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Hybrid Photocatalyst Constructed Using Polymerized Metal Complexes and Semiconductor Powders for Photocatalytic Carbon Dioxide Reduction 利用聚合金属复合物和半导体粉末构建的混合光催化剂用于光催化还原二氧化碳
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-06 DOI: 10.1093/chemle/upae085
Yasuomi Yamazaki, Riku Maruyama, H. Kumagai, Kazuhiko Maeda, Taro Tsubomura
{"title":"Hybrid Photocatalyst Constructed Using Polymerized Metal Complexes and Semiconductor Powders for Photocatalytic Carbon Dioxide Reduction","authors":"Yasuomi Yamazaki, Riku Maruyama, H. Kumagai, Kazuhiko Maeda, Taro Tsubomura","doi":"10.1093/chemle/upae085","DOIUrl":"https://doi.org/10.1093/chemle/upae085","url":null,"abstract":"\u0000 Hybrid photocatalysts prepared by the adsorption of metal complexes on semiconductors via anchoring groups are among notable photocatalysts for selective CO2 reduction using abundant electron donors. However, their photocatalytic activities are limited by their low adsorption amounts and strength. In this study, we demonstrate the reductive polymerization of vinyl groups in metal complexes triggered by excited electrons on semiconductors as a new immobilization method. This approach significantly enhanced the adsorption amount and durability, thus increasing the photocatalytic performance.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141007737","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Transfer-Hydrogenation of Aldehydes and Ketones with Tetrahydroxydiboran in Water 醛和酮与四羟基二硼酸在水中的转移氢化反应
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-06 DOI: 10.1093/chemle/upae082
Kaili Zhang, S. Okumura, Yasuhiro Uozumi
{"title":"Transfer-Hydrogenation of Aldehydes and Ketones with Tetrahydroxydiboran in Water","authors":"Kaili Zhang, S. Okumura, Yasuhiro Uozumi","doi":"10.1093/chemle/upae082","DOIUrl":"https://doi.org/10.1093/chemle/upae082","url":null,"abstract":"\u0000 We have developed a transfer hydrogenation of aldehydes and ketones with B2(OH)4 as a reductant and amphiphilic resin-dispersed palladium nanoparticles as a catalyst system in an aqueous medium, where water also serves as a hydrogen donor. A variety of aldehydes and ketones, including aliphatic carbonyl compounds, reacted to give the corresponding primary and secondary alcohols, respectively. The catalyst was recovered by filtration and reused nine times without a significant loss of its catalytic activity.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141009985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zirconium-based metal-organic framework with bis(hydroxyphenyl)anthracene derivative: molecular design, synthesis, crystal structures, and methane adsorption 含有双（羟基苯基）蒽衍生物的锆基金属有机框架：分子设计、合成、晶体结构和甲烷吸附作用
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-01 DOI: 10.1093/chemle/upae091
T. Ohmura, Yoichi Hosokawa, Hirofumi Motegi, Yusuke Mukae, Shunsuke Senda, Tsuyoshi Matsumoto, Kazuyuki Tatsumi, Akira Shichi, Hiroshi Nakamura, Arimitsu Usuki
{"title":"Zirconium-based metal-organic framework with bis(hydroxyphenyl)anthracene derivative: molecular design, synthesis, crystal structures, and methane adsorption","authors":"T. Ohmura, Yoichi Hosokawa, Hirofumi Motegi, Yusuke Mukae, Shunsuke Senda, Tsuyoshi Matsumoto, Kazuyuki Tatsumi, Akira Shichi, Hiroshi Nakamura, Arimitsu Usuki","doi":"10.1093/chemle/upae091","DOIUrl":"https://doi.org/10.1093/chemle/upae091","url":null,"abstract":"\u0000 A metal-organic framework (MOF) composed of a zirconium cluster with a bis(hydroxyphenyl)anthracene linker, Zr6O4(OH)4(adhb)6 (adhb: 4,4′-(anthracene-9,10-diyl)bis(2-hydroxybenzoic acid), was designed to achieve methane storage up to 300 g and batch synthesized without using an autoclave. This MOF can adsorb 65.4 cm3STP/cm3 and 4.7w% of methane at 294 K and 9.8 bar due to its large specific surface area of 1,818 m2/g and void fraction of 0.78 cm3/g. Furthermore, an octahedral cage model indicated that the anthracene ring provides a suitable pore entrance and steric hindrance for methane inclusion.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141131986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Deformation of transfersomes dispersed in hydrated deep eutectic solvent in stratum corneum 分散在水合深共晶溶剂中的转移体在角质层中的变形
