Bulletin of the Chemical Society of Japan最新文献_第3页

Three-type Precursors for Low-Temperature Solution-Processed Void-and-Crack-Free CuI Films: Comparison of Electrical Conductivities and Optical Transparency 低温溶液加工的无空隙无裂缝 CuI 薄膜的三种前驱体：导电性和光学透明度的比较

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-07-11 DOI: 10.1093/bulcsj/uoae071

Manabu Ishizaki, Naoki Koya, Yoshitomo Gotoh, Kodai Muramatsu, Masato Kurihara

{"title":"Three-type Precursors for Low-Temperature Solution-Processed Void-and-Crack-Free CuI Films: Comparison of Electrical Conductivities and Optical Transparency","authors":"Manabu Ishizaki, Naoki Koya, Yoshitomo Gotoh, Kodai Muramatsu, Masato Kurihara","doi":"10.1093/bulcsj/uoae071","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae071","url":null,"abstract":"Copper iodide (CuI) is a wide-bandgap (colorless) p-type semiconductor with a high Seebeck coefficient. Although CuI is promising for fabricating transparent thermoelectric devices and hole-transfer layers of solar cells, the insolubility in common solvents due to 3-dimensional coordination networks has been a drawback to constructing low-temperature solution-processed thin films. Moreover, it is challenging to fabricate void-and-crack-free CuI thin films through a convenient spin-coating process. In limited solvents of acetonitrile and diethyl sulfide, CuI is dissolved by forming soluble CuI complexes; however, void-and-crack-free CuI thin films have never been prepared. In this study, we report that CuI-alkanolamine complexes are soluble in alcohols and the spin-coated complexes undergo thermal decomposition to a CuI thin film at moderately low temperatures until 150 °C. We discover that the CuI-alkanolamines show different properties such as solubility and melting/decomposition temperatures depending on their structures. Specifically, by using 1-amino-2-propanol, we obtain void-and-crack-free and transparent CuI thin films with controlled thicknesses of &gt;50 nm. The conductivity, carrier density, mobility, and Seebeck coefficient of the CuI thin film are 9.35 S·cm-1, 6.38×1019 cm-3, 0.96 cm2·V-1·S-1, and 192 µV･K-1, respectively.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Development of Nitrogen-doped Carbon Supported Metal Catalysts for Green Organic Synthesis 开发用于绿色有机合成的掺氮碳支撑金属催化剂

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-07-11 DOI: 10.1093/bulcsj/uoae076

Tomohiro Yasukawa

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Structure-Activity Relationship Studies on Iezoside, a Highly Potent Ca2+ ATPase Inhibitor 强效 Ca2+ ATP 酶抑制剂 Iezoside 的结构-活性关系研究

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-07-06 DOI: 10.1093/bulcsj/uoae070

Naoaki Kurisawa, Kazuya Teranuma, Akari Noto, Arihiro Iwasaki, Yoshiki Kabashima, Rie Nakajima, Chikashi Toyoshima, Kiyotake Suenaga

引用次数: 0

Discrete Polyketones: Synthesis, Derivatization, and Potential Applications 离散多酮类化合物：合成、衍生和潜在应用

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-07-04 DOI: 10.1093/bulcsj/uoae072

Yasuhide Inokuma

{"title":"Discrete Polyketones: Synthesis, Derivatization, and Potential Applications","authors":"Yasuhide Inokuma","doi":"10.1093/bulcsj/uoae072","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae072","url":null,"abstract":"The present account reviews recent progress in the synthesis, functionalization, and application of discrete polyketones. Whereas most polyketones are synthesized as polydisperse polymers with various molecular chain lengths and sizes, discrete polyketones are obtained in chemically pure forms. This allows precise structural analysis using NMR and X-ray diffraction. Discrete polyketones have been used to determine the critical chain length that distinguishes the crystallization behaviors of small molecules from those of macromolecules. Calix[3]pyrrole, which is a ring-contracted analogue of porphyrinogen, was first obtained from a cyclic hexaketone. The discovery of the strain-induced ring expansion reaction of calix[3]pyrroles has provided an important insight into solving a long-standing enigma in porphyrin synthesis. Chemical derivatization of discrete polyketones using ketone-derived transformations has resulted in the generation of various functional molecules for potential applications. These molecules have been used to develop several materials, including luminescent chromophores, ion adsorbents, drug–drug conjugates, and microfluidic devices for cancer diagnosis.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141548439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Experimental verification of double-four-ring-type aluminosilicate molecule as a single-source precursor for zeolite synthesis 双四环型硅酸铝分子作为沸石合成单源前驱体的实验验证

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-06-08 DOI: 10.1093/bulcsj/uoae060

Akira Imaizumi, Yurika Ohnishi, Akinobu Nakada, Akinori Honda, Takeshi Matsumoto, Kenji Katayama, Ho-Chol Chang

