Journal of Chemical Sciences最新文献

{"title":"Thin films of azobenzene dicarboxylate-based Cu-MOF: Generating electronic heterostructure by molecular doping","authors":"Sauvik Saha,&nbsp;Therese Mariya Jose,&nbsp;Mini Kalyani,&nbsp;Nahid Hassan,&nbsp;Umashis Bhoi,&nbsp;Ajay Ugale,&nbsp;Nirmalya Ballav","doi":"10.1007/s12039-025-02365-y","DOIUrl":"10.1007/s12039-025-02365-y","url":null,"abstract":"<div><p>Circumventing the limitations of lattice-mismatch factors in usual heterostructured thin films of metal-organic frameworks (MOFs), recent studies have achieved exotic electronic heterostructures for possible next-generation thin film device applications. This study reports a robust strategy to significantly enhance the conductivity in thin films of 4,4′-azobenzene dicarboxylate (ADA) linker-based 1D Cu-MOF while also creating an electronic heterostructure system in the process and explores how photoexcitation might perturb its electrical transport behaviour.</p><h3>Graphical abstract</h3><p>Fabrication of highly-uniform and crystalline thin films of 4,4′-azobenzene dicarboxylate (ADA) linker-based Cu-MOF, referred to as Cu-ADA thin films, through a layer-by-layer (LbL) method is reported. Molecular doping of TCNQ (tetracyanoquinodimethane) in Cu-ADA thin films led to the formation of an electronic heterostructure exhibiting rectification of current and enhancement of electrical conductance in the cross-plane and in-plane configurations, respectively.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735386","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}

{"title":"Exploration of novel quinoline derivatives: Anticancer potential revealed through design, synthesis and biological evaluation","authors":"Janaiah Chevula,&nbsp;Saikrishna Balabadra,&nbsp;Ramakrishna Munnaluri,&nbsp;Vijjulatha Manga","doi":"10.1007/s12039-025-02362-1","DOIUrl":"10.1007/s12039-025-02362-1","url":null,"abstract":"<p>A novel series of quinoline derivatives were designed and synthesized for anticancer activity targeting epidermal growth factor receptor (EGFR) tyrosine kinase. The structures of all synthesized derivatives were confirmed by ¹H-NMR, ¹³C-NMR, FTIR and mass spectrometry. Most of the compounds showed good activity against MCF-7 and HeLa cancer cell lines. Compound <b>4a</b> showed good antiproliferative activity against MCF-7 (IC₅₀ <span>(=)</span> 36.07 μM) and HeLa (IC₅₀ <span>(=)</span> 17.06 μM) cancer cell lines. Moreover, molecular docking and Prime/MM-GBSA results showed that compound <b>4a</b> formed hydrogen bonds with Met 769 and Asp 831 residues of EGFR tyrosine kinase (PDB ID: 1M17).\u0000</p>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143735385","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}

{"title":"Novel 6-amino-5-cyano [2,2′/2,3′/2,4′-bipyridin]-4-yl-triphenylamine dyes anchored on cadmium sulphide nanowires: Optical, electrochemical and photovoltaic applications","authors":"Ahmedraza Mavazzan,&nbsp;Avinash C Mendhe,&nbsp;Praveen K Bayannavar,&nbsp;Babasaheb R Sankapal,&nbsp;Vishwa B Nadoni,&nbsp;Suresh F Madar,&nbsp;Ravindra R Kamble,&nbsp;K M Mussuvir Pasha,&nbsp;Barnabas Kodasi","doi":"10.1007/s12039-025-02357-y","DOIUrl":"10.1007/s12039-025-02357-y","url":null,"abstract":"<div><p>This article explores the green synthesis methodology for a novel class of electron-rich 6-amino-5-cyano [2,2′/2,3′/2,4′-bipyridin]-4-yl-triphenylamine compounds. Employing microwave-assisted techniques and environmentally benign solvents, we have significantly reduced the environmental footprint of the synthetic process. The synthesized compounds exhibit promising optical and electrochemical properties, making them potential candidates as sensitizers for dye-sensitized solar cells (DSSCs). The density functional theory (DFT) calculations and EQE measurements corroborate the experimental findings, suggesting the potential of these compounds for DSSC application by anchoring on one-dimensional CdS nanowires. This study underscores the importance of green chemistry principles in developing sustainable and environmentally friendly materials for energy applications.</p><h3>Graphical abstract</h3><p>This work enhances the use of microwaves in green chemistry to synthesize novel substances while reducing the use of dangerous solvents and energy consumption. These compounds exhibit promising qualities as dye-sensitized solar cell (DSSC) sensitizers due to their remarkable optical and electrochemical characteristics. The outcomes support DFT and EQE studies.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698623","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}

