Dalton Transactions最新文献

{"title":"Bulky Bis-Guanidine Ligand Based Neutral and Cationic Zinc Alkyl, Halide, and Hydride Complexes: Synthesis, Characterization, and Catalytic Application","authors":"Rajata Kumar Sahoo, Sayantan Mukhopadhyay, Sagrika Rajput, Achintya Jana, Sharanappa Nembenna","doi":"10.1039/d4dt02907k","DOIUrl":"https://doi.org/10.1039/d4dt02907k","url":null,"abstract":"The tetra-aryl substituted bis-guanidine ligand L(3H) (L(3H) = {(ArHN)(ArNH)-C=N-C=(NAr)(NHAr)}; Ar=2,6-iPr2-C6H3), was used for the synthesis of mononuclear zinc(II) alkyls [L(2H)ZnR, R = Me (Zn-1), Et (Zn-2)], iodide [L(2H)ZnI, (Zn-3)], hydride [L(2H)ZnH, (Zn-4)] complexes. Moreover, the reactions of Zn-1, Zn-2, and Zn-3 with [PhNMe2H]+ [B(C6F5)4]- yielded the biguanide zinc alkyls [L(3H)ZnR]+ [B(C6F5)4]-, R = Me (Zn-5), Et (Zn-6) and iodide [L(3H)ZnI]+ [B(C6F5)4]- (Zn-7) cationic compounds in good yields. All newly isolated and thermally stable zinc complexes (Zn-1 – Zn-7) were well characterized by multinuclear NMR (¹H, ¹³C{¹H}, with additional ¹¹B and ¹⁹F{¹H} for Zn-5 - Zn-7), HRMS, and single crystal X-ray diffraction studies. Moreover, the well-defined zinc iodide cation (Zn-7) [L(3H)ZnI]+ [B(C6F5)4]- was further used as a catalyst for the synthesis of cyanohydrin enol ether products (RCR’CNOSiMe3) by TMSCN addition in carbonyl compounds (RCOR’, R’ = alkyl/aryl) under mild reaction conditions.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"20 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145067961","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}

{"title":"Triggering the intrinsic catalytic activity of electrodeposited CoNiFe LDH via Pt decoration for an efficient hydrogen evolution reaction","authors":"S. Vijaya, L. John Kennedy","doi":"10.1039/d5dt01617g","DOIUrl":"https://doi.org/10.1039/d5dt01617g","url":null,"abstract":"Hydrogen is widely recognized as a clean and sustainable energy carrier, and the development of efficient, durable electrocatalysts for the hydrogen evolution reaction (HER) remains a key challenge in realizing large-scale hydrogen production. In this study, we report a two-step synthesis of a platinum decorated CoNiFe layered double hydroxide (Pt@CNF) electrocatalyst, engineered to enhance HER performance. Field-emission scanning electron microscopy (FE-SEM) confirms the uniform distribution of Pt nanoparticles on CoNiFe LDH (CNF) nanosheets. The incorporation of Pt, possessing an optimal hydrogen adsorption energy, significantly reduces the overpotential from 215 mV (CNF) to 117 mV (Pt@CNF) at a current density of 10 mA cm<small>⁻²</small>. The enhanced intrinsic activity of Pt@CNF is further evidenced by a substantial increase in turnover frequency (TOF) from 7.1 × 10<small>⁻³</small> s<small>⁻¹</small> to 14.6 × 10<small>⁻³</small> s<small>⁻¹</small>. Additionally, Pt@CNF exhibits a larger electrochemical surface area (ECSA) and higher active ECSA (<em>A</em><small>_ECSA</small>) compared to pristine CNF, reflecting the greater density of accessible catalytic sites. The synergy between Pt and the CNF matrix improves both charge transfer kinetics and catalytic durability, enabling Pt@CNF to deliver low overpotentials of 298, 370, and 441 mV at high current densities of 100, 200, and 400 mA cm<small>⁻²</small>, respectively. These findings highlight the potential of Pt@CNF as a high-performance HER electrocatalyst for next-generation hydrogen production technologies.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"67 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145067924","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}

