ChemPhotoChem最新文献

Front Cover: Role of Ion-Pair and H-Bonding in Colorimetric Detection of Insulin Fibrils with Picomolar Sensitivity (ChemPhotoChem 9/2025) 封面：离子对和氢键在皮摩尔灵敏度比色法检测胰岛素原纤维中的作用（ChemPhotoChem 9/2025）

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-09-22 DOI: 10.1002/cptc.70039

Ayentika Sen, Aruna K. Mora, Soumitra Kundu, Sukhendu Nath

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Light-Emitting Diodes as Wireless Optical Transducers of Chemical Information 发光二极管作为化学信息的无线光传感器

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-22 DOI: 10.1002/cptc.202500050

Marine Lavainne, Leslie R. Arias-Aranda, Neso Sojic, Laurent Bouffier, Alexander Kuhn, Gerardo Salinas

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Star-Shaped Fluorescent Porphyrins with Impressive Two-Photon-Absorption Cross-Sections for Oxygen Sensitization: The Impact of Periphery-Conjugated Electron-Releasing Groups 具有令人印象深刻的双光子吸收截面的星形荧光卟啉氧敏化：外周共轭电子释放基团的影响

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-01 DOI: 10.1002/cptc.202500086

Limiao Shi, Shushen Chi, Viktoriia Gorbunova, Nicolas Richy, Mireille Blanchard-Desce, Olivier Mongin, Frédéric Paul, Christine O. Paul-Roth

{"title":"Star-Shaped Fluorescent Porphyrins with Impressive Two-Photon-Absorption Cross-Sections for Oxygen Sensitization: The Impact of Periphery-Conjugated Electron-Releasing Groups","authors":"Limiao Shi, Shushen Chi, Viktoriia Gorbunova, Nicolas Richy, Mireille Blanchard-Desce, Olivier Mongin, Frédéric Paul, Christine O. Paul-Roth","doi":"10.1002/cptc.202500086","DOIUrl":"10.1002/cptc.202500086","url":null,"abstract":"While pursuing the exploration of porphyrin/fluorene combinations at the molecular level and their application as luminescent photosensitizers for two-photon photodynamic therapy (2P-PDT), we wondered about the impact of adding electron-releasing endgroups to these molecular structures. Furthermore, we also wondered about the influence of spacers within the arms of these star-shaped architectures and about the impact of the metalation of these free-base porphyrins by zinc. To address these questions, we synthesized a series of ten novel star-shaped meso-tetraarylporphyrins, featuring various aromatic rings with 1,2-ethenyl fluorenyl and/or 1,2-ethynyl spacers, capped by diphenylamine endgroups. The linear and nonlinear optical properties of these compounds were characterized through absorption, emission, and two-photon excited fluorescence studies, thereby screening the impact of endgroups, metalation and arm composition on the optical parameters of interest. Subsequently, their singlet oxygen-photosensitizing properties were also evaluated. The enhanced properties observed for compounds presenting diphenylamino (DPA) endgroups in comparison to analogs with none, along with the impact of metalation by Zn(II) and that of 1,2-ethenyl versus 1,2-ethynyl linkers on these, were eventually analyzed using classical figures of merit. This contribution highlights the strong potential of DPA-capped star-shaped free-base porphyrins as fluorescent photosensitizers for combined 2P-PDT and imaging applications.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111206","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

Mechanistic Investigations of Photocatalytic Systems by Pump-Pump-Probe Spectroscopy 光催化体系的泵-泵-探针光谱机理研究

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-30 DOI: 10.1002/cptc.202500113

Daniel H. Cruz Neto, Thomas Pino, Minh-Huong Ha-Thi

{"title":"Mechanistic Investigations of Photocatalytic Systems by Pump-Pump-Probe Spectroscopy","authors":"Daniel H. Cruz Neto, Thomas Pino, Minh-Huong Ha-Thi","doi":"10.1002/cptc.202500113","DOIUrl":"10.1002/cptc.202500113","url":null,"abstract":"Understanding the mechanism through which a photochemical reaction proceeds grants access to thermodynamic and kinetic parameters that allow its optimization for large-scale applications. In the last few years, photocatalytic systems have been major players in scientific developments on research fields of primary importance, including solar fuel generation in artificial photosynthesis, and the use of excited organic radical ions as photocatalysts in thermodynamically challenging reactions of utmost synthetic relevance. Generally, time-resolved spectroscopic approaches are the main experimental tools to investigative the dynamics of photoactive systems, with pump-probe-based ones being the golden standard in photophysical and photochemical research. However, for photocatalytic systems in which multiple photons are required, which is generally the case for photosynthetic reactions and those promoted by excited organic radical ions, the pump-probe approach is no longer sufficient since it is based on a single photon-to-electron ratio. This is where a second actinic pump excitation comes into play in what is known as pump-pump-probe spectroscopy. In this review, we explore how this approach is used to unravel the mechanism of photocatalytic systems triggered by light using different probes of UV–vis absorption and resonance Raman scattering in varying time scales.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500113","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111315","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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Enhancement on Visible Light-Induced Cyclization Reactivity of a Diarylethene–Perylenebisimide Dyad by Incorporating Heavy Atom Effect with El-Sayed Rule 用El-Sayed规则结合重原子效应增强二乙烯-苝酰亚胺复合物的可见光诱导环化反应活性