{"title":"Design and synthesis of C-α-D-mannopyranoside linked mesoporous silica nanoparticles","authors":"Hemanth K Nechooli,&nbsp;Vilas Ramtenki,&nbsp;Chepuri V Suneel Kumar,&nbsp;B L V Prasad,&nbsp;Chepuri V Ramana","doi":"10.1007/s12039-024-02338-7","DOIUrl":"10.1007/s12039-024-02338-7","url":null,"abstract":"<div><p>Mannose functionalized mesoporous silica nanoparticles (MSNs) offer a promising approach for developing more targeted, effective, and safer cancer therapies. For many of the applications, immobilization of carbohydrates like mannose onto MSNs is a crucial aspect, and in most cases, mannose moieties are connected through <i>O</i>-glycosidic linkages that are susceptible to acidic/enzymatic hydrolysis. To generate a stable mannose-functionalized MSN, we designed a novel <i>C</i>(14)-<i>α</i>-mannosylated tetradeca-1-yne. The key steps involved in the synthesis of <i>C</i>-mannosylated alkyne are C1-alkynylation of tri-<i>O</i>-acetyl-D-glucal with 1-trimethylsilyl-tetradec-1-yne, followed by stereoselective dihydroxylation and the isomerization of the internal triple bond to a terminal position. This mannose ligand was then immobilized onto azidopropyl-functionalized SBA-15 through the Cu(I)-catalyzed azide-alkyne click (CuAAC) reaction. Various physical techniques such as low-angle powder XRD, N₂ adsorption isotherms (BET), Fourier transform infrared (FTIR), high-resolution transmission electron microscopy (HRTEM), field emission scanning electron microscopy (FE-SEM), and thermogravimetric analysis (TGA) have been employed to characterize this <i>C</i>-mannosyl SBA-15 silica matrix. We evaluated the binding ability of <i>C</i>-mannosyl SBA-15 nanoparticles by using fluorescein-labelled Con-A as a target protein.</p><h3>Graphical abstract</h3><p>We document the synthesis of a novel novel <i>C</i>(14)-<i>α</i>-mannosylated tetradeca-1-yne from tri-<i>O</i>-acetyl-D-glucal its immobilization onto azidopropyl-functionalized SBA-15 through the Cu(I)-catalyzed azide-alkyne click (CuAAC) reaction. The successfully immobilization of mannosyl units on SBA-15 and retention of the pore structure of SBA-15 after the incorporation of the organic molecules has been established with the help of various physical techniques and the binding ability of <i>C</i>-mannosyl SBA-15 nanoparticles by using fluorescein-labeled Con-A as a target protein.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698627","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}

{"title":"Synthesis of 4-propyl phenol from bio-based eugenol via hydrogenation and demethoxylation using novel Ni–Co/Al-SBA-15 catalysts","authors":"Harsha M Dhanwani,&nbsp;Ganapati D Yadav","doi":"10.1007/s12039-024-02321-2","DOIUrl":"10.1007/s12039-024-02321-2","url":null,"abstract":"<div><p>Fuels and energy produced from biomass are viable options for cutting carbon footprints and lessening environmental effects. One important phenolic molecule that may be extracted from lignocellulosic biomass is eugenol, which has a variety of industrial uses and can be used as a precursor to bio-based Industrial important compounds. This work investigates the utilization of a unique Ni–Co/Al-SBA-15 heterogeneous catalyst to convert eugenol into 4-propylphenol, a multifunctional chemical with use as an antioxidant, flavouring agent, and disinfectant. With 93% yield of 4-propylphenol, the catalyst demonstrated an astounding 100% conversion rate in an isopropanol medium when operated at optimal conditions of 230°C and 30 bar of pressure. Using a variety of characterization techniques, the catalyst activity, selectivity and stability were carefully evaluated, and reaction conditions were adjusted for the best outcomes. The activation energy was ascertained using a kinetic model and the reaction mechanism proposed. The catalyst durability and reusability emphasize its economic viability and fits into the principles of green chemistry that emphasize its environmental sustainability. The results of this study address the need for renewable energy sources with low environmental impact worldwide and progress in the development of cleaner, more effective methods of utilizing biomass as feedstock for chemicals, fuels and materials.</p><h3>Graphical abstract</h3><p>Selective conversion of eugenol to 4-propyl phenol using 5 wt% Ni–Co/Al-SBA-15 catalyst is reported here. Derived from non-edible biomass lignin, this green process yields fragrance and flavoring agents. It is a clean and green process, utilizing a robust reusable catalyst achieving high selectivity and yield.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698653","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}

