ChemPhotoChem最新文献_第2页

Sunlight-Driven Photocatalytic Synthesis of Deep-Blue Light-Emissive Carbazolyl-α-Aminophosphonates Via The Kabachnik–Fields Reaction 利用卡巴尼克场反应光催化合成深蓝发光咔唑基-α-氨基膦酸盐

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-19 DOI: 10.1002/cptc.202500047

Rama Mohana Reddy Sirigireddy, Sai Teja Talari, Mohan Gundluru, Poojitha Bellala, Siva Dakshayani Vadanapalli, Sultana Shaik, Suresh Reddy Cirandur, Chinna Gangi Reddy Nallagondu

{"title":"Sunlight-Driven Photocatalytic Synthesis of Deep-Blue Light-Emissive Carbazolyl-α-Aminophosphonates Via The Kabachnik–Fields Reaction","authors":"Rama Mohana Reddy Sirigireddy, Sai Teja Talari, Mohan Gundluru, Poojitha Bellala, Siva Dakshayani Vadanapalli, Sultana Shaik, Suresh Reddy Cirandur, Chinna Gangi Reddy Nallagondu","doi":"10.1002/cptc.202500047","DOIUrl":"https://doi.org/10.1002/cptc.202500047","url":null,"abstract":"For the first time, an unconventional sunlight-induced photocatalytic protocol for the synthesis of deep-blue light emissive carbazolyl-α-aminophosphonates (CAPs) (4) via a solvent-free Kabachnik–Fields reaction under open air atmosphere has been developed. The reaction is assumed to proceed through a single electron transfer mechanism. The prepared photocatalyst, TiO2 nanowires has been characterized by X-ray diffraction, high-resolution transmission electron microscopy, and X-ray photoelectron spectroscopy analysis. Nature-friendly reaction profile, simple to perform, use of a renewable energy source, shorter reaction times, good functional group tolerance, excellent yields (91–98%), scalability, reuse of photocatalyst, products do not need chromatographic purification, and the green chemistry metrics are close to the ideal values are the notable advantages of the present MCR strategy. Therefore, the present approach is very close to the theory of “benign by design” concept. Further, the photophysical and electrochemical behavior of CAPs (4) are examined. The results indicate that the synthesized bifunctional (hole-transporting and deep-blue light emitters) CAPs (4) could be promising materials for the construction of economical and efficient blue light-emitting organic optoelectronic devices.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297211","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

Honeycomb-Like g-C3n4 for Efficient Cross-Dehydrogenative Coupling Reaction of Tetrahydroisoquinolines 四氢异喹啉类化合物高效交叉脱氢偶联反应的蜂窝状g-C3n4

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-18 DOI: 10.1002/cptc.202500099

Dingjun Liu, Li Ji, Chaoqi Zhai, Jinli Huang, Jianyao Kou, Zhuo Xin, Yuxing Huang

{"title":"Honeycomb-Like g-C3n4 for Efficient Cross-Dehydrogenative Coupling Reaction of Tetrahydroisoquinolines","authors":"Dingjun Liu, Li Ji, Chaoqi Zhai, Jinli Huang, Jianyao Kou, Zhuo Xin, Yuxing Huang","doi":"10.1002/cptc.202500099","DOIUrl":"https://doi.org/10.1002/cptc.202500099","url":null,"abstract":"Cost-effective and efficient photocatalysis is highly desirable in chemical synthesis. Here a honeycomb-like porous carbon nitride (P-C3N4) with defects was prepared by a simple one-step calcination of an aqueous urea solution. By introducing the hierarchical porous structure and defects, the P-C3N4 was able to make more efficient use of visible light and enhance mass transfer. This catalyst exhibits 44% longer carrier lifetime than bulk C3N4 and can be easily scaled up and demonstrates excellent catalytic reactivity in various types of cross-dehydrogenative coupling (CDC) reactions under visible light irradiation. A very high reaction rates of 6467 and 10,625 μmolg−1h−1 were achieved by P-C3N4 in model reaction of aza-Henry type and Mannich type of CDC reaction, which are 26.8 and 2.8 times higher than previous reports, respectively. Moreover, P-C3N4 can maintain 95% yield of target product in aza-Henry CDC reaction after 21 cycles of repeated experiments. Our low-cost, easy-to-process, and highly efficient C3N4 photocatalyst is expected to bring new insights in chemical synthesis.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297521","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

An Integrated Theoretical and Spectroscopic Analysis of the pH-Triggered Ring-Opening Mechanism in a Prototype Rhodamine-Based Fluorescent Dye 基于罗丹明的荧光染料原型中ph触发开环机制的综合理论和光谱分析

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-11 DOI: 10.1002/cptc.202500055

Mariangela Oggianu, Enzo Cadoni, Alessandra Garau, Francesco Quochi, Carla Cannas, Tiziana Pivetta, Maria Laura Mercuri

