Dalton Transactions最新文献

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Gadolinium-doped carbon nanoparticles: coordination, spectroscopic characterization and magnetic resonance relaxivity
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-25 DOI: 10.1039/d5dt00362h
Nikita Mitiushev, Daria U. Musaeva, Daniil A. Artemov, Alexander V. Syuy, Olga S. Pavlova, Yury A. Pirogov, EN Kabachkov, Alexander Fionov, V G Kytin, Elizaveta Konstantinova, Viktor Yurevich Timoshenko, Andrey N Baranov
{"title":"Gadolinium-doped carbon nanoparticles: coordination, spectroscopic characterization and magnetic resonance relaxivity","authors":"Nikita Mitiushev, Daria U. Musaeva, Daniil A. Artemov, Alexander V. Syuy, Olga S. Pavlova, Yury A. Pirogov, EN Kabachkov, Alexander Fionov, V G Kytin, Elizaveta Konstantinova, Viktor Yurevich Timoshenko, Andrey N Baranov","doi":"10.1039/d5dt00362h","DOIUrl":"https://doi.org/10.1039/d5dt00362h","url":null,"abstract":"Carbon nanoparticles (CNPs) are attracting great attention as potential multifunctional agents for biomedical applications because of their bright fluorescence, low toxicity and flexibility of the physico-chemical properties. In the present paper, aqueous solutions of CNPs doped with gadolinium (Gd) (Gd-CNPs) in a wide range of Gd-concentration were prepared by hydrothermal synthesis. The role of Gd doping on the optical properties and magnetic resonance (MR) relaxivity of Gd-CNPs was revealed. The Gd content was determined using X-ray fluorescence and spectrophotometry analysis. The composition of surface functional groups and coordination of Gd-ions in Gd-CNPs were established by means of the IR absorption spectroscopy and X-ray photoemission spectroscopy (XPS). The optical properties of Gd-CNPs in aqueous solutions were characterized by means of the UV-visible-near-IR absorption spectroscopy and photoluminescence measurements with different excitation wavelength. The local surroundings of Gd-ions and paramagnetic centers in Gd-CNPs were probed by using the electron paramagnetic resonance (EPR) spectroscopy. The MR proton relaxation measurements in aqueous solutions Gd-CNPs were carried out to determine the role of Gd-concentration for their MR contrasting. The obtained results characterize the coordination of Gd ions in Gd-CNPs and demonstrate new visions for controlling the optical and MR contrast properties of these nanoparticles for biomedical applications.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"37 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Coordination chemistry of the calix[6]arene system: application in polymerisation catalysis and beyond
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00473j
Carl Redshaw
{"title":"Coordination chemistry of the calix[6]arene system: application in polymerisation catalysis and beyond","authors":"Carl Redshaw","doi":"10.1039/d5dt00473j","DOIUrl":"https://doi.org/10.1039/d5dt00473j","url":null,"abstract":"This perspective looks at structurally characterized examples of metal-based calix[6]arene complexes, focusing on the coordination chemistry adopted and their applications, primarily in polymerisation catalysis. In particular, we look at our attempts to utilize the ability of the calix[6]arene system to accommodate multiple metal centres, and where appropriate, we compare the catalytic behaviour with that of other metallocalix[n]arenes formed from commercially available calix[n]arenes, i.e. the smaller but more common calix[4]arene and the larger calix[8]arene system. We also discuss how synthetic efforts are now targeting calix[6]arenes for which a change of the bridge can provide additional possibilities, i.e. heteroatom bridged tetrahomodioxacalix[6]arenes (containing -CH2OCH2- bridges) and tetrahomo diazacalix[6]arenes (containing -CH2N(R)CH2- bridges, R typically is methyl). The outlook for the future, in terms of the use of calix[6]arene-based catalysts is also discussed.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"7 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677738","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Changing the properties of monodentate and P,C-chelating ferrocenyl-substituted 1,2,3-triazol-5-ylidene ligands through an inserted carbonyl moiety
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00545k
Vera Varmuzova, Ivana Cisarova, Petr Štěpnička
