ChemPlusChem最新文献

Sumanene-Conjugated Poly(amidoamine) Dendrimer for the Detection of Metal Cations in Aqueous Solution. 苏蔓烯共轭聚氨基胺树状大分子对水溶液中金属阳离子的检测。

IF 2.8 4区化学

ChemPlusChem Pub Date : 2025-07-28 DOI: 10.1002/cplu.202500426

Łukasz Kurowski, Jakub S Cyniak, Hidehiro Sakurai, Artur Kasprzak

{"title":"Sumanene-Conjugated Poly(amidoamine) Dendrimer for the Detection of Metal Cations in Aqueous Solution.","authors":"Łukasz Kurowski, Jakub S Cyniak, Hidehiro Sakurai, Artur Kasprzak","doi":"10.1002/cplu.202500426","DOIUrl":"https://doi.org/10.1002/cplu.202500426","url":null,"abstract":"Chemistry and applications of sumanene derivatives as molecular receptors of cations have been an area of interest in applied supramolecular chemistry of this buckybowl. Notably, creating sumanene-based receptors enabling the detection of alkali metals in purely aqueous solutions has been a vital challenge. This work reports the design of sumanene conjugate with poly(amidoamine) dendrimer (PAMAM; generation 2.0). The designed dendrimer was found to be highly water-dispersible and was tested for the first time as an optical receptor of metal cations in aqueous solution, with the selectivity found for cesium (Cs+) or sodium (Na+) cations. The association constants for noncovalent complexes formed via dynamic cation-π interactions between the sumanene bowl and Cs+/Na+ in water in aqueous solution are found to be comparable (at the level of 104-105 M-1) to those observed in analogous systems containing a significant volume of organic solvents. The bowl-shape of sumanene is also found to provide improved detection properties of the resultant receptor compared to the respective PAMAM dendrimer modified with planar triphenylene. It is believed that the findings of this work will further stimulate the field of sumanene-based receptors, as well as the chemistry of water-soluble buckybowls in general.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2500426"},"PeriodicalIF":2.8,"publicationDate":"2025-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144726226","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

Benzimidazo[1,2-c]Quinazolines Luminescent Materials: Synthesis, Molecular Packing, and Aggregation Effects. 苯并咪唑[1,2-c]喹唑啉类发光材料的合成、分子堆积及聚集效应

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-25 DOI: 10.1002/cplu.202500349

Chunhua Zhang, Bowen Li, Peige Qin, Yanhu Wang, Jiangpei Yuan, Qilong Bian

{"title":"Benzimidazo[1,2-c]Quinazolines Luminescent Materials: Synthesis, Molecular Packing, and Aggregation Effects.","authors":"Chunhua Zhang, Bowen Li, Peige Qin, Yanhu Wang, Jiangpei Yuan, Qilong Bian","doi":"10.1002/cplu.202500349","DOIUrl":"https://doi.org/10.1002/cplu.202500349","url":null,"abstract":"The introduction of N atoms can effectively modulate the electronic structure of molecular materials, resulting in superior optoelectronic properties. In this study, a class of benzimidazo[1,2-c]quinazoline derivatives with aggregation-induced emission (AIE) enhancement (AIEE) activity is reported. The core scaffold is a benzimidazo[1,2-c]quinazoline core and a near-vertical core of benzene rings substituted at the C6 position. By changing the substituents of the aryl ring on C6, it is possible not only to change the position of the electron distribution on the molecular backbone but also to redshift the maximum fluorescence emission wavelength by 93 nm. Computational and single-crystal results show that the molecules exhibit state-dependent photophysical properties upon aggregation with abundant cross-space interactions (π-dimer between two quinazoline planar backbones, multiple N···H-Ar hydrogen bonds, van der Waals forces, etc.), and these multiple interactions not only extend the electron-conjugated system but also stabilize the conformation of the molecule after aggregation and enhance the fluorescence intensity.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2500349"},"PeriodicalIF":3.0,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144705891","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