{"title":"Experimental verification of double-four-ring-type aluminosilicate molecule as a single-source precursor for zeolite synthesis","authors":"Akira Imaizumi, Yurika Ohnishi, Akinobu Nakada, Akinori Honda, Takeshi Matsumoto, Kenji Katayama, Ho-Chol Chang","doi":"10.1093/bulcsj/uoae060","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae060","url":null,"abstract":"\u0000 While a variety of functional zeolites have been synthesized using hydrothermal methods with conventional discrete Al and Si sources, control of the composition, structure, and function of the targeted zeolites often involves costly and time-consuming trial-and-error approaches. Despite ongoing efforts to manipulate zeolite formation by adjusting Al and Si sources and reaction conditions, limited attention has been given to studies on zeolite synthesis using molecular precursors (MPs) with pre-organized Al–O–Si bonds. Here, we demonstrate the synthesis of LTA-type zeolites using [TMA]4[Al4Si4O12(OH)8]·13H2O ([MP]; TMA = tetramethylammonium cation) with a double-four-ring (D4R)-type core structure, which is known to be a secondary building unit (SBU) in the LTA-type zeolite, as a MP. Here, we demonstrate the successful synthesis of LTA-type zeolites using [MP] under hydrothermal conditions at 100–200 °C in the presence of 1 equivalent of NaOH or NaCl. Notably, when discrete Al and Si sources were used instead of [MP] under otherwise identical conditions (the same Si/Al ratio, Na+ content, and temperature), GIS-, SOD-, and FAU-type zeolites lacking the D4R structure were obtained in addition to the LTA-type zeolites.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141369582","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Enhancement of Excimer Formation Ability by Modulating the Length of Side-Chains in Polyhedral Oligomeric Silsesquioxane (POSS) and Application for Fluorescence Sensors for Metal Cations 通过调节多面体低聚硅烷基二氧杂环（POSS）中侧链的长度增强准分子形成能力及其在金属阳离子荧光传感器中的应用

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-06-04 DOI: 10.1093/bulcsj/uoae066

Hayato Narikiyo, Masayuki Gon, Kazuo Tanaka, Y. Chujo

{"title":"Enhancement of Excimer Formation Ability by Modulating the Length of Side-Chains in Polyhedral Oligomeric Silsesquioxane (POSS) and Application for Fluorescence Sensors for Metal Cations","authors":"Hayato Narikiyo, Masayuki Gon, Kazuo Tanaka, Y. Chujo","doi":"10.1093/bulcsj/uoae066","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae066","url":null,"abstract":"\u0000 Polyhedral oligomeric silsesquioxane (POSS) is a molecule with an inorganic cubic structure and organic side-chains and has attracted great attention for its application to luminescent materials by modifying luminophores. In this study, pyrenes-integrated POSSs with various lengths of side-chains were synthesized and the effect of the length on luminescent properties was evaluated. In optical measurements, highly efficient excimer emission was observed under dilute solution conditions. The higher value of the intensity ratio of the excimer emission to the monomer one was detected in the shortest side-chains. It is likely that the shorter side-chains of POSS lead to more efficient intramolecular interaction. Interestingly, we also found that the luminescence color was changed in response to metal cations in the dilute solutions. From the mechanistic study, metal cations such as Cu2+ can accelerate hydrolysis at the linker moiety. As a result, highly-sensitive luminescent sensors were obtained. These data represent that POSS can work as a reaction field where chemical reactions are accelerated through the accumulation of reactive species.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141387077","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Clusterization-Triggered Emission of Polysaccharide-based Microclusters induced by the Co-assembly of Chitosan nanofibers and Dialdehyde carboxymethyl cellulose 壳聚糖纳米纤维与二醛羧甲基纤维素共组装诱发的多糖基微集束物的集束化-诱发发射

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-06-04 DOI: 10.1093/bulcsj/uoae065

Madhurangika Panchabashini Horathal Pedige, Akihide Sugawara, Hiroshi Uyama

{"title":"Clusterization-Triggered Emission of Polysaccharide-based Microclusters induced by the Co-assembly of Chitosan nanofibers and Dialdehyde carboxymethyl cellulose","authors":"Madhurangika Panchabashini Horathal Pedige, Akihide Sugawara, Hiroshi Uyama","doi":"10.1093/bulcsj/uoae065","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae065","url":null,"abstract":"\u0000 The emerging non-aromatic and non-conjugated clusteroluminogens possess the potential to overcome the common drawbacks of aromatic π-conjugated luminophores such as aggregation-caused quenching, synthetic complexity, bio-toxicity, and environmental pollution. Because of the presence of heteroatoms and carbonyl functional groups, some natural polymers show potential as clusteroluminogens. In this study, co-assembled micro-clusters (MCs) were fabricated using chitosan nanofibers (CSNFs) cross-linked with dialdehyde carboxymethyl cellulose (DACMC). MCs form stable structures under aqueous conditions owing to the formation of cross-links via imine bonds, ionic interactions, and hydrogen bonds between the polysaccharides. These multiple interactions and the heteroatomic nature of both CSNFs and DACMC enable the realization of clusterization-triggered emission (CTE) by through-space conjugation. MCs exhibit stable fluorescence behavior under aqueous conditions. A composite gel of MCs and poly(vinyl alcohol) (PVA) (PVA-MCs) was synthesized using the freeze-thaw method to develop CTE hydrogel. The MCs and PVA-MCs gels demonstrated the detection ability toward specific metal ions such as Cu2+ and Fe3+, by the quenching of the emission. This strategy for the creation of CTE MCs based on cross-linked polysaccharides widens the scope of the practical and sustainable application of water-containing fluorescent materials in the fields of sensing and biomedicines.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141266857","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Solution-processed ZnO thin film with high-density quantum dots via particle size control strategy 通过粒度控制策略实现具有高密度量子点的溶液加工氧化锌薄膜

