ChemPhotoChemPub Date : 2025-05-09DOI: 10.1002/cptc.202500064
Ben C. Bimberg, Florian K. Blaser, Pavel S. Pidenko, Javier Recio Ramos, Elena Fedotova, Bastian Mueller, Natalia A. Burmistrova, Antje Baeumner, Axel Duerkop, Axel Jacobi von Wangelin
{"title":"Fluorescent and Chemiluminescent Dyes with Aryl Phthalimide and Aryl Luminol Chromophores","authors":"Ben C. Bimberg, Florian K. Blaser, Pavel S. Pidenko, Javier Recio Ramos, Elena Fedotova, Bastian Mueller, Natalia A. Burmistrova, Antje Baeumner, Axel Duerkop, Axel Jacobi von Wangelin","doi":"10.1002/cptc.202500064","DOIUrl":"10.1002/cptc.202500064","url":null,"abstract":"<p>Luminol is one of the most widely established and most well-known chemiluminescent molecules with diverse applications in modern analytical sciences such as forensics and cell assays. Structural and electronic modifications of the parent luminol can effectively enhance the (photo)physical and (photo)chemical properties. Herein, a straightforward route to stereoelectronically modulated luminol derivatives is developed by utilization of an effective cross-coupling at a versatile bromo phthalimide precursor. The modular synthesis enabled convenient access to two distinct classes of photoactive molecules: highly fluorescent 6–aryl–4–amino <i>N</i>-methyl phthalimides and chemiluminescent 7–aryl luminol derivatives. Electron-rich aryl substituents are shown to significantly enhance chemiluminescence (CL) quantum yields and exhibit good limits of detection in a CL hydrogen peroxide assay. The stereoelectronic effects on absorption, fluorescence, and CL properties are evaluated by experimental and theoretical studies.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 8","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500064","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869267","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}
ChemPhotoChemPub Date : 2025-05-04DOI: 10.1002/cptc.202500056
Zhizhuan Zhang, Guohong Zou
{"title":"Chemical Composition Regulation for Tuning the Luminescent Properties of Organic–Inorganic Metal Halides","authors":"Zhizhuan Zhang, Guohong Zou","doi":"10.1002/cptc.202500056","DOIUrl":"10.1002/cptc.202500056","url":null,"abstract":"<p>Organic–inorganic metal halides (OIMHs) exhibiting superior optoelectronic properties have shown broad applications in sensing, photovoltaic devices, information storage, and biological imaging. Compared with pure inorganic or pure organic materials, OIMHs are distinguished by their hybrid feature, with processability of organic components and robustness of inorganic units, as well as plentiful luminescent sources derived from organic ligands, self-trapped excitons (STEs) of inorganic lattices, or the energy transfer between organic and inorganic species. Thereinto, chemical composition tunability of organic component, metal ions, and halogen provides multiple adjustable sites to tailor their structures and physicochemical properties. However, how to realizing effective and tunable luminescence in OIMHs for desired applications through rational chemical composition regulation has become a challenge. In this review, starting from the structurally tunable sites of OIMHs, the feasible methods for regulating the luminescent properties of OIMHs are summarized, which include the change of organic components, tunable dimensionality and configurations of inorganic species, heterometal inorganic units, as well as the systematic multisite fine-tuning based on a specific matrix. Finally, the challenges to synthesize OIMHs with promising luminescence performance through chemical composition regulation are discussed.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 8","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869399","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}
ChemPhotoChemPub Date : 2025-05-04DOI: 10.1002/cptc.202500036
Daniel Kolb, Andrey Fedulin, Burkhard König
