Dyes and Pigments最新文献_第7页

Charge transfer and surface morphology analysis of heteroatom-doped activated carbon for dye-sensitized solar cells 染料敏化太阳能电池杂原子掺杂活性炭的电荷转移及表面形貌分析

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-04 DOI: 10.1016/j.dyepig.2025.113007

Necip Ali Tuna , Adem Mutlu , I. Isil Gurten Inal , Esra Yıldız

{"title":"Charge transfer and surface morphology analysis of heteroatom-doped activated carbon for dye-sensitized solar cells","authors":"Necip Ali Tuna , Adem Mutlu , I. Isil Gurten Inal , Esra Yıldız","doi":"10.1016/j.dyepig.2025.113007","DOIUrl":"10.1016/j.dyepig.2025.113007","url":null,"abstract":"<div><div>This study explores the feasibility of heteroatom-doped activated carbon (Ac) as a low-cost substitute for platinum (Pt) counter electrode (CE) in dye-sensitized solar cells (DSSCs). Ac was doped with nitrogen (N), sulfur (S), and phosphorus (P), both individually and in combination (S-N-P), to examine their effects on Ac structure, electrochemical behavior, and DSSC performance. Scanning electron microscopy (SEM) demonstrated notable micromorphological changes due to doping, influencing porous structure and surface uniformity. While undoped Ac exhibited a rough and irregular microstructure, N-doping reduced surface roughness and irregularity, leading to a more ordered porous structure. However, it also increased charge transfer resistance due to the formation of larger pores, ultimately resulting in lower efficiency. P-doping introduced structural disorder, further elevating charge transfer resistance and shortening electron lifetime, resulting in the lowest DSSC power conversion efficiency (PCE) of 0.9 %. In contrast, S-doping produced a more compact structure with enhanced electrocatalytic activity, improving PCE (3.2 %). The best performance was observed in S-N-P co-doped Ac, which achieved a PCE of 5.0 %, approaching that of Pt (6.6 %), due to reduced charge transfer resistance (R<sub>1</sub> = 6.5 Ω). Electrochemical impedance spectroscopy (EIS) confirmed that lower charge transfer resistance correlates with higher DSSC performance. Raman and XPS analyses further supported this result by confirming balanced defect density and rich surface functionalization in the S-N-P co-doped Ac. The research demonstrates the potential of multi-heteroatom doping of Ac for developing scalable, sustainable, and environmentally friendly alternatives to platinum for DSSC applications.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 113007"},"PeriodicalIF":4.1,"publicationDate":"2025-07-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144579771","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Novel phenanthrooxazole acceptor affording an efficient ultraviolet emitter and OLED with minimal roll-off via constitutional isomerization 新的苯并恶唑受体提供了一个有效的紫外线发射器和OLED与最小滚降通过构形异构化

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-03 DOI: 10.1016/j.dyepig.2025.113005

Jichen Lv , Shengnan Wang , Danyu Xie , Huiqian Qiu , Haoyuan Qi , Yuchao Liu , Shian Ying , Dongge Ma , Shouke Yan

{"title":"Novel phenanthrooxazole acceptor affording an efficient ultraviolet emitter and OLED with minimal roll-off via constitutional isomerization","authors":"Jichen Lv , Shengnan Wang , Danyu Xie , Huiqian Qiu , Haoyuan Qi , Yuchao Liu , Shian Ying , Dongge Ma , Shouke Yan","doi":"10.1016/j.dyepig.2025.113005","DOIUrl":"10.1016/j.dyepig.2025.113005","url":null,"abstract":"<div><div>Developing efficient ultraviolet organic electroluminescence materials and devices with an emission wavelength below 400 nm while minimizing efficiency roll-off remains a formidable challenge. Herein, three isomers (p-POBCz, m-POBCz and 3-POBCz) with a hybridized local and charge-transfer (HLCT) excited state characteristic have been developed by strategically incorporating electron-donating unit, phenylcarbazole, into novel rigid phenanthrooxazole acceptor at different attachment sites. Their photophysical and electronic properties can be precisely regulated through molecular isomer manipulation. A maximum external quantum efficiency (EQE) of 6.02 % is achieved in the 3-POBCz-based device, corresponding to color coordinates of (0.159, 0.048), which closely approximates the blue standard for 4K/8K ultrahigh-definition displays. Notably, the device that employs <em>meta</em>-substituted m-POBCz as an emitter, emits stable ultraviolet light with a peak wavelength of 392 nm due to its confined molecular conjugation length. It not only attains an impressive EQE of 6.35 % but also maintains a robust EQE of 6.16 % even at a high luminance of 1000 cd m<sup>−2</sup>, demonstrating minimal efficiency roll-off. These findings underscore the promising potential of phenanthrooxazole as an acceptor moiety in the design and synthesis of HLCT materials, thereby opening avenues for the advancement of high-performance wide bandgap emitters and their associated devices.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 113005"},"PeriodicalIF":4.1,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548412","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Molecular engineering of sterically-isolated spherical chromophores for high-performance second order nonlinear optical polymers 高性能二阶非线性光学聚合物空间分离球形发色团的分子工程

