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Accelerated water stability test and lifetime prediction of metal-organic frameworks 金属有机框架的加速水稳定性测试和寿命预测
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-29 DOI: 10.1093/chemle/upae093
Tetsushi Ohmura, Yusuke Mukae, Yoichi Hosokawa, Hiroshi Nakamura, Takafumi Yamauchi
{"title":"Accelerated water stability test and lifetime prediction of metal-organic frameworks","authors":"Tetsushi Ohmura, Yusuke Mukae, Yoichi Hosokawa, Hiroshi Nakamura, Takafumi Yamauchi","doi":"10.1093/chemle/upae093","DOIUrl":"https://doi.org/10.1093/chemle/upae093","url":null,"abstract":"To predict the lifetime of metal-organic frameworks (MOFs) with high water capacity/stability as water harvesters and adsorption heat pumps, a simple accelerated water stability test was developed using liquid water and water vapor in an autoclave. The function obtained from Bnlnauer-Emmett-Teller (BET) surface area loss analysis of MOF-801-P was applied to lifetime prediction, and a long-term stability test of MOF-801-P with liquid water at 65 °C agreed well with the values predicted using the developed test.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"23 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141256666","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
Control of sulfur number in sulfur-containing compounds: The effect of base type, equivalent of the base, and reaction solvent in synthesizing linear sulfur 控制含硫化合物中的硫数：碱类型、碱当量和反应溶剂对合成线性硫的影响
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-28 DOI: 10.1093/chemle/upae105
Ryuto Nishimura, Yuichiro Kobayashi, Ryunosuke Kamioka, Shun Hashimoto, Hiroyasu Yamaguchi
{"title":"Control of sulfur number in sulfur-containing compounds: The effect of base type, equivalent of the base, and reaction solvent in synthesizing linear sulfur","authors":"Ryuto Nishimura, Yuichiro Kobayashi, Ryunosuke Kamioka, Shun Hashimoto, Hiroyasu Yamaguchi","doi":"10.1093/chemle/upae105","DOIUrl":"https://doi.org/10.1093/chemle/upae105","url":null,"abstract":"<jats:title>Abstract</jats:title> Since the properties of sulfur-containing compounds depend on the sulfur number contained in the compound, it is desirable to develop a method to control the sulfur number. A common method for synthesizing sulfur-containing compounds is to mix sulfur with a base to form linear sulfur, which is then reacted with an organic compound to obtain a sulfur-containing compound. In this study, we systematically investigated the relationship between the type of base, equivalent amount of the base, and the reaction solvent and the sulfur number in the resulting sulfur-containing compound. The sulfur number of sulfur-containing compounds prepared in water was controlled by the equivalent ratio of elemental sulfur (S8) and base. Sulfur-containing compound with high sulfur values was obtained using solvents with low dielectric constants and with lower base equivalents compared to S8.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"43 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141256766","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
Structural color control by remote electrical manipulation of chiral dopant molecules in a chiral nematic phase 在手性向列相中通过远程电操纵手性掺杂分子实现结构色彩控制
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-05-28 DOI: 10.1093/chemle/upae098
Keiki Kishikawa, Daiki Fukuda, Kazuto Takayashiki, Michinari Kohri
{"title":"Structural color control by remote electrical manipulation of chiral dopant molecules in a chiral nematic phase","authors":"Keiki Kishikawa, Daiki Fukuda, Kazuto Takayashiki, Michinari Kohri","doi":"10.1093/chemle/upae098","DOIUrl":"https://doi.org/10.1093/chemle/upae098","url":null,"abstract":"<jats:title>Abstract</jats:title> 1,2-Bis((cholesteryloxy)octyloxy)-4-nitrobenzene was synthesized as a chiral dopant that exhibited electroresponsiveness in nematic liquid crystal (LC) phases. Even in a nonelectroresponsive host nematic LC, the helical pitch of the chiral nematic phase, generated by doping the chiral dopant molecules, could be altered in response to an external electric field, thus controlling the selective reflection color.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"70 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141257164","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":"59 1","pages":""},"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":"22 1","pages":""},"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
Effective synthesis of triphylite NaMnPO4 through acid–base reaction in aqueous solution 在水溶液中通过酸碱反应有效合成三钛铁矿 NaMnPO4
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-17 DOI: 10.1093/chemle/upae051
Hiroshi Nagata, Junji Akimoto, Kunimitsu Kataoka
{"title":"Effective synthesis of triphylite NaMnPO4 through acid–base reaction in aqueous solution","authors":"Hiroshi Nagata, Junji Akimoto, Kunimitsu Kataoka","doi":"10.1093/chemle/upae051","DOIUrl":"https://doi.org/10.1093/chemle/upae051","url":null,"abstract":"<jats:title>Abstract</jats:title> Triphylite structure NaMnPO4 is expected to be an excellent candidate as the positive active material of a Na-ion battery. However, NaMnPO4 tends to generate a maricite phase that does not have a valid sodium-ion conduction path. Thus, it undergoes several complex reaction steps, such as ion exchange, to obtain the triphylite phase to have an effective sodium-ion conduction path. This study provides an effective direct synthesis method for triphylite NaMnPO4 through an acid–base reaction in aqueous solution under mild conditions.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"43 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255164","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 of N-oxide Poly(1-vinylimidazole) for pDNA delivery systems in vivo 合成用于 pDNA 体内递送系统的 N-氧化物聚（1-乙烯基咪唑