{"title":"Ruthenium catalyzed deaminative coupling of primary amines to secondary amines","authors":"Deepsagar Manikpuri,&nbsp;Jugal Kishore,&nbsp;Chidambaram Gunanathan","doi":"10.1007/s12039-024-02343-w","DOIUrl":"10.1007/s12039-024-02343-w","url":null,"abstract":"<div><p>A mono-hydrido bridged dinuclear ruthenium complex, [{(<i>η</i>6-<i>p</i>-cymene)RuCl₂(<i>μ</i>-H-<i>μ</i>-Cl)] catalyzed deaminative coupling of primary amines to secondary amines is reported. Both benzylic and aliphatic primary amines are amenable in the catalysis, which delivers the symmetrical secondary amines. Catalytic synthesis of unsymmetrical secondary amines is attained upon employing anilines and different primary amines in which the anilines are alkylated by the primary amines. Notably, the catalysis does not require any additives or base. Reaction pathway involving N–H activation of primary amines leading to the formation of cationic ruthenium hydride intermediate in which the <i>β</i>-hydride elimination generates the imine ligand followed by intermolecular nucleophilic addition by primary amines that produces the secondary amines is proposed as a possible reaction mechanism. Ammonia is the only by-product in this transformation.</p><h3>Graphical abstract</h3><p>\u0000A bridged dinuclear ruthenium complex, [{(<i>η</i>6-<i>p</i>-cymene)RuCl₂(<i>μ</i>-H-<i>μ</i>-Cl)] catalyzed deaminative coupling of primary amines to secondary amines is reported. The mechanism involves N–H activation of primary amines leading the formation of cationic ruthenium hydride intermediate where the β-hydride elimination generates the imine ligand followed by intermolecular nucleophilic addition by primary amines. </p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143698628","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}

{"title":"Synthesis of glycerol acetins as fuel additives: Acetylation of glycerol with SnTPA catalyst","authors":"K Jagadeeswaraiah,&nbsp;M Malyaadri,&nbsp;K Damodar Reddy","doi":"10.1007/s12039-025-02359-w","DOIUrl":"10.1007/s12039-025-02359-w","url":null,"abstract":"<div><p>This study focused on the synthesis and characterization of tin-exchanged heteropolytungstate (Sn_<i>x</i>TPA) catalysts, which were tested for their efficacy in acetylation of glycerol with acetic acid. The Sn_<i>x</i>TPA catalysts showed significantly enhanced activity compared to the original TPA catalyst, especially for glycerol acetin synthesis. The catalytic performance was strongly correlated with the degree of tin exchange with heteropolytungstate protons. Partially exchanged Sn₁TPA catalyst showed the highest activity owing to variations in acidity. Surface and structural properties of Sn_<i>x</i>TPA catalysts were found to influence their catalytic activities.</p><h3>Graphical Abstract</h3><p>Acetylation of glycerol to biofuel additives is achieved using heteropoly tungstate exchange on tin solid catalyst. The role of catalysts and both Bronsted and Lewis acidity on glycerol acetylation was demonstrated.</p>\u0000<div><figure><div><div><picture><img></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143645471","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}

{"title":"Synthesis, characterization, and biological evaluation of a β-amino carbonyl and its metal complexes using guanine hydrochloride catalyst","authors":"Mohit Panwar,&nbsp;Shweta Chand Thakuri,&nbsp;Vijay Kumar Juyal,&nbsp;Virendra Kasana,&nbsp;Viveka Nand","doi":"10.1007/s12039-024-02342-x","DOIUrl":"10.1007/s12039-024-02342-x","url":null,"abstract":"<div><p>In this study, we synthesized 3-(4-chlorophenyl amino)-1,3-diphenyl propane-1-one and its Cu(II), Zn(II), and Ni(II) metal complexes using the novel catalyst, guanine hydrochloride. The synthesized compounds were characterized using UV–Vis, FT-IR, HRMS, elemental analysis, ¹HNMR, and ¹³CNMR techniques. Subsequently, the antioxidant and antibacterial potential (biological activity) of the compounds were evaluated. Antioxidant activity was assessed using DPPH radical scavenging, H₂O₂ hydroxyl scavenging, and FRAP assay methods, while antibacterial activity was determined via disc-diffusion method against gram-positive (<i>Bacillus subtilis</i> and <i>Staphylococcus aureus</i>) and gram-negative (<i>Erwinia amylovora</i> and <i>Escherichia coli</i>) bacteria. Ligand–protein interactions were examined using molecular docking studies. Guanine hydrochloride, the catalyst used, improved reaction time and operated under room temperature, and was easily removed. The ligand exhibited superior antioxidant potential (IC₅₀ = 470.916 ± 0.30 ppm) compared to its metal complexes in all three assays. Among the tested compounds, the Cu(II) metal complex showed the largest zone of inhibition (4–9.9 mm) against all bacteria. The metal complexes displayed better binding energy than the ligand, proving the compounds’ candidacy for future therapeutic applications.</p><h3>Graphical abstract</h3><p>Benzaldehyde, <i>p</i>-chloroanilines and acetophenone were allowed to react in this multi-component reaction to form <i>b</i>-amino carbonyl. Metal salts of Cu(II), Zn(II) and Ni(II) were mixed with the ligand to form metal-ligand complexes. The formed products were tested for their anti-oxidant and antibacterial activity, which showed appreciable results.\u0000</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612007","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}