{"title":"An Integrated Theoretical and Spectroscopic Analysis of the pH-Triggered Ring-Opening Mechanism in a Prototype Rhodamine-Based Fluorescent Dye","authors":"Mariangela Oggianu, Enzo Cadoni, Alessandra Garau, Francesco Quochi, Carla Cannas, Tiziana Pivetta, Maria Laura Mercuri","doi":"10.1002/cptc.202500055","DOIUrl":"https://doi.org/10.1002/cptc.202500055","url":null,"abstract":"A novel ratiometric fluorescent platform, composed of a rodamine derivative and dansyl moiety, is designed and synthesized as a prototype sensor capable of responding to proton concentration. It is well known that, under neutral or basic conditions, rhodamine derivatives in their spirolactam form do not absorb or emit in the visible range. However, metal or proton ions can induce spirolactam ring opening, resulting in visible absorption and strong fluorescence emission. Although many rhodamine derivatives have been developed to detect metal ions or pH changes, the sensing mechanism related to spirolactam ring opening remains not fully understood. To address this, the hybrid platform described in this work is investigated across a wide pH range, particularly under high proton concentration, to study and clarify the proton-mediated ring opening mechanism of the rhodamine spirolactam. This investigation combined spectrophotometric and potentiometric measurements, supported by DFT calculations.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297177","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

Control of Circularly Polarized Luminescence in Extended Π-Electronic Aromatics-Based Chiral Liquid Crystals Induced by Electric Fields 电场诱导扩展Π-Electronic芳基手性液晶圆偏振发光的控制

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-09 DOI: 10.1002/cptc.202500112

Kazuki Terakubo, Haruka Nakajima, Daiya Suzuki, Kosuke Kaneko, Tomonori Hanasaki, Yoshitane Imai

{"title":"Control of Circularly Polarized Luminescence in Extended Π-Electronic Aromatics-Based Chiral Liquid Crystals Induced by Electric Fields","authors":"Kazuki Terakubo, Haruka Nakajima, Daiya Suzuki, Kosuke Kaneko, Tomonori Hanasaki, Yoshitane Imai","doi":"10.1002/cptc.202500112","DOIUrl":"https://doi.org/10.1002/cptc.202500112","url":null,"abstract":"Chiral liquid crystals (LCs) are essential for optoelectronic devices. Two representative achiral luminescent compounds, pyrene and perylene, are doped into a mixed chiral nematic LC (N*-LC) comprising achiral LC 4′-pentyl-4-biphenylcarbonitrile (5CB) and chiral LC 2-octyl-4-[4-(hexyloxy)benzoyloxy]benzoate (2OHBB). Consequently, despite being achiral luminescent materials, the doped pyrene and perylene successfully generate strong circularly polarized luminescence (CPL) from the resulting chiral N*-LC composed of 5CB and 2OHBB. The rotation direction of the extracted CPL can be controlled by the chirality of the LC molecule 2OHBB. Furthermore, these N*-LCs demonstrate continuous and reversible CPL responses depending on the presence or absence of a direct current (DC) electric field. This result demonstrates the successful design of a CPL LC system, where the rotation direction of CPL can be controlled not only by the chirality of 2OHBB, but also through the ON–OFF–ON switching of the DC electric field. This behavior is attributed to a reversible transition from a helical structure to another ordered structure (chiral nematic phase to chiral nematic phase transition). This study provides an effective strategy for controlling CPL properties by exposing N*-LC to DC electric fields and for developing functional CPL devices.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500112","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297220","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

Layered Perovskite/g-C3N4 S-Scheme Heterojunction for an Improved Photocatalytic Reduction of Bicarbonate to Formate 层状钙钛矿/g- c3n4s - scheme异质结用于改进光催化还原碳酸氢盐生成甲酸盐

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-07 DOI: 10.1002/cptc.202500048

Dhruv Chauhan, Rahul Gupta, Ajeet Kumar, Nishith Verma

{"title":"Layered Perovskite/g-C3N4 S-Scheme Heterojunction for an Improved Photocatalytic Reduction of Bicarbonate to Formate","authors":"Dhruv Chauhan, Rahul Gupta, Ajeet Kumar, Nishith Verma","doi":"10.1002/cptc.202500048","DOIUrl":"https://doi.org/10.1002/cptc.202500048","url":null,"abstract":"A Ruddlesden–Popper phase-layered perovskite Fe2SnO4 is coupled with graphitic carbon nitride (gCN) in an S-scheme heterojunction. The Fe2SnO4/gCN heterojunction is synthesized using the sonication–calcination method. The layered structure of Fe2SnO4 enhances charge migration toward the junction interface and enables the internal electric field, increasing the charge separation in the overall composite. The optical characteristics of Fe2SnO4/gCN show an excellent visible light utilization ability, thus expanding its applicability in solar (visible light)-driven catalytic approaches. A significant formate generation rate (2.043 mM h−1 gcat−1) is measured over the photocatalyst using the aqueous bicarbonate as the CO2 precursor. The isotope labeling test corroborates the generation of formate from bicarbonate. Fe2SnO4/gCN also displays a good stability over five reaction–regeneration cycles. The band structure of Fe2SnO4/gCN in conjunction with the radicals detected via spin trapping confirms the development of the S-scheme heterojunction in Fe2SnO4/gCN. Herein, the fabrication of the layered perovskite-based S-scheme heterojunction paves a path for pursuing the solar-driven environmental remediation strategies.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297093","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

