ChemPhotoChem最新文献_第8页

H+/X− Co-Transport Driven by Azobenzene Containing Aromatic Amides 由含偶氮苯的芳香族酰胺驱动的 H+/X- 协同传输

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-30 DOI: 10.1002/cptc.202400179

Sameer Ahmad Malik, Nandita Madhavan

引用次数: 0

Classification and Summary of Photocatalytic Chemical Reactions Driven by Triplet-Triplet Annihilation Upconversion 三重-三重湮灭上转换驱动的光催化化学反应的分类和总结

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-27 DOI: 10.1002/cptc.202400184

Wen Yao, Xiaojuan Song, Dr. Lin Xue, Dr. Shanshan Liu, Linglong Tang, Prof. Yanli Chen, Dr. Heyuan Liu, Prof. Xiyou Li

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Eco-friendly Visible Wavelength Photodetectors Based on Colloidal Molybdenum Trioxide Nanobelt Arrays 基于胶体三氧化钼纳米带阵列的环保型可见光波长光电探测器

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-26 DOI: 10.1002/cptc.202400038

D. S. Ivan Jebakumar, Vallabha Rao Rikka

引用次数: 0

A Photoinduced Annulation Strategy Towards a Polycyclic Heteroaromatic Chromophore: Scope, Mechanism, Properties and Applications 实现新型多环杂芳香族发色团的光诱导环化策略：范围、机理、特性和应用。

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-25 DOI: 10.1002/cptc.202400199

Marine Labro, Audrey Pollien, Dr. Maëlle Mosser, Delphine Pitrat, Jean-Christophe Mulatier, Mathilde Seinfeld, Prof. Dr. Tangui Le Bahers, Dr. Bruno Baguenard, Prof. Dr. Stéphan Guy, Dr. Cyrille Monnereau, Dr. Laure Guy

{"title":"A Photoinduced Annulation Strategy Towards a Polycyclic Heteroaromatic Chromophore: Scope, Mechanism, Properties and Applications","authors":"Marine Labro, Audrey Pollien, Dr. Maëlle Mosser, Delphine Pitrat, Jean-Christophe Mulatier, Mathilde Seinfeld, Prof. Dr. Tangui Le Bahers, Dr. Bruno Baguenard, Prof. Dr. Stéphan Guy, Dr. Cyrille Monnereau, Dr. Laure Guy","doi":"10.1002/cptc.202400199","DOIUrl":"10.1002/cptc.202400199","url":null,"abstract":"This article reports a detailed mechanistic and kinetic study of an unusual photoreaction leading to the (diazonia)tetrabenzonaphthacene skeleton. The photo-triggered double intramolecular nucleophilic aromatic substitution (SNAr*) has been investigated by varying the leaving groups. Photoreaction quantum yields have been determined and mechanistic insights have been supported by theoretical calculations using DFT and TD-DFT methods. Additionally, we show that this light-triggered formed diazonia constitutes a potent photosentitizer with a singlet oxygen generation quantum yield of 0.55, both in organic solvents and in water, which is an extremely relevant value in view of PDT applications or use as an oxidation photocatalyst in aqueous media. Once again, the experimental observations were supported by TD-DFT calculations showing a large density of triplet states below the S1 excited state along with large spin-orbit couplings. The reaction is not restricted to solutions but can also occur in solid PDMS matrices thus allowing for photochemical encoding of information that will progressively vanish upon prolonged UV-exposure.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"8 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/cptc.202400199","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141771196","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

Excimer-Induced Efficient Luminescence by Discrete Intermolecular π−π Stacking of Naphthalimide-Based Dimer 萘二甲酰亚胺基二聚体分子间离散的 π-π 堆积诱导的准分子高效发光

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-24 DOI: 10.1002/cptc.202400097

