Accès ouvert
2026
article
OpenAlex
Chunyu Yuan, Saikat Bolar, Yongzheng Zhang, Akitaka Ito et autres
ABSTRACT Dynamic structural and phase evolution commonly occur during electrochemical nitrate (NO 3 − ) reduction, leading to the formation of catalytically favorable active phases, particularly in mixed‐valence metal species. However, large overpotentials and the accumulation of undesired byproducts still severely limit …
jp, cn
(code pays fourni par la source)
2026
paratext
OpenAlex
Yusei Sonobe, Takahiko Morisaki, Risa Utumi, Ryosuke Kumamoto et autres
The Front Cover illustrates flux-synthesized Ni-doped beryl crystals. Among the synthesized samples, the most prominent optical characteristic of Ni-beryl is its pronounced dichroism, appearing as moss green or deep yellow when viewed in the m-plane or c-plane, respectively. More information can be …
jp
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Yusei Sonobe, Takahiko Morisaki, Risa Utumi, Ryosuke Kumamoto et autres
Rough beryl contains various transition metal species owing to its geological formation conditions, and their concentrations largely determine the resulting crystal's color—a key physical property that strongly influences gemstone value. However, quantitative relationships between beryl crystal color and concentration of first‐row transition …
jp
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
Saikat Bolar, Akitaka Ito, Chunyu Yuan, Meiyi Wang et autres
The conversion of plastic waste into value‐added chemicals coupled with energy‐efficient H 2 production is a sustainable strategy for addressing environmental and energy challenges, for example, the selective electrooxidation of polyethylene terephthalate (PET)‐derived ethylene glycol (EG) to C1 products via CC bond …
jp
(code pays fourni par la source)
2026
article
OpenAlex
Nana Hatayama, Ryoji Matsushima, Kazuto Umezu, Akitaka Ito et autres
The formyl group of o ‐phthalaldehyde ( OPA ) is highly reactive and can accept nucleophilic attacks from various reagents including less nucleophilic amides. Reactions of OPA with amides in the presence of acetic anhydride proceeds efficiently to afford the corresponding N …
jp
(code pays fourni par la source)
Accès ouvert
2026
article
OpenAlex
真梨乃 三輪, Akitaka Ito
exhibited pronounced fluorescence color variations, ranging from the near-infrared to the blue region, as a function of the concentration of trifluoroacetic acid.
jp
(code pays fourni par la source)
2026
article
OpenAlex
Atsuna Kondo, Hisako Sato, Akitaka Ito, Yoshiro Kondo et autres
Vibrational circular dichroism reveals supramolecular chirality in hydrated K + -responsive hydrogels. Combined with circular dichroism, it shows that self-assembly mediates long-range chirality transfer from d - or l -alanine to an achiral framework.
jp
(code pays fourni par la source)
2026
article
OpenAlex
Kotoyo Yamashita, Akitaka Ito, Masayuki Izumi, Rika Ochi
-methylhalogenomaleimide amphiphiles. Bromine provides favourable intermolecular cohesion, yielding efficient and thermally robust hydrogels. Single-crystal X-ray analysis suggests cooperative hydrogen-bonding networks along with short Br⋯Br contacts, indicating that halogen bonds may serve as a tunable design element for functional soft materials.
jp
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
Yoshio Teki, Akihiro Shimizu, N. Kimura, Ken Kato et autres
High Resolution Image Download MS PowerPoint Slide Understanding multispin photoexcited systems and their excited-state dynamics is crucial for modern technological applications of organic radicals and related spin systems. In this study, the multispin photoexcited states and excited-state dynamics of anthracene–radical-linked π-conjugated spin …
jp
(code pays fourni par la source)
2025
article
OpenAlex
Kento Iwai, Nana Hatayama, Akitaka Ito, Nagatoshi Nishiwaki
Dibromonaphthalenes are valuable building blocks in organic synthesis; however, achieving discrimination between the α- and β-bromo groups remains a challenge. In this study, we demonstrated the regioselective conversion of the bromo group in 1,7-dibromonaphthalene with high efficiency. Transition metal-catalyzed cross-coupling reactions with …
jp
(code pays fourni par la source)
2025
article
OpenAlex
Toshiyuki Kawaharamura, Miyabi Fukue, Li Liu, Giang T. Dang et autres
Abstract It has been reported that the AlO x thin films with sufficient quality for practical use can be fabricated at low temperatures of ∼350 °C using mist CVD with a precursor of aluminum acetylacetonate Al(acac)3, a mixture solvent of MeOH + …
jp, nz
(code pays fourni par la source)
Accès ouvert
2025
article
OpenAlex
Ryo Fukumoto, Eri Sakuda, Kenichiro Omoto, Akitaka Ito et autres
A monocationic biscyclometalated Ir(III) complex with triarylborane‐bound 2,2′–bipyridine was designed and synthesized, and its photophysical properties are investigated. The triarylborane–Ir(III) complex exhibits significantly enhanced absorption in the 300–400 nm region compared to pristine biscyclometalated Ir(III) complexes, attributed to contributions from π(aryl)–p(B) charge …
jp
(code pays fourni par la source)