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Synthesis, Characterization, and Application of a Cyclic Stilbene Derivative with Simultaneous Two-Photon Absorption Character 具有双光子吸收特性的环二苯乙烯衍生物的合成、表征及应用
4区 化学
Chemistry Letters Pub Date : 2023-09-28 DOI: 10.1246/cl.230388
Erik Budi Santiko, Shrestha Binod Babu, Fan Zhang, Cheng-Lin Wu, Tzu-Chau Lin, Manabu Abe
{"title":"Synthesis, Characterization, and Application of a Cyclic Stilbene Derivative with Simultaneous Two-Photon Absorption Character","authors":"Erik Budi Santiko, Shrestha Binod Babu, Fan Zhang, Cheng-Lin Wu, Tzu-Chau Lin, Manabu Abe","doi":"10.1246/cl.230388","DOIUrl":"https://doi.org/10.1246/cl.230388","url":null,"abstract":"A new cyclic 1 stilbene derivative, 6-(4-(diphenylamino)phenyl)-N,N-diphenyl-7,8-dihydronaphthalen-2-amine (D2PDN), featuring quadrupolar system having electron-donating substituents (NPh2), was synthesized and characterized in this study. The fluorescence quantum yield was 89% (under air) and 99% (under argon) in toluene. The two-photon (2P) cross-section was determined to be 166 GM at 700 nm using 2P-excitation fluorescence method. The 2P-responsive chromophore in near-infrared region has reversible oxidation signals at 0.17, 0.28, and 0.53 V vs Fc0/Fc+. Compound D2PDN, E*ox = –2.83 V, was found to be used as a simultaneous 2P-responsive photoredox catalyst. A new cyclic stilbene derivative, 6-(4-(diphenylamino)phenyl)-N,N-diphenyl-7,8-dihydronaphthalen-2-amine (D2PDN) was synthesized and characterized. The fluorescence quantum yield was 99% under Argon in toluene. The two-photon (2P) cross-section was determined to be 166 GM at 700 nm. The 2P-responsive chromophore has reversible oxidation potentials at 0.17, 0.28, and 0.53 V vs Fc0/Fc+. D2PDN was found to be used as a photoredox catalyst.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135342863","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
Gelation of Hydrophilic Polymer Bearing Metal-Coordination Unit with Various Metal Ions 含金属配位单元的亲水聚合物与多种金属离子的凝胶化
4区 化学
Chemistry Letters Pub Date : 2023-09-28 DOI: 10.1246/cl.230347
Daisuke Nagai, Naoki Isobe, Yasuyuki Maki, Shusuke Okamoto
{"title":"Gelation of Hydrophilic Polymer Bearing Metal-Coordination Unit with Various Metal Ions","authors":"Daisuke Nagai, Naoki Isobe, Yasuyuki Maki, Shusuke Okamoto","doi":"10.1246/cl.230347","DOIUrl":"https://doi.org/10.1246/cl.230347","url":null,"abstract":"Gelation of a hydrophilic polymer bearing a metal-coordination unit with various metal ions was examined. Gels with different morphologies were formed depending on the metal ion species. The formation mechanism for these gels could be explained based on their cross-linking rates. Gelation in two-component solutions containing different ratios of PdII to other metal ions (AuIII and PtIV) was also investigated. Gelation of a hydrophilic polymer bearing a metal-coordination unit with various metal ions was examined. Gels with different morphologies were formed depending on the metal ion species. The formation mechanism for these gels could be explained based on their cross-linking rates. Gelation in two-component solutions containing different ratios of PdII to other metal ions (AuIII and PtIV) was also investigated.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135344093","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
Etching of TiO2(110) Single-Crystal Surface with Aniline for Step Direction Control 苯胺刻蚀TiO2(110)单晶表面的阶梯方向控制
4区 化学
Chemistry Letters Pub Date : 2023-09-27 DOI: 10.1246/cl.230334
Mami Takahari, Taiga Goto, Soichiro Yoshimoto, Toshihiro Kondo
{"title":"Etching of TiO<sub>2</sub>(110) Single-Crystal Surface with Aniline for Step Direction Control","authors":"Mami Takahari, Taiga Goto, Soichiro Yoshimoto, Toshihiro Kondo","doi":"10.1246/cl.230334","DOIUrl":"https://doi.org/10.1246/cl.230334","url":null,"abstract":"After subjecting a hydrofluoric acid treated and annealed TiO2(110) single-crystal substrate to immersion in an ethanol solution of aniline, a uniform step structure in the [001] direction was observed on the TiO2(110) surface without aniline. Since this finding is considered to control of the step direction on the TiO2(110) surface, the formed surface was discussed in detail and a model of the step line formation process was proposed. After immersing of TiO2(110) single-crystal substrate in an ethanol solution containing aniline, a uniform step structure in the [001] direction formed on the TiO2(110) surface although aniline was not existed. A reasonable model of the step line formation process was proposed. The present results lead to the novel method to control of the step direction on the TiO2(110) surface.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135477192","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