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-30 DOI: 10.1002/cptc.202500103

Kana Tsuruta, Koya Taruno, Tadashi Yonahara, Sunnam Kim, Shinji Hamada, Satoshi Yokojima, Tsuyoshi Fukaminato

{"title":"Enhancement on Visible Light-Induced Cyclization Reactivity of a Diarylethene–Perylenebisimide Dyad by Incorporating Heavy Atom Effect with El-Sayed Rule","authors":"Kana Tsuruta, Koya Taruno, Tadashi Yonahara, Sunnam Kim, Shinji Hamada, Satoshi Yokojima, Tsuyoshi Fukaminato","doi":"10.1002/cptc.202500103","DOIUrl":"10.1002/cptc.202500103","url":null,"abstract":"A visible light photoswitchable diarylethene–perylenebisimide (DAE–PBI) dyad, incorporating bromine heavy atoms and a ketone linker in the molecular framework, is developed. In order to enhance the visible light-induced cyclization reactivity of a DAE–PBI dyad, in this study, an “internal heavy atom effect” with the “El-Sayed rule” into the molecular design is incorporated. From the theoretical calculation on the contribution ratio of bromine atoms to the molecular orbital (MO) in lowest unoccupied molecular orbitals (LUMOs) and the value of spin–orbit coupling, it is expected that the designed DAE–PBI dyad has high reactivity for visible light-induced cyclization reactions. The synthesized dyad exhibits efficient visible light-induced cyclization reaction not only in heavy atom-containing solvents but also in typical heavy atom-free solvents. These results indicate that the combination of the internal heavy atom effect and the El-Sayed rule effectively contributes to the visible light-induced cyclization reactivity in the dyad. These results will pave the way for new molecular designs to develop UV-free photoswitchable molecules.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111332","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}

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Synergistic Effects of Siloxy and Silylmethoxy Moieties on Room-Temperature Phosphorescence of 1,4-Dibenzoylbenzene Luminophores 硅氧基和硅基甲氧基基团对1,4-二苯甲酰苯发光团室温磷光的协同效应

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-29 DOI: 10.1002/cptc.202500069

Masaki Shimizu, Yui Tosabayashi, Maya Nakagawa, Tsukasa Kawamura, Tsuneaki Sakurai, Hiroshi Sakaguchi

{"title":"Synergistic Effects of Siloxy and Silylmethoxy Moieties on Room-Temperature Phosphorescence of 1,4-Dibenzoylbenzene Luminophores","authors":"Masaki Shimizu, Yui Tosabayashi, Maya Nakagawa, Tsukasa Kawamura, Tsuneaki Sakurai, Hiroshi Sakaguchi","doi":"10.1002/cptc.202500069","DOIUrl":"10.1002/cptc.202500069","url":null,"abstract":"Rare-metal-free luminophores that exhibit room-temperature phosphorescence (RTP) in the solid state and polymer film have attracted significant attention in various fields, including imaging, sensing, and optoelectronic technologies. Herein 1,4-dibenzolyl-2-siloxy-5-(silylmethoxy)benzenes are reported as novel RTP luminophores. Thermal analysis reveals that the unsymmetrical molecular structure of the benzene derivatives results in lower melting points compared to their symmetrical counterparts. Their solid-state RTP is highly dependent on the siloxy group. The choice of tert-BuPh2SiO group is essential for achieving efficient RTP in the microcrystalline state; the quantum yields ranged from 0.40 to 0.58, unlike the choice of tert-BuMe2SiO. Notably, poly(methyl methacrylate) films doped with the benzene derivatives emitted RTP under vacuum conditions with quantum yields ranging from 0.06 to 0.09, irrespective of the siloxy group. Theoretical calculations suggest that the RTP occurs via excitation involving intramolecular charge-transfer from the siloxy and silylmethoxy moieties to the benzoyl groups, followed by intersystem crossing from the lowest singlet excited state (S1) to the second-lowest triplet excited state (T2), and subsequent internal conversion to the lowest excited triplet state (T1). Furthermore, the polymer film doped with one of the benzene derivatives is demonstrated to function as a molecular oxygen scavenger within a polymer matrix.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111293","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}