Weak H-Bonds of Fluorophenyl Synthons Enabling Efficient and Entropically Stabilized Supramolecular Electro-Optic Dendrimers 氟苯基合成子的弱氢键形成高效和熵稳定的超分子电光树状大分子

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-07 DOI: 10.1002/cptc.202500109

Di Zhang, Danning Lyu, Shivani, Jingdong Luo

{"title":"Weak H-Bonds of Fluorophenyl Synthons Enabling Efficient and Entropically Stabilized Supramolecular Electro-Optic Dendrimers","authors":"Di Zhang, Danning Lyu,  Shivani, Jingdong Luo","doi":"10.1002/cptc.202500109","DOIUrl":"https://doi.org/10.1002/cptc.202500109","url":null,"abstract":"Herein, a series of supramolecular electro-optic (EO) dendrimers (EOD1-6) constructed using push–pull tetraene chromophores (PPT-phores) and Fréchet-type generation-1 benzyl ether dendrons with 2,3,5,6-tetrafluorophenyl or 2,4,6-trifluorophenyl groups at the periphery is presented. The fluorophenyl moieties possess enhanced CH acidity to form extended CH···F hydrogen bonds within complex functional dendrimers. Through comprehensive studies of optical absorption, electric field poling, EO activity, and thermal stability of EOD1-6/poly (methyl methacrylate) films, along with X-ray analyses of dendritic model compounds, it is elucidated that nonclassical hydrogen bonding of fluorophenyl synthons plays a pivotal role in modulating the strong dipole–dipole electrostatic interactions of PPT-phores. It facilitates the dipole orientation and enhances the stability of supramolecular EO dendrimers in poled films. Two of these dendrimers exhibit large r33 values of ≈170 pm V−1 at 1306 nm and ≈120 pm V−1 at 1541 nm, among the best EO activities to date for organic materials as certified by prism-coupled attenuated total reflection spectroscopy. Furthermore, examining subgap absorption for the films provides insights into the Urbach energy tail states. The notable properties and synthetic efficacy demonstrated by these dendrimers represent a transformative step in developing highly efficient, thermally stable, and low loss supramolecular organic EO materials for photonic applications.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297118","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

Symmetric Bis-Kryptopyrrol-2-Yl Squaraine as a Viscosity Probe and Dual-State Emitter 对称双氪吡咯-2-酰方炔作为粘度探针和双态发射器

IF 3 4区化学

ChemPhotoChem Pub Date : 2025-07-07 DOI: 10.1002/cptc.202500024

Daniel D. Ta, Bong Lee, Agnieszka Jablonska, William L. Burnett, Rajveer Sagoo, Danh Pham, Luca Ceresa, Jose L. Chavez, Joseph D. Kimball, Cynthia B. Powell, Jeffery L. Coffer, Kayla N. Green, Ignacy Gryczynski, Zygmunt Gryczynski, Benjamin G. Janesko, Sergei V. Dzyuba

{"title":"Symmetric Bis-Kryptopyrrol-2-Yl Squaraine as a Viscosity Probe and Dual-State Emitter","authors":"Daniel D. Ta, Bong Lee, Agnieszka Jablonska, William L. Burnett, Rajveer Sagoo, Danh Pham, Luca Ceresa, Jose L. Chavez, Joseph D. Kimball, Cynthia B. Powell, Jeffery L. Coffer, Kayla N. Green, Ignacy Gryczynski, Zygmunt Gryczynski, Benjamin G. Janesko, Sergei V. Dzyuba","doi":"10.1002/cptc.202500024","DOIUrl":"https://doi.org/10.1002/cptc.202500024","url":null,"abstract":"Easily accessible small organic fluorophores with multiplexing capabilities are of interest for a variety of fields. Here, a combination of experimental and computational methods reveals previously unknown, yet potentially useful properties of one of the original squaraine dyes, i.e., bis-kryptopyrrol-2-yl squaraine. The rotational flexibility of the pyrrole units around the squaraine core allows for this dye to act as a viscosity probe. In addition to the previously known fluorescence emission in solution with λem in the 550–580 nm range, this dye exhibits solid-state emission with λem at ≈800 nm. Thus, this dye is a dual-state emitter. density functional theory/time-dependent density functional theory calculations and concentration-dependent studies, in both solution and solid-state, indicate aggregated form of these dyes is responsible for the solid-state emission in the near-IR range.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 10","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500024","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145297117","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

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}

引用次数: 0

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}

引用次数: 0