Shiyin Wang, Daojie Yang, Haichao Liu, Shi-Tong Zhang, Prof. Bing Yang

{"title":"Excimer-Induced Efficient Luminescence by Discrete Intermolecular π−π Stacking of Naphthalimide-Based Dimer","authors":"Shiyin Wang, Daojie Yang, Haichao Liu, Shi-Tong Zhang, Prof. Bing Yang","doi":"10.1002/cptc.202400097","DOIUrl":"10.1002/cptc.202400097","url":null,"abstract":"π−π stacking interactions are generally thought to reduce the luminescence of materials. Here, a systematic investigation is conducted using a π−π stacking dimer with varying steric hindrance substituents as a model to illustrate how π−π stacking structure affects the luminescence efficiency of materials. Four naphthalimide (NI) derivative molecules were designed and synthesized by incorporating sterically hindered unilateral groups to achieve NIPH, NIP1C, NIP2C, and NIP3C. It was figured out that side group modification did affect their crystal packing structures and luminescent properties. On the one hand, the excimer state formed by strongly interacted π−π NI-based dimer (NIPH and NIP3C) enhances luminescence efficiency compared to the monomer state based on weakly interacted π−π NI-based dimers (NIP1C and NIP2C). On the other hand, the discrete stacking of NI-based dimers (NIP3C) further promotes luminescence efficiency compared to the nondiscrete stacking of NI-based dimers (NIPH). Among these four compounds, NIP3C exhibits discrete stacking of π−π NI-based dimer due to the large steric hindrance generated by propyl benzene, resulting in the highest luminescence efficiency of the NIP3C crystal. This work will provide further insight into the underlying mechanisms behind the high luminescence efficiency induced by π−π dimer stacking.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"8 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141770955","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

Synthesis of Ternary Photoactive Heterojunction B/CN@rGO for Visible Light Driven Selective Photooxidation of Benzyl Alcohol 合成三元光活性异质结 B/CN@rGO，用于可见光驱动的苯甲醇选择性光氧化反应

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-12 DOI: 10.1002/cptc.202400171

Komal Trivedi, Bhanupriya Yadav, Rohit Shrivastav, Chetan K. Modi

{"title":"Synthesis of Ternary Photoactive Heterojunction B/CN@rGO for Visible Light Driven Selective Photooxidation of Benzyl Alcohol","authors":"Komal Trivedi, Bhanupriya Yadav, Rohit Shrivastav, Chetan K. Modi","doi":"10.1002/cptc.202400171","DOIUrl":"10.1002/cptc.202400171","url":null,"abstract":"This work introduces a novel ternary heterostructure as a photocatalyst to selectively produce benzaldehyde from benzyl alcohol through photooxidation. We have synthesized bismuth vanadate functionalized graphitic carbon nitride decorated reduced graphene oxide B/CN@rGO ternary composite and subsequently subjected it to several characterization methodologies like XRD, FE-SEM, HR-TEM, XPS, FT-IR, TGA, UV-vis DRS, and EIS. The synthesized B/CN@rGO was effectively used in the photooxidation process to produce benzaldehyde from benzyl alcohol, employing a cost-effective white LED light of 200 W. Remarkable selectivity (100 %) towards the benzaldehyde was attained employing green oxidant H2O2. In addition, the synthesized photocatalyst showed unique thermal stability and could be reused for over five cycles without compromising the selectivity of the resulting product. Based on our comprehensive review of the existing study, the present work introduces a unique approach for the photooxidation of benzyl alcohol, employing B/CN@rGO ternary heterostructure as the photocatalyst.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"8 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613713","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

Optical Emission Spectra of Molecular Excitonic Polariton Computed at the First-Principles Level QED-TDDFT 第一原理水平 QED-TDDFT 计算的分子激子极化子光学发射光谱

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-10 DOI: 10.1002/cptc.202400117

Shanhao Deng, Junjie Yang, Yihan Shao, Qi Ou, Prof. Zhigang Shuai

{"title":"Optical Emission Spectra of Molecular Excitonic Polariton Computed at the First-Principles Level QED-TDDFT","authors":"Shanhao Deng, Junjie Yang, Yihan Shao, Qi Ou, Prof. Zhigang Shuai","doi":"10.1002/cptc.202400117","DOIUrl":"10.1002/cptc.202400117","url":null,"abstract":"In microcavity, strong coupling between light and molecules leads to the formation of hybrid excitations, i. e., the polaritons, or exciton-polaritons. Such coupling may alter the energy landscape of the system and the optical properties of the material, making it an effective approach for controlling the light emission from molecular materials. However, due to the complexity of vibrational modes, spectroscopic calculations for organic exciton-polaritons remain to be challenging. In this work, based on the linear-response quantum-electrodynamical time-dependent density functional theory (QED-TDDFT), we employ the thermal vibrational correlation function (TVCF) formalism to calculate the molecular optical spectrum of the lower polaritons (LP) at first-principles level for three molecules, i. e., anthracene, distyrylbenzenes (DSB), and rubrene. The polaron decoupling effect is confirmed from our first-principles computations. The theoretical emission spectra of LP provide new insights for aiding molecular and device design in microcavities that are otherwise hindered due to the lack of vibrational information.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"8 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141584572","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

Front Cover: Substituent Effects in the Cationic Green Fluorescent Protein Chromophore: Ultrafast Excited-State Proton Transfer or Twisting? (ChemPhotoChem 7/2024) 封面：阳离子绿色荧光蛋白发色团中的取代基效应：超快激发态质子转移还是扭曲？(ChemPhotoChem 7/2024)