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-03 DOI: 10.1016/j.dyepig.2025.112988

Zefan Duan , Fuyang Huo , Bujia Liu , Zuo Zhang , Abdul Rahman , Zhuo Chen , Xiaoping Yang , Cailin Fu , Shuhui Bo

{"title":"Molecular engineering of sterically-isolated spherical chromophores for high-performance second order nonlinear optical polymers","authors":"Zefan Duan , Fuyang Huo , Bujia Liu , Zuo Zhang , Abdul Rahman , Zhuo Chen , Xiaoping Yang , Cailin Fu , Shuhui Bo","doi":"10.1016/j.dyepig.2025.112988","DOIUrl":"10.1016/j.dyepig.2025.112988","url":null,"abstract":"<div><div>Four novel chromophores have been designed and synthesized, consisting of julolidine electron donors, tricyanofuran (TCF) or trifluoromethyl-phenyl-tricyanofuran (CF<sub>3</sub>-Ph-TCF) as electron acceptors, and modified diene π-bridges. Based on the chromophores <strong>BHD-1</strong> and <strong>BHD-2</strong>, benzene derivatives containing three 3,5-bis(trifluoromethyl) substituents were incorporated into π-electron bridge to obtain <strong>BHD-3</strong> and <strong>BHD-4</strong>. Thermal stability, optical properties and microscopic nonlinearity calculated by density functional theory (DFT) of chromophores were examined to explore structure-property relationships. Macroscopic electro-optic (EO) activity was also evaluated. As the concentration of doped chromophores increases, the EO coefficient of <strong>BHD-4/</strong>PMMA becomes higher, reaching a maximum of 78 p.m./V. Compared with the host-guest system, the EO activity of the neat <strong>BHD-4</strong> film without and with a titanium dioxide (TiO<sub>2</sub>) charge-blocking layer have been significantly improved, particularly the latter achieving a maximum EO coefficient of 112 p.m./V. The results demonstrate that the introduction of 3,5-bis(trifluoromethyl) benzene derivatives as auxiliary isolation groups can modify the chromophore into a more spherical configuration, thereby enhancing EO performance.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112988"},"PeriodicalIF":4.1,"publicationDate":"2025-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144563087","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

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J-aggregated merocyanine non-fullerene acceptors for organic solar cells 有机太阳能电池用j聚集merocyanine非富勒烯受体

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-02 DOI: 10.1016/j.dyepig.2025.113008

Yibin Li , Xin Liu , Xianglang Sun , Yaxin He , Jiangsheng Yu , Zhong'an Li

引用次数: 0

Dyes inspired ratiometric fluorescent sensors for glycosaminoglycans 染料启发的糖胺聚糖比例荧光传感器

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-02 DOI: 10.1016/j.dyepig.2025.113000