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Supramolecular White-Light Emission Controlled by Regulation of Host–Guest Interaction, Illumination, and Slight Förster Resonance Energy Transfer 主客体相互作用、照明和轻微Förster共振能量转移调控的超分子白光发射

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-29 DOI: 10.1002/cptc.202500095

Qian Zhang, Hongyue Gao, Dongxia Liu, Abduhalik Kadir, Abolajiang Maimaitimin, Man Zhu, Jing Zeng, Yanqing Fan, Abudu Rexit Abulikemu

{"title":"Supramolecular White-Light Emission Controlled by Regulation of Host–Guest Interaction, Illumination, and Slight Förster Resonance Energy Transfer","authors":"Qian Zhang, Hongyue Gao, Dongxia Liu, Abduhalik Kadir, Abolajiang Maimaitimin, Man Zhu, Jing Zeng, Yanqing Fan, Abudu Rexit Abulikemu","doi":"10.1002/cptc.202500095","DOIUrl":"10.1002/cptc.202500095","url":null,"abstract":"In this study, it develops a series of slight Förster resonance energy transfer (FRET) systems incorporating donors (DP5 or the mixture of DP5 and PZ-Br) and acceptors (PZ-Br or Rh-COOH) through host–guest interactions. Within these FRET systems, the energy transfer efficiency reaches up to 58%. Notably, by precisely tuning the self-assemblies between the donors (DP5 or the mixture of DP5 and PZ-Br) and acceptors (PZ-Br or Rh-COOH), this study achieves tunable multicolor emissions without the need for complex synthesis or structural modifications. Most importantly, irradiating the FRET system containing the mixture of DP5 and PZ-Br and excess Rh-COOH with a 365 nm lamp for 45 min results in a system capable of tuning fluorescence from pink to pure white or even yellow. Furthermore, these FRET systems can be employed in the fabrication of white-light fluorescent films. These recent findings highlight an additional and promising application of Pillar[n]arenes in the development of white-light emission materials.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111291","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}

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Synthesis and Evaluation of Silicon-Containing Acridine Photocatalysts 含硅吖啶光催化剂的合成与评价

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-29 DOI: 10.1002/cptc.202500138

Liubov O. Kupriyanets, Mikhail O. Zubkov, Mikhail D. Kosobokov, Alexander D. Dilman

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Enhancing the Water-Resistant Performance of Organic Room-Temperature Phosphorescence Materials 提高有机室温磷光材料的防水性能

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-29 DOI: 10.1002/cptc.202500129

Huan Chen, Long Gu

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MXene-Derived g-C3N5/TiO2/Ti3C2 Nanoheterostructure Activated by Peroxymonosulfate for Photocatalytic Tetracycline Degradation under Visible Light 过氧单硫酸盐活化mxene衍生g-C3N5/TiO2/Ti3C2纳米异质结构在可见光下光催化降解四环素

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-06-24 DOI: 10.1002/cptc.202500065

Yuan Bai, Jie Liu, Weiting Huang, Xintong Shen, Haoyu Zheng, Kexin Hu

{"title":"MXene-Derived g-C3N5/TiO2/Ti3C2 Nanoheterostructure Activated by Peroxymonosulfate for Photocatalytic Tetracycline Degradation under Visible Light","authors":"Yuan Bai, Jie Liu, Weiting Huang, Xintong Shen, Haoyu Zheng, Kexin Hu","doi":"10.1002/cptc.202500065","DOIUrl":"10.1002/cptc.202500065","url":null,"abstract":"Photocatalysis-assisted peroxymonosulfate (PMS) activation is a promising technology for the degradation of antibiotics in water remediation. Herein, MXene-derived oxide (TiO2) and g-C3N5 Z-scheme ternary heterojunction photocatalytic composite materials are synthesized using an electrostatic self-assembly approach and characterized. The optimized g-C3N5/TiO2/Ti3C2 (CNTT) heterostructure demonstrates exceptional photocatalytic activity for tetracycline (TC) removal, achieving 90% degradation within 60 min at an optimal g-C3N5:TiO2/Ti3C2 mass ratio of 3:2. Remarkably, the system exhibits broad pH adaptability (80.8–96.3% TC removal across pH 2–12), overcoming the pH sensitivity limitations of traditional PMS-based processes. Mechanistic investigations reveal a synergistic photocatalysis-PMS activation pathway, with quenching experiments confirming <math></math>, ·OH, ·<math></math>, and 1O2, as dominant reactive species. The CNTT composite maintains 65.2% degradation efficiency after five cycles, demonstrating robust stability. Coexisting ions negatively influence TC removal in the order: H2PO4− > <math></math> > Cl− > <math></math> > <math></math>. This work establishes the CNTT heterostructure as a promising, environmentally tolerant candidate for efficient pharmaceutical pollutant remediation in complex aqueous matrices.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 9","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111218","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