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-10 DOI: 10.1002/cptc.202480701

Jiawei Liu, Dr. Cheng Chen, Anatolii I. Sokolov, Dr. Mikhail S. Baranov, Prof. Dr. Chong Fang

引用次数: 0

High-Efficiency Deep Red Fluorescent Material with Aggregation Induced Emission and the Application in Organic Light-Emitting Diodes 具有聚集诱导发射功能的高效深红色荧光材料及其在有机发光二极管中的应用

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-10 DOI: 10.1002/cptc.202400098

Hui Liu, Hanyuan Zhang, Yuanyuan Pu, Zhi Li, Liang Wan, Shuyuan Ge, Xiaobo Ma, Futong Liu, Prof. Ping Lu

{"title":"High-Efficiency Deep Red Fluorescent Material with Aggregation Induced Emission and the Application in Organic Light-Emitting Diodes","authors":"Hui Liu, Hanyuan Zhang, Yuanyuan Pu, Zhi Li, Liang Wan, Shuyuan Ge, Xiaobo Ma, Futong Liu, Prof. Ping Lu","doi":"10.1002/cptc.202400098","DOIUrl":"10.1002/cptc.202400098","url":null,"abstract":"The development of highly efficient deep red materials with emission wavelength beyond 650 nm remains a big challenge due to the constraints imposed by the energy gap rule. In this work, a donor-acceptor-donor type emitter, 4,7-bis (10-(4-(tert-butyl) phenyl)-10H-phenothiazin-3-yl) benzo[c][1,2,5] thiadiazole (TBPPTZ) is designed and synthesized. Resulting from the slight twist angle between the donor and acceptor units, TBPPTZ exhibits nearly planar conformation and an extended conjugated structure. TBPPTZ shows a deep red emission peak at 687 nm and aggregation induced emission property with a high photoluminescence quantum yield of 45 % in neat thin film. The optimized organic light-emitting diode (OLEDs) utilizing TBPPTZ as the non-doped emissive layer obtains a high external quantum efficiency (EQE) up to 2.51 % with an electroluminescence (EL) peak at 676 nm, aligning with the Commission Internationale de L'Eclairage (CIE) coordinates (0.68, 0.31), which shows a small EQE roll-off of only 5.6 % at 100 cd m−2. Additionally, the doped OLED achieves an EQE up to 5.09 %, with an EL peak at 656 nm and CIE coordinates of (0.65, 0.34). The findings of this research not only contribute to achieve highly efficient deep red OLEDs but also offer a novel and effective deep red molecular strategy to realize high-quality OLEDs.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"8 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613720","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

Thermodynamic Reaction Study of Conversion of H2S and CO2 and the Promoting Effect of Light on the Reaction H2S 和 CO2 转化的热力学反应研究以及光对反应的促进作用

IF 3 4区化学

ChemPhotoChem Pub Date : 2024-07-08 DOI: 10.1002/cptc.202400125

Yuangang Duan, Prof. Shan Yu, Zhen He, Jingyuan Huang, Fushen Wang, Mengyao Fu, Zeai Huang, Prof. Ying Zhou

{"title":"Thermodynamic Reaction Study of Conversion of H2S and CO2 and the Promoting Effect of Light on the Reaction","authors":"Yuangang Duan, Prof. Shan Yu, Zhen He, Jingyuan Huang, Fushen Wang, Mengyao Fu, Zeai Huang, Prof. Ying Zhou","doi":"10.1002/cptc.202400125","DOIUrl":"10.1002/cptc.202400125","url":null,"abstract":"H2S and CO2 are common coexisted gases widely existing in natural gas resources, and they need to be treated harmlessly. The traditional Claus treatment process only focuses on H2S treatment but ignores CO2. This article systematically conducted theoretical thermodynamic research on the thermocatalytic conversion of H2S and CO2. It was found that increasing the reaction temperature and H2S ratio would have a positive impact on the reaction, while increasing the pressure would lead to a decrease in the conversion rate of reactants and product yield, and introducing COS into the feed gas could have a promoting effect on the reaction. Furthermore, 5 %Mo/Al2O3 catalyst was used to preliminarily explore the thermal and photothermal catalysis for H2S and CO2 conversion. The results showed that the photothermal catalysis significantly promoted the production of syngas (H2 and CO), and suppressed COS production in contrast to thermal catalysis. This indicates that the introduction of light could effectively convert H2S and CO2 into high-value product syngas, providing important reference value for further research on the conversion of H2S and CO2.","PeriodicalId":10108,"journal":{"name":"ChemPhotoChem","volume":"8 12","pages":""},"PeriodicalIF":3.0,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141575410","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