Shan Li, Haoyuan Deng, Yusheng Fan, Yubin Ding

{"title":"Dyes inspired ratiometric fluorescent sensors for glycosaminoglycans","authors":"Shan Li, Haoyuan Deng, Yusheng Fan, Yubin Ding","doi":"10.1016/j.dyepig.2025.113000","DOIUrl":"10.1016/j.dyepig.2025.113000","url":null,"abstract":"<div><div>Glycosaminoglycans are a family of linear polysaccharides with versatile biological activities. Representative examples such as heparin, chondroitin sulfate and hyaluronic acid are widely used in clinics. However, the chemical structure of these compounds is complicated. Analysis of the concentration and purity of a given glycosaminoglycan sample is inconvenient and simple, cheaper methods are required. It is therefore still meaningful to develop reliable and effective analytical tools for sensing of glycosaminoglycans. In this review, we have summarized the recent development in the design of ratiometric fluorescent sensors for glycosaminoglycans. Especially, this review is focussed on sensors which utilize organic dyes as the signal reporters. This is because small dyes exhibit many merits such as readily and controllable synthetic chemistry, low cost, and sensitive response to glycosaminoglycans. The discussion on ratiometric fluorescent sensors for glycosaminoglycans was divided into three subtopics including small organic molecule-based fluorescent sensors, dye-embedded fluorescent polymers and dye-nanomaterial hybrid sensors for glycosaminoglycans. Finally, recognizing the significance of turn-on fluorescence for glycosaminoglycans detection, recent developments in fluorescent turn-on sensors for glycosaminoglycans are discussed with representative examples.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 113000"},"PeriodicalIF":4.1,"publicationDate":"2025-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548415","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Isobenzothiadiazole-based dichroic dyes for smart windows 智能窗用异苯并噻唑基二色染料

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-07-01 DOI: 10.1016/j.dyepig.2025.113006

Shengbo Zhu , Boxin He , Jian Li , Lingchao Mo , Juanli Li , Yongliang Liu , Xiao Song , Minggang Hu , Zhongchen Yang , Jinhu Yuan

{"title":"Isobenzothiadiazole-based dichroic dyes for smart windows","authors":"Shengbo Zhu , Boxin He , Jian Li , Lingchao Mo , Juanli Li , Yongliang Liu , Xiao Song , Minggang Hu , Zhongchen Yang , Jinhu Yuan","doi":"10.1016/j.dyepig.2025.113006","DOIUrl":"10.1016/j.dyepig.2025.113006","url":null,"abstract":"<div><div>Six novel donor-acceptor-donor (D-A-D) dichroic dyes (<strong>1</strong>–<strong>6</strong>) based on isobenzothiadiazole (isoBTD) as acceptor units are designed and synthesized. Different groups (<em>i.e.</em>, amyl, N,N-dibutyl, pentyloxy, fluorine atom, thiobutyl and acetylene bond) are introduced into the donors aiming at evaluating the influence of terminal groups on photophysical, photostability and dimming properties. Also, density functional theory (DFT) calculations are used to assist in the explanation. Interestingly, <strong>1</strong>, <strong>4</strong> and <strong>5</strong> show liquid crystal phase with high clearing points. The absorption and emission spectra of all the dyes have varying degrees of redshift and blueshift by modifying the terminal groups. Among these six dyes, <strong>2</strong> has the smallest electrochemical band gap (2.13 eV) and theoretical band gap (2.68 eV) due to a high electron-rich ability of the N,N-dibutyl group, which is conducive to the redshift of the spectrum. Meanwhile, <strong>5</strong> bearing the thiobutyl group shows the highest dichroic ratio (D<sub>A</sub> = 6.24), as well as the smallest color difference (ΔE = 26.69) under UV light (365 nm) irradiation for 2 h, while <strong>3</strong> containing the pentyloxy group gives the widest transmittance difference (ΔT = 22.44 %). These results provide useful references for the development of dichroic dyes for smart windows.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 113006"},"PeriodicalIF":4.1,"publicationDate":"2025-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144548411","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydroxyphenylbenzothiazole derivatives and their boron complexes: AIE properties and application in WLEDs devices 羟基苯基苯并噻唑衍生物及其硼配合物：AIE性质及其在led器件中的应用

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-06-29 DOI: 10.1016/j.dyepig.2025.113003

Yang Ren, Yuwei Song, Peng Xu, Zhi Zhao, Jinxin Miao, Senqiang Zhu, Rui Liu, Hongjun Zhu