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-06-01 DOI: 10.1093/bulcsj/uoae062

Liubin Zheng, Nozomi Yunoki, Nana Suzuki, Kenji Ogino

{"title":"Solution-processed ZnO thin film with high-density quantum dots via particle size control strategy","authors":"Liubin Zheng, Nozomi Yunoki, Nana Suzuki, Kenji Ogino","doi":"10.1093/bulcsj/uoae062","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae062","url":null,"abstract":"\u0000 Solution-derived ZnO quantum dot is one of the most widely used electron-transport layers in optoelectronic devices. To achieve high-efficiency in optoelectronic devices it is required that a thin film of ZnO quantum dot with low surface roughness and low defect intensity is developed. Herein, alcoholic solvents with different alkyl lengths were utilized to dissolve tetramethylammonium hydroxide to fine-tune the polarity of the solution, to achieve ZnO quantum dots with controllable particle size and monodisperse in alcohol solvents. Two kinds of ZnO quantum dots with particle sizes of 6 and 12 nm detected by dynamic light scattering were successfully prepared by this method. Furthermore, by mixing these two types of quantum dots, ZnO films with a different packing mode were fabricated, which exhibited lower surface defect density and surface roughness. This approach offers a novel pathway to reduce issues such as current leakage associated with ZnO as an electron-transport layer. What's more, the small particle size ZnO quantum dots effectively fill the gaps between the large particle size quantum dots, resulting in a film with a higher density of quantum dots. This increased density contributes to the higher electrical conductivity of the ZnO film.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141408264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Post-synthetic modification of near-infrared absorbing cyclodextrin-encapsulated cyanine dyes for controlling absorption wavelength, stability, and singlet oxygen generation 为控制吸收波长、稳定性和单线态氧生成而对近红外吸收环糊精封装氰基染料进行合成后修饰

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-06-01 DOI: 10.1093/bulcsj/uoae055

Huimin Zhang, Yoichi Masui, H. Masai, J. Terao

{"title":"Post-synthetic modification of near-infrared absorbing cyclodextrin-encapsulated cyanine dyes for controlling absorption wavelength, stability, and singlet oxygen generation","authors":"Huimin Zhang, Yoichi Masui, H. Masai, J. Terao","doi":"10.1093/bulcsj/uoae055","DOIUrl":"https://doi.org/10.1093/bulcsj/uoae055","url":null,"abstract":"\u0000 In this study, near-infrared absorbing rotaxane-type cyanine dyes exhibit high tolerance to various chemical reactions, which is attributed to the encapsulation effect of their cyclic molecules. As a result, rotaxane dyes can be post-modified on the host α-cyclodextrin or guest cyanine skeleton to adjust their solubility, absorption wavelength, stability, and singlet oxygen generation ability. The guest modification product obtained via the Heck reaction demonstrates a red shift of its absorption wavelength owing to the extended conjugation system. Moreover, the products of host modification through the methylation and benzylation of all cyclodextrin hydroxyl groups not only become lipophilic and show extended absorption, but also exhibit higher photooxidation tolerance, lower singlet oxygen generation rate, and increased singlet oxygen tolerance, indicating their potential applicability as highly durable dyes. Furthermore, the outstanding singlet oxygen tolerance of these dyes enables their use in long-life singlet oxygen generators, in which the total amount of singlet oxygen increases. This work demonstrates that an intrinsically unstable near-infrared cyanine dye can be used as a synthetic intermediate by stabilizing it via α-cyclodextrin encapsulation, allowing the post-modification of various properties of cyanine dyes toward the higher-order near-infrared-absorbing materials with complex functionalities and diverse utilities.","PeriodicalId":9511,"journal":{"name":"Bulletin of the Chemical Society of Japan","volume":null,"pages":null},"PeriodicalIF":4.0,"publicationDate":"2024-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141278709","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Retraction of: Direct Joining of a Heterogeneous Pair of Supramolecular Nanotubes and Reaction Control of a Guest Compound by Transportation in the Nanochannels 撤回：一对异质超分子纳米管的直接连接和客体化合物在纳米通道中的迁移反应控制

IF 4 3区化学

Bulletin of the Chemical Society of Japan Pub Date : 2024-06-01 DOI: 10.1093/bulcsj/uoae059

引用次数: 0