ChemPhotoChem最新文献

Front Cover: Formation of a Hemispherical Droplet in a Temperature Responsive Ionic Liquid by Optical Tweezers (ChemPhotoChem 5/2025) 封面：用光镊在温度响应离子液体中形成半球形液滴（ChemPhotoChem 5/2025）

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-05-12 DOI: 10.1002/cptc.202580501

Rai Kobayashi, Prof. Dr. Yasuyuki Tsuboi, Dr. Ken-ichi Yuyama

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Front Cover: (ChemPhotoChem 4/2025) 封面：（ChemPhotoChem 4/2025）

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-04-08 DOI: 10.1002/cptc.202580401

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Front Cover: (ChemPhotoChem 3/2025) 封面：（ChemPhotoChem 3/2025）

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-03-11 DOI: 10.1002/cptc.202580301

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Front Cover: Covalent Organic Framework (COF) Based Catalysts for Photocatalytic Cross-Dehydrogenative Coupling Reactions (ChemPhotoChem 2/2025) 封面：基于共价有机框架（COF）的光催化交叉脱氢偶联反应催化剂（ChemPhotoChem 2/2025）

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-02-10 DOI: 10.1002/cptc.202580201

Jing Zhang, Bin Guo, Zhuo-Lin Tong, David J. Young, Hong-Xi Li

{"title":"Front Cover: Covalent Organic Framework (COF) Based Catalysts for Photocatalytic Cross-Dehydrogenative Coupling Reactions (ChemPhotoChem 2/2025)","authors":"Jing Zhang, Bin Guo, Zhuo-Lin Tong, David J. Young, Hong-Xi Li","doi":"10.1002/cptc.202580201","DOIUrl":"https://doi.org/10.1002/cptc.202580201","url":null,"abstract":"The Front Cover illustrates the micro-environments associated with photocatalytic cross-dehydrogenative coupling (CDC) reactions, wherein covalent organic frameworks (COFs) function as heterogeneous catalysts. COFs exhibit favorable photocatalytic activity in diverse chemical transformations, owing to their remarkable high crystallinity, excellent stability, and convenient recyclability. The CDC reactions represent an efficient and clean methodology for the formation of C-Nu (Nu = nucleophilic reagent) bonds through activation of C-H and Nu-H bonds, respectively. As expected, the robust COFs offer a highly versatile platform for heterogeneous photocatalytic CDC reactions. More information can be found in the Concept article by Bin Guo, David J. Young, Hong-Xi Li, and co-workers (DOI: 10.1002/cptc.202400274).\u0000 <figure>\u0000 <div><picture>\u0000 <source></source></picture>\u0000 </div>\u0000 </figure>\u0000 ","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 2","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202580201","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143380292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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Formation of a Hemispherical Droplet in a Temperature Responsive Ionic Liquid by Optical Tweezers 光镊在温度响应离子液体中形成半球形液滴

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-02-09 DOI: 10.1002/cptc.202400394

Rai Kobayashi, Prof. Dr. Yasuyuki Tsuboi, Dr. Ken-ichi Yuyama

引用次数: 0

Enhancing Spectral Coverage, Efficiency, and Photometric Accuracy in Ultrafast Fluorescence Upconversion Spectroscopy 在超快荧光上转换光谱中增强光谱覆盖、效率和光度准确性

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-02-03 DOI: 10.1002/cptc.202400398

Marco Kapitzke, Dr. Samuel Palato, Amar Raj, Dr. Tatu Kumpulainen, Prof. Dr. Julia Stähler

{"title":"Enhancing Spectral Coverage, Efficiency, and Photometric Accuracy in Ultrafast Fluorescence Upconversion Spectroscopy","authors":"Marco Kapitzke, Dr. Samuel Palato, Amar Raj, Dr. Tatu Kumpulainen, Prof. Dr. Julia Stähler","doi":"10.1002/cptc.202400398","DOIUrl":"https://doi.org/10.1002/cptc.202400398","url":null,"abstract":"Time-resolved fluorescence techniques are essential for studying the excited-state dynamics of molecules and materials, as well as their interactions with the surrounding media. Fluorescence upconversion provides femtosecond time resolution, but its limited spectral coverage often restricts its application. Broadband variants of fluorescence upconversion spectroscopy (FLUPS) offer improved spectral coverage but require balancing spectral bandwidth against signal strength. In this paper, we introduce a three-angle method (3-AM) for FLUPS designed to overcome these limitations. This method enhances spectral coverage, photometric accuracy, and signal-to-noise ratio by recording and averaging spectrally resolved upconversion signals at three distinct crystal angles. Unlike other techniques that rely on spectral reconstruction or continuous crystal rotation during acquisition, the 3-AM relies on fixed crystal positions, allowing for robust post-acquisition corrections. We validate the performance and reproducibility of the 3-AM by comparing it with the conventional fixed-angle approach, as well as through blind testing in two independent laboratories. Despite variations in experimental configuration, the 3-AM consistently produces reproducible spectral line shapes across the two setups. The enhanced performance and reliability demonstrate its practicality for laboratories with broadband FLUPS capabilities. Thus, the 3-AM is a valuable tool for investigating ultrafast radiative processes in previously inaccessible molecular and material systems.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 5","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-02-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202400398","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143938804","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Assembly of the Co-Catalysts of a Dual Photoredox/Hydrogen Atom Transfer Catalytic Process: Curiosity or Opportunity? 双光氧化还原/氢原子转移催化过程中共催化剂的自组装：好奇还是机遇？