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-01 DOI: 10.1093/chemle/upae074
Amika Takada, Misato Matsuoka, Mina Sakuragi
{"title":"Deformation of transfersomes dispersed in hydrated deep eutectic solvent in stratum corneum","authors":"Amika Takada, Misato Matsuoka, Mina Sakuragi","doi":"10.1093/chemle/upae074","DOIUrl":"https://doi.org/10.1093/chemle/upae074","url":null,"abstract":"\u0000 The deformation of transfersomes (TFs) dispersed in deep eutectic solvents and applied to the stratum corneum (SC) was evaluated by small-angle X-ray scattering. We found that TFs permeated the SC, while the regularity and period of the multilayer structure of TFs deformed significantly, depending on the SC location and the time after application.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141038810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Polyion complex vesicles containing viscosity enhancer for sustained release of water-soluble low-molecular-weight drugs 含有增粘剂的聚阴离子复合囊泡，用于持续释放水溶性低分子量药物
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-01 DOI: 10.1093/chemle/upae070
A. Goto, Y. Anraku, Shigeto Fukushima, Akihiro Kishimura
{"title":"Polyion complex vesicles containing viscosity enhancer for sustained release of water-soluble low-molecular-weight drugs","authors":"A. Goto, Y. Anraku, Shigeto Fukushima, Akihiro Kishimura","doi":"10.1093/chemle/upae070","DOIUrl":"https://doi.org/10.1093/chemle/upae070","url":null,"abstract":"\u0000 Polyion complex vesicles (PICsomes) possess several features that render them as suitable for drug delivery systems. However, retaining water-soluble low-molecular-weight compounds (WLMWCs) remains challenging because of the high permeability of their vesicular membranes. Herein, we propose a new approach for prolonged retention and sustained release of WLMWCs from PICsomes by loading hydroxypropyl methylcellulose to increase the viscosity of the inner aqueous phase. The PICsomes retained 2% to 4% of the WLMWCs, and 100% of the WLMWCs were released within 96 h according to first-order kinetics.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141050868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Measurement of Antioxidant Activity Against Superoxide Radical Anions by Sonochemiluminescence 利用声化学发光法测定针对超氧自由基阴离子的抗氧化活性
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-01 DOI: 10.1093/chemle/upae081
Hikari Kuriya, Qilan Zhang, Shusuke Sasahara, Masanori Wakamiya, Junichiro Soejima, Jiye Jin
{"title":"Measurement of Antioxidant Activity Against Superoxide Radical Anions by Sonochemiluminescence","authors":"Hikari Kuriya, Qilan Zhang, Shusuke Sasahara, Masanori Wakamiya, Junichiro Soejima, Jiye Jin","doi":"10.1093/chemle/upae081","DOIUrl":"https://doi.org/10.1093/chemle/upae081","url":null,"abstract":"\u0000 This paper, for the first time, reports on an alternative method for measuring the free radical-scavenging properties of phenolic compounds, specifically against superoxide anion radicals (O2•−) by sonochemiluminescence (SCL) of lucigenin (Luc2+). A miniaturized sonochemical reactor is developed for the SCL observation under pulsed 450 kHz ultrasound irradiation.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141032745","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Remarkably facilitated crystallization of MSE-type zeolite by using an efficient organic structure-directing agent 使用高效有机结构引导剂显著促进 MSE 型沸石结晶
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-29 DOI: 10.1093/chemle/upae077
Kaisei Nakamura, Kai Okubo, Fumiya Takaoka, Shengxiang Zhang, Satoshi Inagaki, Yoshihiro Kubota