Unraveling the Interactions between Nanoparticles and Benzo[a]pyrene in Environmental Waters and Human Blood by Dissipative Particle Dynamics Simulations 耗散粒子动力学模拟揭示了环境水体和人体血液中纳米颗粒与苯并[a]芘之间的相互作用
4区 化学
Chemistry Letters Pub Date : 2023-09-22 DOI: 10.1246/cl.230337
Hainan Sun, Yingying Wang, Xiangan Meng, Manman Hu, Xin Yan
{"title":"Unraveling the Interactions between Nanoparticles and Benzo[a]pyrene in Environmental Waters and Human Blood by Dissipative Particle Dynamics Simulations","authors":"Hainan Sun, Yingying Wang, Xiangan Meng, Manman Hu, Xin Yan","doi":"10.1246/cl.230337","DOIUrl":"https://doi.org/10.1246/cl.230337","url":null,"abstract":"","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"332 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136010428","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
Pin-point surgery of proton-deuterium substitution to enhance polybenzimidazole thermoresistances 质子-氘取代的定点手术提高聚苯并咪唑的耐热性
4区 化学
Chemistry Letters Pub Date : 2023-09-22 DOI: 10.1246/cl.230315
Xianzhu Zhong, Aniruddha Nag, Jiabei Zhou, Kenji Takada, Motoyuki Kusano, Tatsuo Kaneko
{"title":"Pin-point surgery of proton-deuterium substitution to enhance polybenzimidazole thermoresistances","authors":"Xianzhu Zhong, Aniruddha Nag, Jiabei Zhou, Kenji Takada, Motoyuki Kusano, Tatsuo Kaneko","doi":"10.1246/cl.230315","DOIUrl":"https://doi.org/10.1246/cl.230315","url":null,"abstract":"Thermal stability plays a crucial role in determining the polymer suitability as high-performance thermoresistant materials, which are highly demanded for lightweight substitute to metal or ceramic materials in a sustainable society. We here present an innovative approach involving the in-situ substitution of imidazole protons of polybenzimidazole (PBI) derivatives with deuterium using deuterated solvents to enhance thermal stability. The resulting substituted polymers exhibited significantly higher thermal decomposition temperatures compared to their original counterparts. This notable improvement can be attributed to the N-D bond, which possesses a low stretching frequency, demanding a greater amount of activating energy compared to the N-H bond, enabling the polymer to withstand higher temperatures. This discovery presents a novel and promising avenue for enhancing polymer thermoresistance, providing valuable insights for the development of advanced materials with enhanced thermal stability. Pinpoint surgery through in situ isotopic proton-deuterium substitution significantly enhanced the thermal degradation temperature of polybenzoxazoles, this is because N-D bond exhibit a lower stretching frequency than N-H, demanding more activating energy and thus can withstand higher temperature. This discovery provides a novel and straightforward method to elevate thermostability for polymers.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136010427","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
Structure Identification of Dynamic Zinc(II)-Ligand Assemblies in Solution Based on Ligand Chirality 基于配体手性的溶液中动态锌(II)-配体组合的结构识别
4区 化学
Chemistry Letters Pub Date : 2023-09-15 DOI: 10.1246/cl.230353
Daiji Ogata, Junpei Yuasa
{"title":"Structure Identification of Dynamic Zinc(II)-Ligand Assemblies in Solution Based on Ligand Chirality","authors":"Daiji Ogata, Junpei Yuasa","doi":"10.1246/cl.230353","DOIUrl":"https://doi.org/10.1246/cl.230353","url":null,"abstract":"","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"203 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135354293","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
Formation of Novel Polycyclic Aromatic Compounds by Scholl Reactions of Di(1-anthryl) Ketones via Cyclization and Rearrangement 二(1-蒽基)酮经环化重排反应生成新型多环芳香族化合物
4区 化学
Chemistry Letters Pub Date : 2023-09-12 DOI: 10.1246/cl.230340
Shinji Toyota, Hiroshi Sekikawa, Hiroki Fukuda, Hiroshi Ikeda, Eiji Tsurumaki