{"title":"Changing the properties of monodentate and P,C-chelating ferrocenyl-substituted 1,2,3-triazol-5-ylidene ligands through an inserted carbonyl moiety","authors":"Vera Varmuzova, Ivana Cisarova, Petr Štěpnička","doi":"10.1039/d5dt00545k","DOIUrl":"https://doi.org/10.1039/d5dt00545k","url":null,"abstract":"Triazolylidenes derived from readily accessible triazoles are useful ligands for coordination chemistry and catalysis. This work describes the synthesis of Group 11 metal complexes of new ferrocenyl-substituted triazolylidene ligands in which the ferrocene and triazolylidene moieties are separated by a carbonyl linker. In particular, complexes of types [MCl(FcC(O){CCN(Mes)NN(Me)}-κC5)] (M = Cu or Au; Fc = ferrocenyl) and [M(FcC(O){CCN(Mes)NN(Me)}-κC5)2][BF4] (M = Cu, Ag, or Au) were prepared from FcC(O)CCH and characterised by spectroscopic methods, X-ray diffraction analysis and cyclic voltammetry. Using a similar strategy, the Pd(II) complex trans-[PdCl2(Ph2PfcC(O){CCN(Mes)NN(Me)}-κ2P,C5)] (fc = ferrocene-1,1'-diyl) was synthesised and analogously characterised. The phosphinocarbene ligand in this compound coordinates as a trans P,C-chelating ligand, unlike its analogues that lack the C=O spacer and similar compounds that combine the phosphine and carbene donor groups on the ferrocene scaffold. The influence of the carbonyl spacer was evaluated in a pair of Pd(II) bis-carbene complexes, [PdBr2({C(Fc)CN(Mes)NN(Me)}-κC5)(iPr2-bimy)] and [PdBr2(FcC(O){CCN(Mes)NN(Me)}-κC5)(iPr2-bimy)] (iPr2-bimy = 1,3-diisopropyl-1,3-dihydro-2H-benzimidazol-2-ylidene), by Huynh’s electronic parameters and the FeII/FeIII redox potential from cyclic voltammetry, which suggested an electron density decrease at the ferrocenyl group and decreased σ donor ability of the triazolylidene moiety upon introduction of the C=O linker. The Group 11 metal complexes were tested as catalysts for the metal-catalysed cyclisation of N-propargylbenzamide into 2-phenyl-5-methylene-4,5-dihydrooxazole. Among them, the chlorogold complex activated with a silver salt achieved the best results.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"21 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
High-pressure study of barium metavanadate monohydrate
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00423c
Daniel Errandonea, Javier Gonzalez-Platas, OUAHRANI Tarik, Fabio Piccinelli, Marco Bettinelli
{"title":"High-pressure study of barium metavanadate monohydrate","authors":"Daniel Errandonea, Javier Gonzalez-Platas, OUAHRANI Tarik, Fabio Piccinelli, Marco Bettinelli","doi":"10.1039/d5dt00423c","DOIUrl":"https://doi.org/10.1039/d5dt00423c","url":null,"abstract":"This study presents a single-crystal X-ray diffraction investigation of the high-pressure behavior of barium metavanadate monohydrate, BaV2O6·H2O, up to 7.1 GPa. These measurements were combined with high-pressure optical absorption measurements performed up to 10.1 GPa and with density-functional theory calculations. The X-ray diffraction analysis indicates that BaV2O6·H2O adopts an orthorhombic structure described by space group P212121 at ambient pressure. This structure maintains stability up to 8 GPa, in contrast to anhydrous BaV2O6 which undergoes a phase transition at 4 GPa. Throughout the pressure range examined, the compression of the crystal is highly anisotropic with the b-axis having a nearly zero linear compressibility. Additionally, our optical absorption measurements reveal that BaV2O6·H2O exhibits an indirect band gap that decreases from 4.62(5) eV at 0.03 GPa to 4.48(5) eV at 10.1 GPa. Density-functional theory calculations give similar results as the experiments and support that the decrease of the band-gap energy with pressure is caused by the enhancement of the hybridization between O 2p and V 3d state. We have also calculated the elastic constant. According to experiments and calculations BaV2O6·H2O is one of the most compressible vanadates with a bulk modulus of 33.0(5) GPa.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"3 2 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Development of a gold nanoparticle-based colorimetric sensor utilizing cysteine-loaded liposomes in acidic buffer solutions
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00071h
Youkyoung Yang, Joon-Seo Park, Sang-Wha Lee
{"title":"Development of a gold nanoparticle-based colorimetric sensor utilizing cysteine-loaded liposomes in acidic buffer solutions","authors":"Youkyoung Yang, Joon-Seo Park, Sang-Wha Lee","doi":"10.1039/d5dt00071h","DOIUrl":"https://doi.org/10.1039/d5dt00071h","url":null,"abstract":"This study presents the development of a colorimetric sensing system, utilizing gold nanoparticles (AuNPs) and cysteine (Cys)-encapsulated liposomes (CELPs) as sensing probes, that functions in a variety of buffer solutions. Triton X-100 (TX-100), a nonionic surfactant, was used to simulate a biological activity that disrupts the liposome membrane. The Cys released from the CELPs by TX-100 triggered the aggregation of AuNPs, causing a noticeable red-to-blue color change, which was enhanced by Cu<small><sup>2+</sup></small> chelation. The AuNP-CELP/TX-100 system was tested at pH 5–7.4 in various buffers. At neutral pH (7.0–7.4), the system with citrate-capped AuNPs (cit-AuNPs) displayed a distinctive colorimetric response in the presence of Cu<small><sup>2+</sup></small> (0.3 mM), transitioning from red to blue with a UV-vis absorption shift from 525 nm to approximately 660 nm. However, the cit-AuNPs showed a limited stability in acidic buffers, and cetyltrimethylammonium bromide (CTAB)-capped AuNPs (cit-AuNPs-CTAB) were employed as an alternative at acidic pH. Overall, the AuNP-CELP/TX-100 sensing system, utilizing the cit-AuNPs-CTAB and Cu<small><sup>2+</sup></small> chelation for Cys, exhibited the potential to be an effective sensing method working in acidic media. The test results with TX-100, which disrupts the liposome membrane, suggest that this system can be used to visualize diverse biological interactions involving membrane disruption, such as viral attacks, in acidic solutions with diverse ionic compositions.