Correction to "Gallium(III) Amide Corroles: DNA Interaction and Photodynamic Activity in Cancer Cells". 修正“镓（III）酰胺的协同作用：肿瘤细胞中的DNA相互作用和光动力活性”。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-24 DOI: 10.1002/cplu.202500427

引用次数: 0

Studying the Effect of Mn²⁺ Doping on Structural and Photophysical Properties of Morpholinium Lead Bromide Perovskite. 掺杂Mn2+对溴化铅钙钛矿结构和光物理性质影响的研究。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-23 DOI: 10.1002/cplu.202500241

Vishal Singh, Joydeep Dhar

{"title":"Studying the Effect of Mn2+ Doping on Structural and Photophysical Properties of Morpholinium Lead Bromide Perovskite.","authors":"Vishal Singh, Joydeep Dhar","doi":"10.1002/cplu.202500241","DOIUrl":"https://doi.org/10.1002/cplu.202500241","url":null,"abstract":"Organic-inorganic lead halide perovskite is under intense focus on developing different optoelectronic devices because of its exceptional optical and electrical properties and ease of processing. However, the Pb2+ toxicity and the luminescence instability of these classes of semiconductors require continuous development of newer luminescent variants. Herein, Mn2+ is used as a dopant in luminescent morpholinium lead bromide perovskite, (C4H10NO)PbBr3, to substitute Pb2+ with Mn2+ with varied doping percentage to develop two different analogs of Mn2+-doped (C4H10NO)PbBr3 with varied optical properties. The incorporation of the dopant ion is investigated using various characterization techniques like inductively coupled plasma-optical emission spectroscopy, single-crystal and powder X-ray diffraction, infrared, and electron paramagnetic resonance spectroscopies. The photophysical properties are characterized by absorption and emission spectroscopies. With the increase in Mn2+-dopant amount, the emission maxima showed a blueshift with respect to the pristine sample and exhibited an enhanced (about 40%) photoluminescence quantum yield. Finally, the possibility of utilizing these semiconductors for practical applications is conducted by studying the structural and photophysical properties after embedding them into an optically transparent polymer, polymethyl methacrylate.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2500241"},"PeriodicalIF":3.0,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688463","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

Correction to "Borophene: Synthesis, Chemistry, and Electronic Properties". 更正“硼罗芬：合成、化学和电子性质”。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-21 DOI: 10.1002/cplu.202500443

引用次数: 0

Evaluating the Aqueous Stability of Alkyl-/Aryl-Hydrosilanes by NMR Spectroscopy and GC-MS. 用核磁共振光谱和气相色谱-质谱法评价烷基/芳基氢硅烷的水稳定性。

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-21 DOI: 10.1002/cplu.202500310

Fawwaz Azam, Marc J Adler

{"title":"Evaluating the Aqueous Stability of Alkyl-/Aryl-Hydrosilanes by NMR Spectroscopy and GC-MS.","authors":"Fawwaz Azam, Marc J Adler","doi":"10.1002/cplu.202500310","DOIUrl":"https://doi.org/10.1002/cplu.202500310","url":null,"abstract":"Hydrosilanes are commonly used as reducing agents or as synthetic precursors for silanols. However, the incorporation of hydrosilanes as carbon bioisosteres is underexplored. In this study, the hydrolytic stability of ten variably substituted hydrosilanes-including monoaryl, monoalkyl, diaryl, dialkyl, alkyl aryl, triaryl, trialkyl, dialkyl aryl, and alkyl diaryl silanes-is investigated using five complementary methods, including 1H-NMR time-lapse and GC-MS experiments, at neutral pH. The 1H-NMR time-lapse experiments suggest that monoaryl and monoalkyl silanes are susceptible to hydrolysis, as evidenced by 31% and 22% reduction in starting material, respectively, over 24 h. Other investigated silanes are resistant to hydrolysis in these solvent systems for at least 24 h. The GC-MS experiments quantitatively support the respective reactivity of these hydrosilanes at pH 7. Lastly, the reactivity of selected hydrosilanes is evaluated at pH 7.4 phosphate-buffered saline buffer; only monoalkyl silanes degraded in the presence of the added salt content. Overall, the study demonstrates that hydrosilanes exhibit hydrolytic stability at neutral pH, except for monoaryl- and monoalkyl-substituted silanes, which are susceptible to degradation. The results provide insight into the likelihood of the SiH bond surviving in aqueous environments, opening the door for a wider variety of silicon-containing molecules in drug discovery.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2500310"},"PeriodicalIF":3.0,"publicationDate":"2025-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673484","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