{"title":"Heteroleptic Tethered NHC Rare Earth Initiators for the Ring Opening Polymerisation of rac-Lactide","authors":"Joseph W. Walker, Tajrian Chowdhury, Georgina Rosair, Joy Farnaby, Stephen M Mansell, Ruaraidh D McIntosh","doi":"10.1039/d5dt01352f","DOIUrl":"https://doi.org/10.1039/d5dt01352f","url":null,"abstract":"The importance of catalyst design is shown by the contrasting reactivity of tethered NHC and Tp ligands with rare-earth metal centres highlighting that successful catalyst design is not as simple as linearly combining moieties with known catalytic activity. The heteroleptic fluorenyl-tethered-NHC rare-earth complexes LnLX<small>₂</small> [Ln = Y, La, Ce, Nd; L = (η<small>⁵</small>-C<small>₁₃</small>H<small>₈</small>)C<small>₂</small>H<small>₄</small>N(κ-C)C<small>₂</small>H<small>₂</small>NMe; X = N″ or Br] were synthesised from [Ln{N(SiMe<small>₃</small>)<small>₂</small>}<small>₃</small>] (LnNʹʹ<small>₃</small>), with X selected by varying the precursor. Direct addition of LnN″<small>₃</small> to the fluorene-tethered imidazolium salt LH<small>₂</small>Br proceeded with loss of two equivalents of HN(SiMe<small>₃</small>)<small>₂</small> forming [LnL(N″)Br] complexes; alternatively, initial deprotonation of LH<small>₂</small>Br with <small>^<em>n</em></small>BuLi or KCH<small>₂</small>Ph prior to addition of LnNʹʹ<small>₃</small> yielded [LnL(Nʹʹ)<small>₂</small>] complexes. [LnL(Nʹʹ)Br] [Ln = Ce (<strong>3</strong>), Nd (<strong>4</strong>)] are dimeric through bridging Br ligands whereas [LnL(Nʹʹ)<small>₂</small>] [Ln = La (<strong>5</strong>), Ce (<strong>6</strong>), Nd (<strong>7</strong>)] are monomeric. These complexes were investigated for their activity and selectivity in the ring opening polymerization (ROP) of <em>rac</em>-lactide using benzyl alcohol as a co-initiator, showing high activity with full conversion typically being obtained in under 15 minutes at room temperature. Comparisons with the yttrium amide complex [Y(Tp)<small>₂</small>(Nʹʹ)] (<strong>8</strong>, Tp = hydrotris(1-pyrazolyl)borate) demonstrated the important role of the fluorenyl-tethered NHC ligand in generating an active catalyst, illustrating that simply having a rare-earth metal centre with a bis(trimethylsilyl)amide group is not enough to generate an effective (pre)catalyst. Finally, we hope to raise awareness that a trace impurity of lactic acid, sometimes present in commercial rac-lactide, greatly inhibited ROP and was not easily removed by sublimation or re-crystallisation.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"42 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145067959","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}