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"71 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695545","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
NHC-Ligated gold nanoparticles derived from cluster precursors for carbon monoxide oxidation reactions
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00601e
Xiao-Ke Feng, Ren Chen, Pei-Qiong Chen, Guan-Di Wang, Peng-Chao Ren, Xiang-Kun Guo, Yujing Weng, Xi-Yan Dong
{"title":"NHC-Ligated gold nanoparticles derived from cluster precursors for carbon monoxide oxidation reactions","authors":"Xiao-Ke Feng, Ren Chen, Pei-Qiong Chen, Guan-Di Wang, Peng-Chao Ren, Xiang-Kun Guo, Yujing Weng, Xi-Yan Dong","doi":"10.1039/d5dt00601e","DOIUrl":"https://doi.org/10.1039/d5dt00601e","url":null,"abstract":"Trinuclear gold clusters functionalized with N-heterocyclic carbene (NHC) ligands were thermally decomposed to form NHC-stabilized gold nanoparticles. By systematically adjusting the substituents and electronic structures of the N-heterocyclic carbenes, the size and Auδ- active sites of the resulting gold nanoparticles was controlled, thereby modulating their catalytic performance in the conversion of CO to CO2 at the minimum temperature of 50 oC with an excellent efficiency.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"9 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143695471","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Relativistic Effect behind the Molybdenum vs. Tungsten Selectivity in Enzymes
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00001g
Udita Das, Ankita Das, Asim Kumar Das
{"title":"Relativistic Effect behind the Molybdenum vs. Tungsten Selectivity in Enzymes","authors":"Udita Das, Ankita Das, Asim Kumar Das","doi":"10.1039/d5dt00001g","DOIUrl":"https://doi.org/10.1039/d5dt00001g","url":null,"abstract":": Molybdenum and tungsten being congeners of the 6th group of d-bock elements are similar in many respects in terms of their properties and in fact, both the molybdoenzymes and tungstoenzymes participate in similar type oxotransferase activity in their enzymes. Molybdenum is found as the heaviest essential trace metal in all forms of life but its next heavier congener, tungsten, as the heaviest metal is found only in some prokaryotic organisms. The tungstoenzymes are generally selected by nature for carrying out the low potential redox activities under the anaerobic conditions in the prokaryotic organisms. This nature’s molybdenum vs. tungsten selectivity for their biological functions under different working conditions (surrounding temperature and aerobic/anaerobic environment) is determined mainly by the relativistic effect which is experienced in different extents by these two congeners. Understanding the mechanistic aspects of the relativistic effect controlled enzymatic activities of the tungstoenzymes is of an immense biotechnological interest to develop the eco-friendly and cost effective methods of commercial synthesis of acetaldehyde through hydration of acetylene, and commercial production of hydrogen (H2, a green fuel) by producing the tungsten incorporated nitrogenase (W-N2-ase) in CA6 (mutant strain), and to develop a biomimetic method to replace the hazardous Birch reduction in organic synthesis, etc.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"215 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677739","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Regioselective Oxidative Bromination of Arenes by Metal-Organic Framework Confined Mono-Bipyridyl Iron(III) Catalyst
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/d5dt00443h
Rahul Kalita, Aditya Kumar, Poorvi Gupta, Bharti Rana, Bitan Sardar, Manav Chauhan, Biplab Ghosh, Yukti Monga, Kuntal Manna