{"title":"Hydroxyphenylbenzothiazole derivatives and their boron complexes: AIE properties and application in WLEDs devices","authors":"Yang Ren, Yuwei Song, Peng Xu, Zhi Zhao, Jinxin Miao, Senqiang Zhu, Rui Liu, Hongjun Zhu","doi":"10.1016/j.dyepig.2025.113003","DOIUrl":"10.1016/j.dyepig.2025.113003","url":null,"abstract":"<div><div>Driven by the global energy crisis and the increasing demand for efficient, energy-saving lighting sources, this study investigates 2-hydroxyphenylbenzothiazole (HBT) derivatives and their boron complexes, emphasizing the potential of their aggregation-induced emission (AIE) characteristics in white light-emitting diodes (WLED) applications. Six compounds were synthesized, including three HBT derivatives (<strong>HBT1</strong> ∼ <strong>HBT3</strong>) and three BBF derivatives (<strong>BBF1</strong> ∼ <strong>BBF3</strong>), with molecular structure modifications employed to enhance their photoluminescence. Analysis of the UV absorption, fluorescence emission, and single-crystal structures of these compounds revealed that their luminescence mechanisms are closely related to excited-state intramolecular proton transfer (ESIPT). Ultimately, utilizing the synthesized <strong>BBF1</strong>, a high-performance WLED device was successfully fabricated, achieving a luminous efficacy of 120.42 lm·W<sup>−1</sup> and a color rendering index (CRI) of 74, demonstrating its promising application potential as a next-generation energy-saving lighting material.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 113003"},"PeriodicalIF":4.1,"publicationDate":"2025-06-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

“Turn-off” Cd-MOF fluorescence sensor for identification and detection of Fe3+, Cr6+ and antibiotics in aqueous solutions “关断”型Cd-MOF荧光传感器用于水溶液中Fe3+、Cr6+和抗生素的鉴定和检测

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-06-28 DOI: 10.1016/j.dyepig.2025.112999

Yun Cao, Ke-Xin Yuan, Yan Wang

{"title":"“Turn-off” Cd-MOF fluorescence sensor for identification and detection of Fe3+, Cr6+ and antibiotics in aqueous solutions","authors":"Yun Cao, Ke-Xin Yuan, Yan Wang","doi":"10.1016/j.dyepig.2025.112999","DOIUrl":"10.1016/j.dyepig.2025.112999","url":null,"abstract":"<div><div>A newly developed cadmium coordination polymer, [Cd(HEA)(L1)]<sub>n</sub> (<strong>1</strong>), was prepared via a hydrothermal method and demonstrated to function as a multifunctional fluorescent probe for detecting heavy metal ions and antibiotics in aqueous solutions. The compound exhibits an unique two-dimensional layered structure that self-organizes into a robust three-dimensional framework, showcasing exceptional thermal stability and significant solvent tolerance. Fluorescence studies emphasized the outstanding metal ion detection capabilities of complex <strong>1</strong>, which demonstrated a detection limit of 0.01434 μM for Fe<sup>3+</sup> and 0.05949–0.06148 μM for Cr<sup>6+</sup>. Furthermore, the material exhibited selective fluorescence quenching towards specific antibiotics, with detection limits of 0.0369 μM for Ornidazole (ODZ) and 0.0687 μM for Nitrofurazone (NFZ). Notably, the material retained its fluorescent properties over five consecutive usage cycles. Comprehensive experimental studies and theoretical calculations show that the fluorescence quenching process involves the synergistic action of multiple mechanisms, mainly including: static quenching, dynamic quenching, competitive absorption, and light-induced electron transfer pathways. This work presents a promising strategy for sensing trace heavy metals and antibiotics in water systems, offering valuable contributions to the development of advanced environmental monitoring methodologies.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112999"},"PeriodicalIF":4.1,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144514009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Photochromic fine-tuning of naphthopyrans through rhenium(I) coordination: Insights into photochromism and emission switching 通过铼(I)配位的萘吡啶的光致变色微调：对光致变色和发射开关的见解

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-06-28 DOI: 10.1016/j.dyepig.2025.112998

Orlando D.C.C. De Azevedo, Paul I.P. Elliott, Christopher D. Gabbutt, B. Mark Heron, Paul A. Scattergood