{"title":"Anthraquinone Sulfonates as Water-Soluble Photocatalysts: Synthetic Applications and Perspectives","authors":"Daniel Kolb, Andrey Fedulin, Burkhard König","doi":"10.1002/cptc.202500036","DOIUrl":"10.1002/cptc.202500036","url":null,"abstract":"<p>Anthraquinone sulfonates are water-soluble and cost-effective photocatalysts that have been attracting increasing interest due to their unique features. Their sulfonate groups unlock the application of the photoactive anthraquinone core in aqueous solution. Moreover, these readily available catalysts can engage with substrates through different activation modes, such as hydrogen atom transfer and proton-coupled electron transfer events. However, to date, their reactivity has not been fully explored and further applications are expected to emerge. Herein, the existing synthetic applications are outlined and the future perspectives are discussed.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 8","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://chemistry-europe.onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500036","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144869351","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}
ChemPhotoChemPub Date : 2025-05-01DOI: 10.1002/cptc.202500079
Rafael G. Uceda, Alfonso Gijón, Sandra Míguez-Lago, Carlos M. Cruz, Luis Álvarez de Cienfuegos, Antonio J. Mota, Delia Miguel, Juan M. Cuerva
{"title":"Chiral Intelligence: The Artificial Intelligence-Driven Future of Chiroptical Properties","authors":"Rafael G. Uceda, Alfonso Gijón, Sandra Míguez-Lago, Carlos M. Cruz, Luis Álvarez de Cienfuegos, Antonio J. Mota, Delia Miguel, Juan M. Cuerva","doi":"10.1002/cptc.202500079","DOIUrl":"10.1002/cptc.202500079","url":null,"abstract":"<p>Chirality plays a fundamental role in molecular sciences, with chiroptical properties offering valuable insights into the interaction between chiral molecules and polarized light. Designing chiral materials with enhanced properties requires a deep understanding of underlying physical principles, often revealed only through large datasets. In this context, artificial intelligence (AI) emerges as a powerful tool for accelerating discovery and optimization, efficiently exploring vast chemical spaces. This work explores the synergy between AI and chiroptical properties, highlighting recent advances in data-driven approaches for circular dichroism and circularly polarized luminescence. AI has demonstrated its ability to predict these phenomena accurately while uncovering structure–property relationships that can remain hidden under traditional methods. Various strategies are examined for integrating AI into chiroptical properties and the challenges and future directions of this field are discussed. In conclusion, combining chemical intuition with AI offers great potential for the rational design of next-generation chiral materials. This integration not only promises to unlock novel compounds with enhanced chiroptical properties but also provides new opportunities to deepen our understanding of chiroptical phenomena.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500079","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673010","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}
ChemPhotoChemPub Date : 2025-05-01DOI: 10.1002/cptc.202500039
Anthony D’ Aléo, Virginie Placide, Hao Ye, Matteo Fornasarig, Danillo Valverde, Eunyoung Choi, Gabriel Canard, Jeong Weon Wu, Yoann Olivier, Chihaya Adachi, Jean-Charles Ribierre
{"title":"Red-to-Near-Infrared Electroluminescence and Low-Threshold Amplified Spontaneous Emission from Solution-Processable Fluorescent Diketopyrrolopyrrole Derivatives","authors":"Anthony D’ Aléo, Virginie Placide, Hao Ye, Matteo Fornasarig, Danillo Valverde, Eunyoung Choi, Gabriel Canard, Jeong Weon Wu, Yoann Olivier, Chihaya Adachi, Jean-Charles Ribierre","doi":"10.1002/cptc.202500039","DOIUrl":"10.1002/cptc.202500039","url":null,"abstract":"<p>A detailed investigation of the photophysical, electroluminescence, and amplified spontaneous emission (ASE) properties of two solution-processable fluorescent diketopyrrolopyrrole derivatives is reported. Photophysical measurements are carried out in solution and blend films containing a 4,4′-bis(<i>N</i>-carbazolyl)-1,10-biphenyl (CBP) or a poly[(9,9-di-<i>n</i>-octylfluorenyl-2,7-diyl)-alt-(benzo[2,1,3]thiadiazol-4,8-diyl)] host, to gain important insights into the excited state behavior of these dyes. Quantum chemical calculations are also carried out to support the experimental findings. An optimization of the doping concentration in the CBP blends is necessary to reduce the strong aggregation. This optimization led for both near-infrared-emitting dyes to a substantial increase of the photoluminescence quantum