{"title":"Upconversion luminescence and temperature sensing of Dy3+ and Yb3+ codoped Bi2WO6 powder in aqueous environments","authors":"Jiachen Shi, Linxiang Wang, Mengliang Jiang, Xin Feng, Yan Zhang","doi":"10.1039/d5dt01331c","DOIUrl":"https://doi.org/10.1039/d5dt01331c","url":null,"abstract":"x%Dy3+, y%Yb3+: Bi2WO6 (x=0.5, 1, 3, 5; y=1, 6, 10, 15) upconversion luminescent powders were prepared using a high-temperature solid-phase method. X-ray diffraction experiments revealed that moderate amounts of Dy3+ and Yb3+ doping essentially did not affect the orthorhombic crystal system structure of the Bi2WO6 matrix materials. SEM photos and EDS granularity analysis showed that the particles size of the synthesized 0.5% Dy3+, 10% Yb3+: Bi2WO6 powder was between 0.5-6 μm, and SEM mapping and EDS energy spectra revealed that all the elements were better distributed in the sample. Under 980 nm excitation, the upconversion luminescence of Dy3+ in the powder was the strongest when the molar fractions of Dy3+ and Yb3+ were 0.5% and 10%, respectively. From 10 mW to 100 mW, the emission light intensity I and the excitation power Pn of Dy3+ in this sample were linear. The absorbed photon numbers n were 2.63 and 2.65, as calculated from the 546 nm and 660 nm emission peaks of Dy3+ in this excitation power range, which indicated that the above two emissions originated from three-photon absorption. Under 980 nm excitation (100 mW), the 660 nm/546 nm fluorescence intensity ratio of the 0.5% Dy3+, 10% Yb3+: Bi2WO6 powder was used to characterize the temperature, the relative thermometry sensitivity Sr was obtained with a maximum of 0.0151 K-1 (423 K), and the minimum temperature resolution was 0.58 K. Chromaticity coordinates revealed that the luminescence of this powder shifted from the green to the yellow region first and then gradually to the red region as the temperature increased. This result indicated that the powder sample synthesized in this work has potential applications in thermochromic optical anticounterfeiting. Under 980 nm excitation (380 mW), for the 60.7 NTU sample in an aqueous environment, from 331 K to 298 K, the temperature was characterized by the fluorescence intensity ratio of 660 nm /546 nm. The obtained maximum Sr was 0.0868 K-1 (323 K), and the minimum temperature resolution was 3.03 K.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"1 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059299","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}

{"title":"N-Heterocyclic Silylene Complexes of Nickel(0)","authors":"Eduard Glok, Luis Werner, Udo Radius","doi":"10.1039/d5dt01887k","DOIUrl":"https://doi.org/10.1039/d5dt01887k","url":null,"abstract":"Reactivity studies on the nickel complex [Ni(Mes2NHSi)2(COD)] (1), ligated with the N-heterocyclic silylene 1,3-bis(2,6-dimesityl)-1,3-diaza-2-silacyclopent-4-en-2-ylidene (= Mes2NHSi; COD = cyclooctadiene) are presented. Treatment of 1 with two equivalents of the phosphines PMe3, PEt3, PnBu3, and the N-heterocyclic carbene 1,3,4,5-tetramethyl-imidazolin-2-ylidene (IMeMe) led to substitution of the COD (and not the NHSi) ligand to yield the heteroleptic substituted complexes [Ni(Mes2NHSi)2(L)2] (L = PMe3 (2), PEt3 (3), PnBu3 (4), IMeMe (5)) in good yields. The reaction of [Ni(Mes2NHSi)2(COD)] with IiPrMe (1,3-diisopropyl-4,5-dimethyl-imidazolin-2-ylidene) and the reaction of [Ni(IiPrMe)2(η2-COE)] (COE = cyclooctene) with Mes2NHSi afforded mixtures of heteroleptic three-coordinated nickel complexes [Ni(Mes2NHSi)2(IiPrMe)] (6) and [Ni(Mes2NHSi)(IiPrMe)2] (7). Complex 1 reacts with carbon monoxide also under substitution of the COD ligand to afforded mixtures of mononuclear [Ni(Mes2NHSi)2(CO)2] (8) and dinuclear, silylene-bridged [{Ni(μ-Mes2NHSi)(CO)2}2] (9). Treatment of [Ni(CO)4] with Mes2NHSi led to formation of the complexes 8 and 9, and, in addition, to the trinuclear Chini-type cluster complex [Ni3(μ-Mes2NHSi)2(μ-CO)2(CO)3] (10). In contrast to known related complexes of NHCs, complex 1 does not react with aryl fluorides and aryl chlorides and decomposes in the reaction with organyl bromides and iodides.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"24 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059309","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}