{"title":"Remarkably facilitated crystallization of MSE-type zeolite by using an efficient organic structure-directing agent","authors":"Kaisei Nakamura, Kai Okubo, Fumiya Takaoka, Shengxiang Zhang, Satoshi Inagaki, Yoshihiro Kubota","doi":"10.1093/chemle/upae077","DOIUrl":"https://doi.org/10.1093/chemle/upae077","url":null,"abstract":"<jats:title>Abstract</jats:title> A very powerful organic structure-directing agent (OSDA) for the synthesis of MSE-type zeolite was designed and successfully prepared. When using conventional OSDA, more than 10 d of crystallization time was necessary, whereas the use of the new type of OSDA gave a highly crystalline MSE-type zeolite using only 32 h of crystallization time.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Hyaluronic acid microresonators for memorable humidity sensing 用于可记忆湿度传感的透明质酸微谐振器
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-26 DOI: 10.1093/chemle/upae078
Hsin-Yen Liao, Wey Yih Heah, Hiroshi Yamagishi, Yohei Yamamoto
{"title":"Hyaluronic acid microresonators for memorable humidity sensing","authors":"Hsin-Yen Liao, Wey Yih Heah, Hiroshi Yamagishi, Yohei Yamamoto","doi":"10.1093/chemle/upae078","DOIUrl":"https://doi.org/10.1093/chemle/upae078","url":null,"abstract":"<jats:title>Abstract</jats:title> Self-assembled hyaluronic acid (HA) microspheres are utilized for memorable optical humidity sensing. Because of the extremely high hygroscopic property of HA, the microsphere deforms in a highly humid atmosphere and the shape change is irreversible, thereby memorizing the history of the humidity change. The optically memorable humidity sensor can notify whether the humidity exceeds the upper limit of 50%.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Synthesis and Property of 2,2-Difluoro-1,4-diazaborole 2,2-Difluoro-1,4-diazaborole 的合成与性质
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-23 DOI: 10.1093/chemle/upae069
Masataka Nakahara, Yuki Wada, Masaki Kawano, Kengo Hanaya, Takeshi Sugai, Shuhei Higashibayashi
{"title":"Synthesis and Property of 2,2-Difluoro-1,4-diazaborole","authors":"Masataka Nakahara, Yuki Wada, Masaki Kawano, Kengo Hanaya, Takeshi Sugai, Shuhei Higashibayashi","doi":"10.1093/chemle/upae069","DOIUrl":"https://doi.org/10.1093/chemle/upae069","url":null,"abstract":"\u0000 The synthesis of 2,2-difluoro-1,4-diazaboroles was achieved through the condensation of aliphatic acyltrifluoroborates and amino-N-heteroarenes under acidic conditions. Various N-heteroarenes, including pyridine, pyrimidine, pyridazine, thiazole, and isoquinoline, were successfully employed in the reaction. Among the synthesized 2,2-difluoro-1,4-diazaboroles, the one with an isoquinoline structure exhibited the most intense light blue emission.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140670163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Facile Preparation of SeCF3-substituted Alkenes from Alkenyl Iodides and Selenium Powder 用烯基碘化物和硒粉简便制备 SeCF3 取代的烯烃
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-20 DOI: 10.1093/chemle/upae076
Haruka Matsui, Yuki Kojima, Koji Hirano
{"title":"Facile Preparation of SeCF3-substituted Alkenes from Alkenyl Iodides and Selenium Powder","authors":"Haruka Matsui, Yuki Kojima, Koji Hirano","doi":"10.1093/chemle/upae076","DOIUrl":"https://doi.org/10.1093/chemle/upae076","url":null,"abstract":"\u0000 A synthetic method of SeCF3-substituted alkenes by a copper-mediated trifluoromethylselenolation of alkenyl iodides has been developed. In the presence of CuI and bpy, AgSeCF3 generated in-situ from Ag salt, TMSCF3, and commercially available Se powder, can be successfully coupled with alkenyl iodides to produce the trifluoromethylselenoalkenes with high chemoselectivity. The reaction shows a broad substrate scope including alkenyl iodides derived from biologically active molecules. Moreover, the feasibility of its scale-up synthesis has been demonstrated, thereby underscoring the practicality of the protocol.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":null,"pages":null},"PeriodicalIF":1.6,"publicationDate":"2024-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140682295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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