]7+ [Nb3]9+ clusters. The observed exotic phenomenon strong correlation between...
Proton-electron mixed conductors (PEMCs) are an essential component for potential applications in hydrogen separation and energy conversion devices. However, the exploration of PEMCs with excellent conduction, which is quantified by ambipolar conductivity, σamb = σeσH/(σe + σH) (σe: electronic conductivity; σH: proton conductivity), still a great challenge, largely due to lack structural characterization both conducting mechanisms. In this study, we prepared molecule-based proton-electron...
Radical anion salts of metal phthalocyanines (M = Cu<sup>II</sup>, Pb<sup>II</sup>, V<sup>IV</sup>O and Sn<sup>IV</sup>Cl<sub>2</sub>) with the {cryptand(Na<sup>+</sup>)} cations have been obtained studied.
Coordination nickel-bridged fullerene polymer [{Ni(Me3P)2}(μ-η(2),η(2)-C60)]∞ (1) has been obtained via reduction of a Ni(II)(Me3P)2Cl2 and C60 mixture. Each nickel atom is linked in the with two units by η(2)-type Ni-C(C60) bonds 2.087(8)-2.149(8) Å length. Nickel atoms are coordinated to 6-6 as well trimethylphosphine ligands form four-coordinated environment around metal centers. Fullerene cages approach very close each other 9.693(3) interfullerene center-to-center distance, short C-C...
The ability of tin atoms to form stable Sn–M bonds with transition metals was used prepare metal complexes tin(II) phthalocyanine in neutral, monoanionic, and dianionic states. These were obtained via the interactions [SnIVCl2Pc(3−)]•– or [SnIIPc(3−)]•– radical anions {Cp*Mo(CO)2}2, {CpFe(CO)2}2, {CpMo(CO)3}2, Fe3(CO)12, {Cp*RhCl2}2, Ph5CpRu(CO)2Cl. neutral coordination Cp*MoBr(CO)2[SnIIPc(2−)]·0.5C6H4Cl2 (1) CpFe(CO)2[SnIIPc(2−)]·2C6H4Cl2 (2) from [SnIVCl2Pc(3−)]•–. On other hand, yielded...
Voltage-loss analysis is essential in the development of next-generation solar cells, such as perovskite, chalcopyrite, kesterite, and nano/quantum-structured cells. provides valuable insights into how energy conversion efficiency cells can be enhanced. However, a comprehensive accurate method to evaluate voltage loss quantum-structured lacking. This study establishes demonstrates quantitative voltage-loss based on detailed balance theory. reveals relationship between external quantum...
Two mononuclear coordination complexes of fullerene C60 with cobalt, Co(η2-C60)(dppe)(C6H5CN)·C6H4Cl2 (1) and Co(η2-C60)(dppf)(C6H5CN)·C6H4Cl2 (2) (dppe is 1,2-bis(diphenylphosphino)ethane dppf 1,1′-bis(diphenylphosphino)ferrocene) have been obtained by sodium fluorenone reduction the Co(dppe)Cl2 or Co(dppf)Br2 mixtures. The IR visible–NIR spectra 1 2 indicate neutral state fullerenes. Therefore, cobalt atoms formally zerovalent state. Cobalt coordinates to 6–6 bond η2-type Co–C lengths in...
Abstract Ten types of neutral charge transfer (CT) complexes coronene (electron donor; D) were obtained with various electron acceptors (A). In addition to the reported 7,7,8,8‐tetracyanoquinodimethane (TCNQ) complex 1:1 stoichiometry a DA‐type alternating π column, TCNQ also afforded 3:1 complex, in which face‐to‐face dimer parallel coronenes ( Cor‐A s) is sandwiched between TCNQs construct DDA‐type column flanked by another Cor‐B ). Whereas solid‐state 2 H NMR spectra formed deuterated...
The magnetic metal-bridged fullerene dimer {Co(Ph3P)(C6H5CN)}2(μ2-η2,η2-C60)2 was synthesized for the first time and studied by X-ray crystallography susceptibility methods. dimers, in which two C60 cages are η2-bonded through Co0 atoms (S = 1/2), have a triplet 1) state transfer to diamagnetic singlet 0) ground below 50 K (J/kB −28.6 K). theoretical calculations show that can work as an efficient spin coupler between paramagnetic metals.
Using time-resolved near-infrared reflectance spectroscopy and mid-infrared vibrational spectroscopy, we studied photoinduced phase transition of the charge-ordered insulating in a charge-transfer complex (EDO-TTF)2PF6 (EDO-TTF: ethylenedioxy-tetrathiafulvalene) hundred picosecond range after photoexcitation. The temporal profiles at 0.83–1.03 eV, which are characteristic charge-disproportionate immediately photoexcitation, suggested formation new metastable range. Time-resolved spectra...
Abstract Iron hexadecachlorophthalocyanine (Cl 16 Pc) salts with a layered arrangement of phthalocyanine (Pc) macrocycles were obtained by the reduction FeCl Pc sodium fluorenone ketyl in presence PPNCl [PPN + : bis(triphenylphosphine)iminium cation] and TBABr (TBA tetrabutylammonium cation). (PPN )[(Fe I Cl – ] · 0.78C 6 H 4 2 0.22C 14 ( 1 ) contains π–π stacking columns formed dimerized (Fe anions. The side‐by‐side neighboring results formation iron structure. 3 {[(FeCl 3– } hexagonal...
The photoinduced phase formation in a strongly correlated crystal $(\mathrm{EDO-TTF}{)}_{2}{\mathrm{PF}}_{6}$ (EDO-TTF: 4,5-ethylenedioxytetrathiafulvalene) is investigated using 12 fs laser pulse. time determined as 40 with observation of coherence electron-phonon coupled excited states prior to formation. temperature-independent dephasing \ensuremath{\sim}22 up 180 K and the frequency phonon oscillation \ensuremath{\sim}38 THz, corresponding intramolecular vibrations EDO-TTF. coherently...
Coordination of two bridging cobalt atoms to fullerenes by the η(2) type in {Co(dppe)}2{μ2-η(2):η(2)-η(2):η(2)-[(C60)2]}·3C6H4Cl2 [1; dppe = 1,2-bis(diphenylphosphino)ethane] triggers fullerene dimerization with formation intercage C-C bonds 1.571(4) Å length. Coordination-induced opens a path design structures bonded both covalent and η(2)-coordination-bridged metal atoms.
Two isostructural salts with radical anions of titanyl and vanadyl phthalocyanines (Me4P+)[MIVO(Pc•3–)]•–(TPC)0.5·C6H4Cl2 (M = Ti (1), V (2)), where TPC is triptycene, were obtained. These contain phthalocyanine layers composed the {[MIVO(Pc•3–)]•–}2 dimers strong π–π intradimer interaction. The reduction metal was centered on Pc macrocycles providing appearance new bands in near infrared range a blue shift Q- Soret bands. That results alternation shorter longer C–Nimine bonds Pc•3–. Only...