{"title":"Nanoporous CoSe2 Polyhedron Imbedded Graphene as a Highperformance Sodium-ion Battery Anode Material","authors":"Shujie Liu, Haiguang Guo, Bohao Wang, Liang Qiao, Xiaoying Hu, Junzhi Li","doi":"10.1039/d5dt01923k","DOIUrl":"https://doi.org/10.1039/d5dt01923k","url":null,"abstract":"Sodium-ion batteries (SIBs) emerge as a promising candidate with the virtue of abundant sodium resources and low costs of sodium salts. CoSe<small>₂</small> as the anode material has attracted much attention because of its high theoretical capacity. However, the low conductivity of CoSe<small>₂</small> severely still hinder their application. Herein, we fabricated a graphenecrosslinked CoSe<small>₂</small> polyhedron composite material (CoPG) by utilizing graphene as the conductive framework and MOFderived CoSe<small>₂</small> as the active component for energy storage. The carbon layer derived from MOF can effectively inhibit polyselenide dissolution and, in combination with graphene, construct a double-carbon-layer conductive network that facilitates electron transport. As a result, the as-prepared CoPG3 can deliver a high reversible capacity of 565 mAh g<small>^-1</small> at 0.05 C. After 100 cycles, its capacity is remained 87% at 0.5 C. This work provides a new insight to the relationship between the conductivity and performance of electrode materials for SIBs.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"69 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059311","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}

{"title":"A click grafted cobalt complex on chloromethyl polystyrene for the catalytic cycloaddition reaction of CO2 with epoxides","authors":"Zahra Khazaei and Maryam Mohammadikish","doi":"10.1039/D5DT01670C","DOIUrl":"10.1039/D5DT01670C","url":null,"abstract":"<p >The increasing amount of CO<small>₂</small> in the atmosphere has a great impact on all living systems. Therefore, society and researchers are paying enormous attention to the control, storage, and utilization of this greenhouse gas. Preparing valuable cyclic carbonates from epoxides and CO<small>₂</small> has attracted significant attention due to its 100% atom economy. Here, chloromethyl polystyrene (CMPS) containing –CH<small>₂</small>Cl functional groups was used as a support for immobilizing a cobalt-based complex for catalyzing the reaction of CO<small>₂</small> and epoxides. Functionalization of –CH<small>₂</small>Cl with propargyl alcohol through the nucleophilic attack of oxygen groups on –CH<small>₂</small>Cl motifs produced alkyne-functionalized-PS for the subsequent alkyne–azide click reaction. On the other hand, an azide-containing part was obtained by preparing the [Co(bpy)<small>₂</small>(N<small>₃</small>)<small>₂</small>] complex, which was subjected to a click reaction with alkyne functionalized-PS to achieve the final catalyst. The synthesized catalyst played an efficient catalytic role in the CO<small>₂</small>/epichlorohydrin cycloaddition reaction without using any co-catalyst, halide, or solvent (conversion of 100% at 130 °C and 4 h). This catalyst also has great performance in the presence of various epoxides.</p>","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":" 38","pages":" 14513-14521"},"PeriodicalIF":3.3,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059207","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}

{"title":"A bioinspired hetero-binuclear iron-molybdenum complex supported by tridentate sulfur donors and its catalytic activity toward hydrazine disproportionation","authors":"Xiang Xu, Ronghuan Du, Luyang Sun, Dawei Yang, Baomin Wang, Jingping Qu","doi":"10.1039/d5dt01575h","DOIUrl":"https://doi.org/10.1039/d5dt01575h","url":null,"abstract":"A bioinspired thiolate-bridged iron-molybdenum complex was designed and synthesized, featuring similar structural motifs as found in the {FeS3Mo} moiety of FeMoco. Spectroscopic and computational studies reveal it contains a low-spin FeII and a MoIV centre with weak metal-metal bonding. Furthermore, it is proven as a good catalyst for hydrazine disproportionation.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"76 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059307","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}