{"title":"Regioselective Oxidative Bromination of Arenes by Metal-Organic Framework Confined Mono-Bipyridyl Iron(III) Catalyst","authors":"Rahul Kalita, Aditya Kumar, Poorvi Gupta, Bharti Rana, Bitan Sardar, Manav Chauhan, Biplab Ghosh, Yukti Monga, Kuntal Manna","doi":"10.1039/d5dt00443h","DOIUrl":"https://doi.org/10.1039/d5dt00443h","url":null,"abstract":"Oxidative bromination of arenes is an effective and environmentally friendly method for synthesizing bromoarenes. We have developed a highly robust zirconium-metal-organic framework (MOF)-supported mono bipyridyl-iron(III) chloride catalyst (bpy-UiO-FeCl3<small><sub></sub></small>) for oxidative bromination of arenes using H2<small><sub></sub></small>O2<small><sub></sub></small> as the oxidant and KBr as the bromine source. The bpy-UiO-FeCl3<small><sub></sub></small> catalyst exhibits high conversion rates for various substituted arenes, yielding significant amounts of bromoarenes with excellent regioselectivity, and recyclability under mild reaction conditions. The MOF-catalyst outperforms its homogeneous counterparts in terms of both activity and regioselectivity due to the stabilization of the mononuclear bipyridyl-iron(III) species within the active sites in the MOF's pores. Furthermore, the confinement of these active sites within the robust, well-defined, and uniform porous framework enhances the regioselectivity of the bromination through shape-selective catalysis. The mechanism of bpy-UiO-FeCl3<small><sub></sub></small> catalyzed oxidative bromination of arenes was thoroughly investigated by a combination of control experiments, spectroscopic analyses, and computational studies. These findings underscore the importance of MOFs in the development of heterogeneous catalysts based on earth-abundant metals for the sustainable synthesis of haloarenes.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"9 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143677775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Main group element compounds in materials and catalysis
IF 3.5 3区 化学
Dalton Transactions Pub Date : 2025-03-24 DOI: 10.1039/D5DT90053K
Selvarajan Nagendran, Ramaswamy Murugavel and Eric Rivard
{"title":"Main group element compounds in materials and catalysis","authors":"Selvarajan Nagendran, Ramaswamy Murugavel and Eric Rivard","doi":"10.1039/D5DT90053K","DOIUrl":"10.1039/D5DT90053K","url":null,"abstract":"<p >A graphical abstract is available for this content</p>","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":" 14","pages":" 5612-5613"},"PeriodicalIF":3.5,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143690619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Straightforward encapsulation of ultrastable CsPbBr3 PQDs and rare-earth emitters in zeolite for ratiometric temperature sensing and wet fingerprint recognition
IF 4 3区 化学
Dalton Transactions Pub Date : 2025-03-21 DOI: 10.1039/d5dt00368g
Zhou Yuan, Yuchi Zhang, Le Han, Yan Xu
{"title":"Straightforward encapsulation of ultrastable CsPbBr3 PQDs and rare-earth emitters in zeolite for ratiometric temperature sensing and wet fingerprint recognition","authors":"Zhou Yuan, Yuchi Zhang, Le Han, Yan Xu","doi":"10.1039/d5dt00368g","DOIUrl":"https://doi.org/10.1039/d5dt00368g","url":null,"abstract":"All-inorganic metal halide perovskite quantum dots (PQDs) hybrids with high stability, multi-model emission and responsive luminescence are of great importance for optical applications. Herein, a dual-emitting CsPbBr<small><sub>3</sub></small>/Si-1:Eu<small><sup>3+</sup></small> composite was successfully prepared by simultaneous encapsulation of CsPbBr<small><sub>3</sub></small> PQDs and EuBr<small><sub>3</sub></small> through a one-step thermal diffusion method. The partial destruction of five-membered rings in Silicalite-1 (Si-1) zeolite resulted from the PbBr<small><sub>2</sub></small> etching effect at high temperatures enhances the bonding formation between Eu<small><sup>3+</sup></small> and Si-OH, leading to the grafting of Eu<small><sup>3+</sup></small> onto Si-1 zeolite framework. The strongly confined CsPbBr<small><sub>3</sub></small> PQDs in CsPbBr<small><sub>3</sub></small>/Si-1:Eu<small><sup>3+</sup></small> exhibit ultrastable green-emission over 30 days of soaking in water. Particularly, the CsPbBr<small><sub>3</sub></small> PQDs and red-light Eu<small><sup>3+</sup></small> emission center display distinct thermal quenching behaviors at elevated temperatures. So the CsPbBr<small><sub>3</sub></small>/Si-1:Eu<small><sup>3+</sup></small> composite can serve as an effective ratiometric thermometer using the fluorescence intensity ratio (FIR) technique, showing a high sensitivity of 3.4 % ℃<small><sup>-1</sup></small> at 54 ℃ and a temperature resolution of less than 0.2 ℃ in the range of 20-100 ℃. The water-stable CsPbBr<small><sub>3</sub></small>/Si-1:Eu<small><sup>3+</sup></small> composite is also suitable for wet fingerprint recognition. This work introduces a straightforward method for preparing dual-emissive CsPbBr<small><sub>3</sub></small>/Si-1: Eu<small><sup>3+</sup></small> composite for multimodal applications.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"59 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143666634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
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