{"title":"Facile synthesis of nanostructured Co3O4 using cobalt fumarate as the precursor and its catalytic exploration in the selective oxidation of benzyl alcohol","authors":"Ruhul Amin Bepari,&nbsp;Monsumi Gogoi,&nbsp;Nabajyoti Mochahari,&nbsp;Saurav Paul,&nbsp;Birinchi Kumar Das","doi":"10.1007/s12039-024-02344-9","DOIUrl":"10.1007/s12039-024-02344-9","url":null,"abstract":"<div><p>Nanoscale cobalt oxide with particle size of 12–17 nm was prepared via a facile calcination route using cobalt fumarate as the precursor. The one-step method involves the simple calcination of cobalt fumarate precursor at temperatures 400–600°C. The crystallographic phase purity and other microstructural characteristics are thoroughly investigated using several physical techniques, including, powder XRD, SEM, TEM, and UV-visible and IR spectroscopy. Among the prepared oxides, Ru-supported Co₃O₄ demonstrated remarkable catalytic activity in the oxidation of benzyl alcohol using TBHP as an oxidant. The Ru-supported catalyst gives 95% alcohol conversion with 97% selectivity for benzaldehyde and can be recycled for several consecutive runs without major loss of activity.</p><h3>Graphical abstract</h3><p>\u0000Cobalt fumarate precursor is calcined at four different temperatures <i>viz.</i> 400–600°C to synthesize nanoscale cobalt oxide. The trace of Ru is doped to enhance the catalytic performance of cobalt oxide in the oxidation of benzyl alcohol using TBHP. Ru@Co₃O₄ gives almost complete alcohol conversion with excellent selectivity for benzaldehyde and reusability.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612080","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}

{"title":"Effect of conjugation in photophysics of methoxycinnamate","authors":"Kartik Chandra Pal,&nbsp;Somsuta Ray,&nbsp;Debashree Ghosh","doi":"10.1007/s12039-025-02349-y","DOIUrl":"10.1007/s12039-025-02349-y","url":null,"abstract":"<div><p>Methoxycinnamates, especially octyl methoxycinnamate, are common active ingredients in sunscreens. Its photoprocesses have experimentally shown ultrafast quenching of UV-B light and photoproduct formation and eventual degradation. It is known to absorb intensely around 310 nm. However, the molecular origin and mechanism of these photoprocesses and excited state channels remain elusive. Due to these reasons, it is imperative to study the molecular mechanism of the excited state photoactivated reactions of octyl methoxycinnamate and compare it to several molecules with similar structural motifs. The excited state quenching mechanism and molecular pathways need to be elucidated along with the effect of different structural motifs on its excited states. Therefore, in this work, we have studied the photoprocesses of methoxycinnamates using state-of-the-art multireference methods. We find a crucial role played by the extended conjugation and the ester group on the excitation energies, and this is, therefore, expected to have a significant effect on the quenching pathways.</p><h3>Graphical Abstract</h3><p>Para methoxymethylcinnamate, an active ingredient in sunscreens, gets photoexcited at around 310 nm. In this work, we have investigated its photoprocesses. Energetically accessible conical intersections favour its non-radiative decay to the ground state. Comparing molecules sharing a similar structural motif, we find that extended conjugation plays a vital role.</p>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":616,"journal":{"name":"Journal of Chemical Sciences","volume":"137 2","pages":""},"PeriodicalIF":1.7,"publicationDate":"2025-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143612079","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}