{"title":"Oxygen Vacancy-Rich Co-Doped V2O5 as a High-Performance Cathode for Aqueous Zinc-Ion Batteries","authors":"Wei Cao, Chenhan Xiong, Yanqiu Yu, Xiang Ji, Hao Xu, Yingge Guo, Ziwei Chen, Jun Chen","doi":"10.1039/d5dt01909e","DOIUrl":"https://doi.org/10.1039/d5dt01909e","url":null,"abstract":"Developing high-performance cathode materials is crucial for advancing aqueous zinc-ion batteries (AZIBs). In this work, we report a Co-doped V2O5 (CoVO) material engineered with abundant oxygen vacancies (Od -CoVO) via a simple calcination process. Structural analyses confirm that cobalt is substitutionally incorporated without disrupting the V2O5 crystal framework, while oxygen vacancies are successfully introduced to modulate the electronic environment. The combined effects of cobalt doping and oxygen vacancies enhance electronic conductivity, provide additional Zn2+ adsorption sites, and facilitate ion diffusion. As a result, the Od -CoVO electrode delivers a high specific capacity, excellent rate performance, and outstanding long-term cycling stability compared to pristine CoVO. These findings demonstrate that defect engineering offers a promising pathway for optimizing vanadium-based cathodes for next-generation AZIBs.","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"124 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059301","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}

{"title":"Random Metamaterials with Double Negative Electromagnetic Parameters in Dense CuCr2Se4-CoCr2Se4 Binary Spinels","authors":"Jun Cao, Chengsheng Wang, Zechao Xu, Kelan Yan, Liming Shen, Zhen Huang, Lingjie Zhang, Runhua Fan, Ningzhong Bao","doi":"10.1039/d5dt01531f","DOIUrl":"https://doi.org/10.1039/d5dt01531f","url":null,"abstract":"Metamaterials exhibiting simultaneous negative permittivity (ε&lt;0) and negative permeability (µ&lt;0) offer exceptional electromagnetic properties, enabling advanced applications such as subwavelength imaging, wireless power transfer, and advanced antenna systems. Chromium-based selenium spinel composites have emerged as promising candidates for random double-negative metamaterials (DNMs), although achieving tunable and desired double-negative characteristics remains challenging. Here, CoCr2Se4, distinguished by high magnetic spin resonance in high-frequency fields and low conductivity, was selected to modulate the electromagnetic properties of CuCr₂Se₄-based composites. A series of (1-x)CuCr2Se4·xCoCr2Se4 samples were synthesized via a solid-state reaction. Double-negative properties (ε′ᵣ &lt; 0, μ′ᵣ &lt; 0) were achieved in the MHz frequency ranges, specifically within 841–1000 MHz for x = 0.2, 638–1000 MHz for x = 0.4, and 484–1000 MHz for x = 0.6. The negative permittivity arises from the plasma oscillations of delocalized carriers, well described by the Drude model. Meanwhile, negative permeability is explained through the suppression of eddy currents–due to the low conductivity of CoCr2Se4–which mitigates skin-depth limitations and enhances magnetic resonance. This composite design not only reduces electromagnetic attenuation but also improves magnetic responsiveness under alternating fields. By clarifying the selection rationale for metallic ferromagnetic spinel composites, this work enhances the theoretical understanding and tuning mechanisms of negative ε and µ. It thereby broadens the scope of metamaterial research and facilitates the development of single-phase double-negative materials, especially for low-frequency near-field applications","PeriodicalId":71,"journal":{"name":"Dalton Transactions","volume":"66 1","pages":""},"PeriodicalIF":4.0,"publicationDate":"2025-09-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145059306","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}