yield, which can reach values as high as 60%. It is also found that the blend films show excellent ASE properties with a threshold as low as 3.5–4.5 μJ cm<sup>−2</sup> for peak wavelengths of 739 and 727 nm. In addition, the electroluminescence properties of the two organic laser dyes are examined in organic light-emitting diodes (OLEDs). The best OLED device shows a maximum external quantum efficiency value of around 2%. Overall, this study demonstrates the excellent potential of diketopyrrolopyrrole derivatives for high-performance near-infrared organic semiconductor lasers and provides useful information for the design of new efficient near-infrared emitters for optoelectronic applications.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500039","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673011","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}
ChemPhotoChemPub Date : 2025-05-01DOI: 10.1002/cptc.202500041
Shingo Hattori, Kazuteru Shinozaki
{"title":"Recent Advances in Luminescence of Platinum Complexes in the Near Infrared Second Window","authors":"Shingo Hattori, Kazuteru Shinozaki","doi":"10.1002/cptc.202500041","DOIUrl":"10.1002/cptc.202500041","url":null,"abstract":"<p>The near infrared (NIR) optical window enables to observe biological tissue noninvasively through photoimaging using luminophores. Particularly, the light in the NIR II region of 1000–1400 nm between strong absorption bands of H<sub>2</sub>O and tissue chromophores is advantageous for photoimaging and phototherapies of deep tissue. Pt complexes possessing the high emission ability and the luminescence tunability are expected to be luminophores for deep imaging and photosensitizers of photodynamic therapy. Herein, the NIR II emission from Pt complexes designed by the strategy of the extension of ligand π conjugation and the aggregation by the Pt–Pt interaction from recent works is reviewed.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 6","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273167","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}
ChemPhotoChemPub Date : 2025-04-27DOI: 10.1002/cptc.202500094
Dennis Fritzler, Cui Wang
{"title":"Luminescent Dinuclear Chromium(III) Complexes with Ferromagnetic Exchange Interactions","authors":"Dennis Fritzler, Cui Wang","doi":"10.1002/cptc.202500094","DOIUrl":"10.1002/cptc.202500094","url":null,"abstract":"<p>Recent advances with luminescent mononuclear chromium(III) complexes have provided important molecular design guidelines for enhancing their photoluminescence properties. Applying these modern aspects of coordination chemistry to dinuclear Cr<sup>III</sup> complexes, which are mostly not luminescent but show interesting magnetic properties, seems attractive for exploring functional coordination compounds with magnetic exchange interactions and light-induced activity. In this concept, the key structural requirements for dinuclear Cr<sup>III</sup> complexes with ferromagnetic exchange interactions and with photoluminescence properties, respectively, are analyzed. Rational merger of these key magneto-optical–structural correlations leads to new types of dinuclear Cr<sup>III</sup> complexes with ferromagnetic coupling and room temperature luminescence, and their photophysical properties make them promising photosensitizers for energy transfer. These design concepts open the door of exploring novel dinuclear Cr<sup>III</sup> complexes, which can allow the crosstalk of photophysics, photochemistry, and magnetic exchange interactions.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202500094","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144671960","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}