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-01-28 DOI: 10.1002/cptc.202400406

Victor Carré, Jean-Marc Vincent

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Emissive Bovine Serum Albumin-Templated Osmium Nanoclusters: Synthesis and Optical Characterization 发射牛血清白蛋白模板纳米锇团簇：合成和光学表征

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-01-27 DOI: 10.1002/cptc.202400412

Mohammad Tavakkoli Yaraki, Aarti, Muhammad A. Zenaidee, Dechao Chen, Chao Shen, Qin Li, Koushik Venkatesan, Yuling Wang

{"title":"Emissive Bovine Serum Albumin-Templated Osmium Nanoclusters: Synthesis and Optical Characterization","authors":"Mohammad Tavakkoli Yaraki,  Aarti, Muhammad A. Zenaidee, Dechao Chen, Chao Shen, Qin Li, Koushik Venkatesan, Yuling Wang","doi":"10.1002/cptc.202400412","DOIUrl":"https://doi.org/10.1002/cptc.202400412","url":null,"abstract":"Synthesis of new nanomaterials with unique optical properties is of great importance in different fields such as energy, material science, and biomedicine. Here, for the first time, we report the synthesis of the emissive osmium nanoclusters (OsNCs) using bovine serum albumin (BSA) as template and sodium borohydride as strong reducing agent. The as-synthesized emissive OsNCs had only 31 atoms, with deep-blue color emission with an emission maximum at 415 nm and a photoluminescence quantum yield (PLQY) of 2.5 %. The fluorescence emission of OsNCs could be attributed to the smaller number of atoms (31) in the as-synthesized OsNCs in this work. The optical characterization of the emissive OsNCs revealed that the fluorescence intensity was more sensitive to pH than with temperature of the solution. When pH was increased from 1–12, there was 6-fold increase in the emission intensity. We believe that the presented synthesis route as well as the results of this work could open new avenues to further investigate the OsNCs as new emissive nanomaterials and their potential applications in biomedical and energy fields.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 5","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939580","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

The Multiple Facets of Oxalate Dianion in Photochemistry 草酸钠在光化学中的多面性

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-01-27 DOI: 10.1002/cptc.202400407

Dr. Camilla Russo, Carmine Volpe, Dr. Mariateresa Giustiniano

引用次数: 0

Recent Trends in Bioinspired Photocatalysis and Photoenzymatic Catalysis for CO2 Reduction to Formic Acid 生物激发光催化和光酶催化CO2还原为甲酸的最新进展

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-01-23 DOI: 10.1002/cptc.202400351

Fangshu Xing, Jingwen Bai, Minghui Zhang, Yuyin Mao, Prof. Jian Liu

{"title":"Recent Trends in Bioinspired Photocatalysis and Photoenzymatic Catalysis for CO2 Reduction to Formic Acid","authors":"Fangshu Xing, Jingwen Bai, Minghui Zhang, Yuyin Mao, Prof. Jian Liu","doi":"10.1002/cptc.202400351","DOIUrl":"https://doi.org/10.1002/cptc.202400351","url":null,"abstract":"The conversion of CO2 into fuels and chemical feedstocks represents a sustainable pathway to develop carbon-neutral economy. Typically, among the accessible C1 commodities, formic acid has been a critical liquid product of CO2 reduction as an essential chemical intermediate or hydrogen storage medium. However, the activity and selectivity regulation of CO2-to-HCOOH are still far from the scale implementation requirement due to both thermodynamic and kinetic challenges. Billions of years of evolution have allowed natural CO2 reductases to achieve CO2 selective utilization by their unique active sites surrounded by elaborate protein scaffolds, confined pockets for reaction intermediates, long-range electron and proton delivery chains, and hydrophobic CO2 transfer channels. Consequently, learning from formate dehydrogenase (FDH) may inspire novel design in artificial photosynthesis, including the reactive center, multilevel coordination microenvironments, substrate channel, and synergistic effect. Herein, recent works about biomimetic photocatalysis and photoenzymatic catalysis of CO2 valorization to HCOOH are summarized, which is hoped to lift the application of bioinspiration in highly selective CO2 reduction systems.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 5","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939641","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