Enhanced CO₂ Adsorption on CeO₂/SBA-15: The Key Role of Oxygen Vacancies. CeO2/SBA-15对CO2的增强吸附：氧空位的关键作用

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-16 DOI: 10.1002/cplu.202500288

Danilo W Losito, Jessica A F Pedro, Luís C Cides-da-Silva, Matheus C R Miranda, Animesh Dutta, Rafael M Santos, Tereza S Martins

{"title":"Enhanced CO2 Adsorption on CeO2/SBA-15: The Key Role of Oxygen Vacancies.","authors":"Danilo W Losito, Jessica A F Pedro, Luís C Cides-da-Silva, Matheus C R Miranda, Animesh Dutta, Rafael M Santos, Tereza S Martins","doi":"10.1002/cplu.202500288","DOIUrl":"https://doi.org/10.1002/cplu.202500288","url":null,"abstract":"This study investigates the role of oxygen vacancies in the CO2 adsorption and desorption dynamics of SBA-15:CeO2 nanocomposites synthesized by direct (DS) and postsynthesis (PS) methods. Physicochemical analyses reveal that the DS method increases the concentration of oxygen vacancies and structural defects within the CeO2 framework, which significantly boosts CO2 adsorption capacity and strengthens the gas-surface interactions. Among the materials, S_Ce4.a demonstrates the highest adsorption capacity, reaching 29.4 mg g- 1 at 25 °C and 10.7 mg g-1 at 70 °C. These results indicate a physisorption mechanism governed by both thermal conditions and oxygen vacancies. Furthermore, S_Ce4.a and S_Ce10.a. exhibit remarkable stability over 20 adsorption-desorption cycles. The findings suggest that a lower cerium oxide content provides more accessible adsorption sites, making these materials promising candidates for high-performance. Overall, this work highlights synergistic interplay between oxygen vacancies and mesoporous structures, paving the way for the rational design of advanced materials for CO2 capture technologies.","PeriodicalId":148,"journal":{"name":"ChemPlusChem","volume":" ","pages":"e2500288"},"PeriodicalIF":3.0,"publicationDate":"2025-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144641326","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

Cover Feature: Corrosion of Steel Strings on Historical Musical Instruments Triggered by the Emissions of Degrading Cellulose Nitrate (ChemPlusChem 7/2025) 封面特征：由降解硝酸盐纤维素排放引发的历史乐器钢弦腐蚀（ChemPlusChem 7/2025）

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-15 DOI: 10.1002/cplu.202580702

Vera Milena de Bruyn-Ouboter, Hartmut Kutzke, Shannen Thora Lea Sait, Henrik Friis, Maciej Krzywiecki, Andreas Erbe

引用次数: 0

Cover Feature: Controlling Lampenflora in Heritage Sites: In Situ Testing of Polyoxometalate–Ionic Liquids in the Pommery Champagne Cellar (ChemPlusChem 7/2025) 封面专题：控制文化遗产中的蓝茅草：在Pommery香槟酒窖中对多金属氧酸离子液体的原位测试（ChemPlusChem 7/2025）

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-15 DOI: 10.1002/cplu.202580703

Stéphanie Eyssautier-Chuine, Ludovic Besaury, Nathalie Vaillant-Gaveau, Sandra Villaume, Anouck Habrant, Isabel Franco-Castillo, Marine Rondeau, Dina Aggad, Maxime Gommeaux, Gilles Fronteau, Scott G. Mitchell

引用次数: 0

IF 3 4区化学

ChemPlusChem Pub Date : 2025-07-15 DOI: 10.1002/cplu.202500318

Konstantina Yannakopoulou, Yannis G. Lazarou, Evangelos Gogolides

引用次数: 0