{"title":"Photochromic fine-tuning of naphthopyrans through rhenium(I) coordination: Insights into photochromism and emission switching","authors":"Orlando D.C.C. De Azevedo, Paul I.P. Elliott, Christopher D. Gabbutt, B. Mark Heron, Paul A. Scattergood","doi":"10.1016/j.dyepig.2025.112998","DOIUrl":"10.1016/j.dyepig.2025.112998","url":null,"abstract":"<div><div>This study reports the synthesis, characterisation and photophysical investigation of a series of rhenium(I)-pyridyl-substituted naphthopyran complexes, <em>fac</em>-[Re(N^N)(CO)<sub>3</sub>(NP)]PF<sub>6</sub>, with a focus on how Re(I) coordination fine-tunes the photochromic properties of the naphthopyran (NP) ligands. Additionally, this study describes how the photochromic reaction notably enables reversible photoswitching of the emissive behaviour of the complexes. The Re(I) complexes were readily obtained via ligand substitution (yields = 14–83 %) and were fully characterised by FT-IR, HRMS and NMR. The absorption spectra revealed bathochromic shifts of the <em>λ</em><sub>max</sub> compared to the NP precursors, with <em>λ</em><sub>max</sub> values in the 356–386 nm range. Upon UV irradiation, the Re(I) complexes exhibited remarkably enhanced photochromic properties compared to the NP precursors, including much faster colour transitions from colourless/pale yellow to yellow/orange/red hues (<em>λ</em><sub>PSS</sub> = 422–500 nm), bathochromically shifted absorption bands (by 6–18 nm), significantly improved photocolourability (up to ∼10<sup>2</sup>-fold) and accelerated thermal bleaching kinetics. Photoluminescence studies revealed broad, diimine (N^N)-sensitive emission bands with peak maxima centred in the 442–577 nm range, along with reversible phosphorescence quenching of up to 79 % upon photochromic activation. These results highlight the potential of Re(I) coordination to finely tune the photochromic properties of naphthopyrans, offering exciting opportunities for the rational design of ultrafast, highly coloured, tunable photochromes with applications in ophthalmic lenses, molecular switches and smart materials. Additionally, Re(I) coordination enables dynamic control of phosphorescence, unlocking promising possibilities for light-responsive photonic devices.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112998"},"PeriodicalIF":4.1,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144534128","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Oxidation of organic sulfides into sulfoxides under low-power light irradiation photocatalyzed by metallophthalocyaninate-capped 3d-metal tris-pyridineoximates 有机硫化物在低功率光照射下由金属酞菁酸包盖的三维金属三吡啶肟酸盐光催化氧化成亚砜

IF 4.1 3区工程技术

Dyes and Pigments Pub Date : 2025-06-27 DOI: 10.1016/j.dyepig.2025.112995

Daria A. Polivanovskaia , Semyon V. Dudkin , Svetlana A. Belova , Ivan A. Skvortsov , Ekaterina G. Lebed , Kirill P. Birin , Aslan Yu. Tsivadze , Yan Z. Voloshin

{"title":"Oxidation of organic sulfides into sulfoxides under low-power light irradiation photocatalyzed by metallophthalocyaninate-capped 3d-metal tris-pyridineoximates","authors":"Daria A. Polivanovskaia , Semyon V. Dudkin , Svetlana A. Belova , Ivan A. Skvortsov , Ekaterina G. Lebed , Kirill P. Birin , Aslan Yu. Tsivadze , Yan Z. Voloshin","doi":"10.1016/j.dyepig.2025.112995","DOIUrl":"10.1016/j.dyepig.2025.112995","url":null,"abstract":"<div><div>A series of iron-, nickel(II)- and cobalt(III)-centered zirconium- and hafnium(IV)phthalocyaninate-capped tris-pyridineoximates was prepared in their yields from moderate to relatively high using the template condensation of 2-acetylpyridineoxime as a chelating ligand synthon with equimolar amount of metal(IV)phthalocyaninate (M(IV)<img>Zr(IV), Hf(IV)) as a capping Lewis acidic agent on the corresponding <em>3d</em>-metal ion as a matrix. In the case of cobalt complexes, an oxidation of the initial Co<sup>2+</sup> ions occurred in a course of the template self-assembly reactions. Variation of both the capping and the including encapsulated metal ions were found to affect their photochemical properties, photostability and photocatalytic activity. Iron- and nickel(II)-centered complexes of this type are most photostable under a light irradiation. The zirconium(IV)phthalocyaninate-capped nickel(II) tris-pyridineoximate possesses an excellent photocatalytic activity in the tested sulfoxidation reactions. It selectively catalyzes oxidation of a wide range of various organic sulfides, such as aromatic, aliphatic and cyclic substrate, as well as those with substituent prone to oxidation. In the performed large-scale (10 mmol) oxidation experiments with thioanizole and dibenzylsulfoxide as the substrates, the isolated yields of their target sulfoxide derivatives became of 98–99 % with the catalytic turnover numbers up to 2·10<sup>4</sup>.</div></div>","PeriodicalId":302,"journal":{"name":"Dyes and Pigments","volume":"242 ","pages":"Article 112995"},"PeriodicalIF":4.1,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144522641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0