ORCID Profile
0000-0002-6923-6332
Current Organisation
Tokyo University of Science
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Publisher: Wiley
Date: 26-07-2022
Abstract: A new H‐bonded crystal [Ru III (Him) 3 (Im) 3 ] with three imidazole (Him) and three imidazolate (Im − ) groups was prepared to obtain a higher‐temperature proton conductor than a Nafion membrane with water driving. The crystal is constructed by complementary N−H⋅⋅⋅N H‐bonds between the Ru III complexes and has a rare Icy‐c* cubic network topology with a twofold interpenetration without crystal anisotropy. The crystals show a proton conductivity of 3.08×10 −5 S cm −1 at 450 K and a faster conductivity than those formed by only HIms. The high proton conductivity is attributed to not only molecular rotations and hopping motions of HIm frameworks that are activated at ∼113 K, but also isotropic whole‐molecule rotation of [Ru III (Him) 3 (Im) 3 ] at temperatures greater than 420 K. The latter rotation was confirmed by solid‐state 2 H NMR spectroscopy probable proton conduction routes were predicted and theoretically considered.
Publisher: American Chemical Society (ACS)
Date: 20-02-2018
DOI: 10.1021/ACS.INORGCHEM.7B03126
Abstract: Iron(III) spin-crossover (SCO) complexes [Fe(qsal)
Publisher: American Chemical Society (ACS)
Date: 25-01-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2017
DOI: 10.1039/C7DT01757J
Abstract: Three mono- and multi-nuclear Ni( ii ) compounds were synthesised and investigated.
Publisher: American Chemical Society (ACS)
Date: 10-2020
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8DT01911H
Abstract: A sextuply linked capsule incorporating two Ni( ii ) cubane units is formed when Ni( ii ) salts are reacted with N -aminoalkyl salicylamidato ligands in a 4 : 3 ratio in methanol.
Publisher: Springer Science and Business Media LLC
Date: 28-03-2018
Publisher: Springer Science and Business Media LLC
Date: 24-05-2018
Publisher: Wiley
Date: 10-05-2023
Abstract: The development of molecule‐based multifunctional switchable materials that exhibit a switch of polarity and dielectric property are extremely limited. We have demonstrated solvent‐vapour‐induced reversible molecular rearrangements between nonpolar crystals [Al(sap)(acac)(sol)] (H 2 sap=2‐salicylideneaminophenol, acac=acetylacetonate, sol=MeOH ( 1 ), EtOH ( 2 )) and polar crystal [Al(sap)(acac)(DMSO)] ( 3 ). This crystal‐to‐crystal structural transformation was accompanied by a switch of second harmonic generation (SHG) and dielectric properties, including the formation of ferroelectric domains, thus reflecting the SHG‐active polar Cc space group of 3 . This is the first reported ex le of dielectric properties and polarity switching in luminescent mononuclear aluminium(III) complexes, which exhibit strong green emission in the solid state.
Publisher: Royal Society of Chemistry (RSC)
Date: 2022
DOI: 10.1039/D2CP03693B
Abstract: Melem has a simple molecular structure and emits in the near-UV region. Melem exhibits delayed fluorescence with a long lifetime and very high PL quantum yield due to thermal activation delayed fluorescence (TADF).
Publisher: Wiley
Date: 26-06-2018
Publisher: Wiley
Date: 15-05-2023
Publisher: Royal Society of Chemistry (RSC)
Date: 2018
DOI: 10.1039/C8DT03275K
Abstract: Wheel-type heptanuclear heterometallic clusters display metal ion dependent ferromagnetic properties and express single molecule magnet behavior based on the magnetic anisotropy.
Publisher: Wiley
Date: 12-03-2019
Abstract: Luminescent Zn
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D1DT01069G
Abstract: The magnetic properties and structural aspects of 1-D Co( ii ) complexes, [Co(pyterpy)Cl 2 ]·2H 2 O (pyterpy: 4′-(4′′′-pyridyl)-2,2′:6′,2′′-terpyridine) and [Co(pyethyterpy)Cl 2 ] (pyethyterpy: 4′-((4′′′-pyridyl)ethynyl)-2,2′:6′,2′′-terpyridine) are reported.
Publisher: International Union of Crystallography (IUCr)
Date: 31-03-2017
DOI: 10.1107/S2056989017004613
Abstract: The title complex, [Ni(C 20 H 14 ClN 3 O)], with an asymmetrically chloride-appended Schiff base ligand has been synthesized and structurally characterized at 100 K. In the compound, the central nickel(II) ion has a square-planar coordination geometry with N 3 O donors of the π-conjugated tetradentate Schiff base ligand. In the crystal, the complexes are connected into an inversion dimer via an Ni...Ni interaction [3.1753 (5) Å] and a pair of π–π interactions [centroid–centroid distance = 3.8416 (16) Å]. The dimers are linked via a C—H...Cl hydrogen bond, forming a chain along the c -axis direction. The dimer chains interact with each other through π–π interactions [centroid–centroid distance = 3.8736 (16) Å], forming a layer expanding parallel to the ac plane.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CC02937H
Abstract: Luminescent ionic liquids are formed by the melting of tetranuclear rhenium( v ) clusters.
Publisher: American Chemical Society (ACS)
Date: 22-05-2019
DOI: 10.1021/ACS.INORGCHEM.9B00543
Abstract: The behavior of single-ion magnets (SIMs) that reflects large distortions of their coordination environments caused by the packing of long alkyl chains for two Co(II) complexes of the type [Co(C
Publisher: Royal Society of Chemistry (RSC)
Date: 2019
DOI: 10.1039/C9DT00593E
Abstract: An amido-bridged homochiral one-dimensional (1D) Mn( iii ) coordination polymer behaves as a weak ferromagnet arising from spin canting with a coercive field of 3.0 kOe.
Publisher: Royal Society of Chemistry (RSC)
Date: 2021
DOI: 10.1039/D0CC07869G
Abstract: [{Re I (CO) 3 (Hbim)} 3 (tpta)] 2 (1, Hbim − = 2,2′-biimidazolate monoanion, tpta = 2,4,6-tripyridyl-1,3,5-triazine) was prepared as a nano-space supramolecule by using a new group of H-bonded coordination capsules.
Publisher: Royal Society of Chemistry (RSC)
Date: 2020
DOI: 10.1039/D0CC04497K
Abstract: A new ex le of vapor-induced reversible polarity and ferroelectricity switching system has been demonstrated in mononuclear iron( iii ) complexes.
No related grants have been discovered for Fumiya Kobayashi.