{"title":"Excitation-Dependent Luminescent Properties with Wide Range of Color Changes Using a Liquescent Cationic Gold(I) Complex","authors":"Shuichi Suzuki, Daiki Hishikawa, Naoki Ando, Soichiro Kawamorita, Takeshi Naota","doi":"10.1002/cptc.202500035","DOIUrl":"10.1002/cptc.202500035","url":null,"abstract":"<p>The solid form of a bis(trifluoromethanesulfonyl)imide ion salt of a cationic gold(I) complex ligated with cyclohexylisocyanide and an <i>N</i>-heterocyclic carbene is found to exhibit excitation-dependent luminescent properties. The solid form, prepared by maintaining the liquid phase of the complex at 90 °C for 7 days followed by cooling to 25 °C, displays bluish-purple, purple, orange, and red emissions under excitations at 340, 360, 370, and 380 nm, respectively. Excitation-dependent emission spectra reveal that the observed color changes result from varying intensity ratios of two emission bands centered at 430 and 652 nm. Control experiments suggest that these excitation-dependent luminescent properties originate from the coexistence of gold(I)–π aggregates and gold(I)–gold(I)-interacted oligomers, which exhibit higher and lower bandgap energies, respectively.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673098","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}
ChemPhotoChemPub Date : 2025-04-24DOI: 10.1002/cptc.202500078
Siyuan Chen, Yan Zeng, Xuewen Wang, Qingyu Dou, Qianfu Luo
{"title":"Structure-Dependent Fluorescent Behavior of Heterotetraarylene-Quinolones: The Critical Role of Chemical Bond Linkages","authors":"Siyuan Chen, Yan Zeng, Xuewen Wang, Qingyu Dou, Qianfu Luo","doi":"10.1002/cptc.202500078","DOIUrl":"10.1002/cptc.202500078","url":null,"abstract":"<p>Altering the manner in which groups are connected could offer a straightforward approach to achieving different functionality. Herein, heterotetraarylene molecules with varying bond-linked quinoline moieties are synthesized and designed to investigate their differential performances. The heterotetraarylene with carbon-carbon double bonded quinolines exhibits multifunctional properties: 1) all-visible light-induced photochromism, 2) acidochromism, and 3) acid–base gated photoswitch. Simultaneously, it achieves dual-mode fluorescence modulation through both photoexcitation and acid/base stimuli. However, the heterotetraarylene and quinoline connected by carbon carbon single bonds exhibit divergent properties, including light-induced emission enhancement and solvent-dependent fluorescence emission. This bond-selective functional divergence enables precise customization of stimulus-responsive fluorescence through simple connectivity control, establishing a novel design paradigm for smart molecular systems. Furthermore, the heterotetraarylene-linked quinolines with carbon carbon double bonds exhibit many properties, thus allowing for the construction of a new dual-responsive encryption system.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673099","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}
ChemPhotoChemPub Date : 2025-04-17DOI: 10.1002/cptc.202400385
Tamara Potlog, Ion Lungu, Anton Airinei, Radu Tigoianu
{"title":"Photophysical Properties of Substituted Zinc Phthalocyanine-Dextran Systems","authors":"Tamara Potlog, Ion Lungu, Anton Airinei, Radu Tigoianu","doi":"10.1002/cptc.202400385","DOIUrl":"10.1002/cptc.202400385","url":null,"abstract":"<p>This study presents the synthesis of tetracarboxy ZnPc/dextran and octacarboxy ZnPc/dextran solutions and the investigation of their photophysical properties using UV–vis, transient absorption (TA), and emission spectroscopy. Nanosecond TA measurements are conducted using pump–probe techniques. ZnPc(COOH)<sub>4</sub> derivative exhibits efficient fluorescence, room-temperature phosphorescence in dimethyl sulfoxide/H<sub>2</sub>O solution, with a quantum efficiency of 14.8% and lifetimes of 1.18 and 8.89 μs. The addition of dextran to ZnPc(COOH)<sub>8</sub> broadens the splitting of the two subbands in the Q band, leading to a characteristically strong far-redshift in the UV–vis absorption spectrum compared to the ZnPc(COOH)<sub>4</sub>/dextran (DX) system. The triplet-state properties of ZnPc(COOH)<sub>4</sub>/DX and ZnPc(COOH)<sub>8</sub>/DX systems with an absorption region within the phototherapeutic window, the average lifetimes values of 4.86 and 5.17 μs, respectively, reveal them attractive as photosensitizing materials in photodynamic therapy. TA spectra of ZnPc(COOH)<sub>4</sub>/DX and ZnPc(COOH)<sub>8</sub>/DX conjugates measured at a pump pulse of 355 nm show positive and negative signals, indicating triplet–triplet (T–T) absorption and triplet–singlet (T–S) emission.</p>","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"9 7","pages":""},"PeriodicalIF":3.0,"publicationDate":"2025-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202400385","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144672022","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}