{"title":"Formation of Novel Polycyclic Aromatic Compounds by Scholl Reactions of Di(1-anthryl) Ketones via Cyclization and Rearrangement","authors":"Shinji Toyota, Hiroshi Sekikawa, Hiroki Fukuda, Hiroshi Ikeda, Eiji Tsurumaki","doi":"10.1246/cl.230340","DOIUrl":"https://doi.org/10.1246/cl.230340","url":null,"abstract":"The Scholl reactions of di(1-anthryl) ketones were performed with chloranil under an acidic condition. The reaction of the parent ketone gave a cyclized product containing a seven-membered ring, which was enantiomerically separable. In contrast, the reaction of 4-(mesityloxy)-1-anthryl derivative mainly afforded an unexpected polycyclic aromatic ketone consisting of eight six-membered rings via skeletal rearrangement. The structure and properties of these products and the reaction mechanism are reported. Two di(1-anthryl) ketones gave different dehydrocyclization products upon treatment with chloranil. In particular, the (2,4,6-trimethylphenyl)oxy substituted derivative produced a novel aromatic ketone via unexpected skeletal rearrangement. This result is in contrast to that of the substituent free derivative, which formed a simple cyclization product with a helical structure.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135824872","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
Self-assembly of Peptide Amphiphiles with Alkyl Groups for siRNA Delivery 带有烷基的肽两亲体用于siRNA递送的自组装
4区 化学
Chemistry Letters Pub Date : 2023-09-12 DOI: 10.1246/cl.230302
Taufik F.N. Hakim, Kazunori Watanabe, Shomu Fujimoto, Mizuki Kitamatsu, Takashi Ohtsuki
{"title":"Self-assembly of Peptide Amphiphiles with Alkyl Groups for siRNA Delivery","authors":"Taufik F.N. Hakim, Kazunori Watanabe, Shomu Fujimoto, Mizuki Kitamatsu, Takashi Ohtsuki","doi":"10.1246/cl.230302","DOIUrl":"https://doi.org/10.1246/cl.230302","url":null,"abstract":"Based on the self-assembling amphiphilic peptide GAVILRR, we developed a peptide amphiphile bearing octanoyl and octaarginine groups that formed stable nanoparticles with siRNA delivery capabilities. The N-terminal addition of an octanoyl group reduced the particle size and polydispersity. The C-terminal polyarginine extension allowed the formation of nanoparticles with greater stability and smaller sizes with siRNA loading compared to those for the original and other variant peptides. The resulting peptide amphiphile PA8 effectively delivered siRNA into AsPC-1 pancreatic cancer cells. We developed a peptide amphiphile (PA) consisting of a hydrophobic alkyl chain, a hydrophobic GAVIL peptide, and a hydrophilic polyarginine. The existence of an alkyl chain promoted the self-assembly of PA to form nanoparticles. To the surface of nanoparticles, siRNA could be attached, producing positively charged nanocomplexes that effectively internalize into cancer cells.","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135824873","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 two-dimensional multi-functional macromonomer and oxygen permselectivity of its supramolecular and covalent polymer membranes 二维多功能大分子单体的合成及其超分子和共价聚合物膜的氧渗透选择性
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2023-09-09 DOI: 10.1246/cl.230341
Kehan Cheng, Ken-ichi Shinohara, Koichi Higashimine, M. Teraguchi, T. Kaneko, T. Aoki
{"title":"Synthesis of two-dimensional multi-functional macromonomer and oxygen permselectivity of its supramolecular and covalent polymer membranes","authors":"Kehan Cheng, Ken-ichi Shinohara, Koichi Higashimine, M. Teraguchi, T. Kaneko, T. Aoki","doi":"10.1246/cl.230341","DOIUrl":"https://doi.org/10.1246/cl.230341","url":null,"abstract":"","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44173098","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
Copper-mediated Trifluoromethylthiolation of Alkenyl Iodides with AgSCF3 铜介导的AgSCF3对烯基碘化物的三氟甲基硫基化反应
IF 1.6 4区 化学
Chemistry Letters Pub Date : 2023-09-09 DOI: 10.1246/cl.230335
Yuki Kojima, K. Hirano
{"title":"Copper-mediated Trifluoromethylthiolation of Alkenyl Iodides with AgSCF3","authors":"Yuki Kojima, K. Hirano","doi":"10.1246/cl.230335","DOIUrl":"https://doi.org/10.1246/cl.230335","url":null,"abstract":"","PeriodicalId":9862,"journal":{"name":"Chemistry Letters","volume":" ","pages":""},"PeriodicalIF":1.6,"publicationDate":"2023-09-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42588475","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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