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-16 DOI: 10.1093/chemle/upae044
Ren Misaizu, Yoichi Negishi, Shoichiro Asayama
{"title":"Synthesis of N-oxide Poly(1-vinylimidazole) for pDNA delivery systems in vivo","authors":"Ren Misaizu, Yoichi Negishi, Shoichiro Asayama","doi":"10.1093/chemle/upae044","DOIUrl":"https://doi.org/10.1093/chemle/upae044","url":null,"abstract":"<jats:title>Abstract</jats:title> N-oxide poly(1-vinylimidazole) (PVIm+–O−) has been synthesized as a unique biocompatible polyampholyte. Measurements of solution turbidity prove that PVIm+–O− had no significant effect on rapid aggregate formation with serum proteins. Agarose gel retardation assay, particle size/ζ-potential measurement, and cytotoxicity evaluation prove that the PVIm+–O− coated binary complexes between branched poly(ethyleneimine) (bPEI) and plasmid DNA (pDNA). The resulting PVIm+–O−/bPEI/pDNA ternary complex mediated higher gene expression than the bPEI/pDNA binary complex in vivo mouse skeletal muscle. These results suggest that PVIm+–O− is a polyampholyte for biocompatibility.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"28 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255120","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
Shaping of metal–organic framework using chitosan and triphosphate cross-linker 利用壳聚糖和三磷酸交联剂塑造金属有机框架
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-15 DOI: 10.1093/chemle/upae050
Aditya Irfan Witono, Xin Zheng, Yuki Saito, Shin-ichiro Noro
{"title":"Shaping of metal–organic framework using chitosan and triphosphate cross-linker","authors":"Aditya Irfan Witono, Xin Zheng, Yuki Saito, Shin-ichiro Noro","doi":"10.1093/chemle/upae050","DOIUrl":"https://doi.org/10.1093/chemle/upae050","url":null,"abstract":"<jats:title>Abstract</jats:title> The Zr metal–organic framework (MOF) UiO-66 was shaped into beads using chitosan and P3O105− as a cross-linker. The obtained UiO-66–chitosan beads showed decreases in pore size and Brunauer–Emmett–Teller (BET) surface area but enhanced N2 adsorption energy with retention of Zr-ligand connectivity. This finding will provide an important insight into the practical application of MOFs.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"20 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255165","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
Multinuclear coordination compounds constructed by bis-imidazole and azide ligands. Creation of new network structures and an M2L4 cage that includes two anions 双咪唑和叠氮配体构建的多核配位化合物。创建新的网络结构和包含两个阴离子的 M2L4 笼
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-10 DOI: 10.1093/chemle/upad044
Shiori Koike, Katsunori Yamanishi, Kanoko Watanabe, Hiroyuki Takemoto, Mitsuru Kondo
{"title":"Multinuclear coordination compounds constructed by bis-imidazole and azide ligands. Creation of new network structures and an M2L4 cage that includes two anions","authors":"Shiori Koike, Katsunori Yamanishi, Kanoko Watanabe, Hiroyuki Takemoto, Mitsuru Kondo","doi":"10.1093/chemle/upad044","DOIUrl":"https://doi.org/10.1093/chemle/upad044","url":null,"abstract":"<jats:title>Abstract</jats:title> Treatment of the bis-imidazole ligand, bitb, with CuSO4·5H2O, ZnSO4·7H2O, and Co(NO3)2·6H2O in the presence of NaN3 produced [Cu2(μ-N3)2(bitb)(N3)2]n (1), [Zn(bitb)(N3)2]n (2), and [(N3)2 ⊂ Co2(bitb)4(N3)2](Me2CO)2·(H2O)4 (3). Compound 1 is a 2D coordination polymer with {Cu2(μ-N3)2}n chains in the framework. Compound 2 is a 1D coordination polymer with repetitions of the “figure-of-eight-shaped” turns. Compound 3 is an M2L4 cage compound that includes 2 N3− in the cage. Their unprecedented coordination structures are described.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"37 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255527","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 electrochemical properties of Li5 + xFe1–xMnxO4 with an antifluorite-type structure as a lithium battery cathode 具有反萤石型结构的 Li5 + xFe1-xMnxO4 作为锂电池正极的合成与电化学特性
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2024-04-08 DOI: 10.1093/chemle/upae046
Ryosuke Goto, Sou Taminato, Daisuke Mori, Nobuyuki Imanishi
{"title":"Synthesis and electrochemical properties of Li5 + xFe1–xMnxO4 with an antifluorite-type structure as a lithium battery cathode","authors":"Ryosuke Goto, Sou Taminato, Daisuke Mori, Nobuyuki Imanishi","doi":"10.1093/chemle/upae046","DOIUrl":"https://doi.org/10.1093/chemle/upae046","url":null,"abstract":"<jats:title>Abstract</jats:title> A new antifluorite-structured Li5 + xFe1–xMnxO4 was synthesized by conventional solid-state reaction and the lithium (de-)intercalation properties were characterized from electrochemical measurements. A single phase with a Li6MnO4-type structure was obtained for the x ≥ 0.6 compositions. The first discharge capacity of a Li5.6Fe0.4Mn0.6O4 (x = 0.6) electrode treated by ball milling was 450 mAh/g. The reversible reaction continued to proceed with ca. 200 mAh/g after subsequent cycles. A new iron–manganese system with an antifluorite structure could be a potential candidate as a high-capacity cathode material.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"18 1","pages":""},"PeriodicalIF":1.6,"publicationDate":"2024-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141255166","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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