Physical Chemistry Chemical Physics最新文献

{"title":"High-resolution UV spectroscopy of the chiral molecule 1-phenylethanol","authors":"Shilpa Yadav, Ju Hyeon Lee, Gerard Meijer, Sandra Eibenberger-Arias","doi":"10.1039/d5cp02854j","DOIUrl":"https://doi.org/10.1039/d5cp02854j","url":null,"abstract":"The rotationally resolved excitation spectrum of the S<small>₁</small> ← S<small>₀</small> electronic transition of the chiral molecule 1-phenylethanol is measured via laser-induced fluorescence detection in a cold, seeded molecular beam. The rotational constants and structure of the S 1 state are determined by fitting 419 spectral lines. The transition dipole moment is found to have predominant projections along the b and a inertial axes with only a small contribution along the c-axis, in agreement with ab initio calculations. Using two-color (1+1') resonance-enhanced multiphoton ionization the S<small>₁</small> excited state lifetime is determined as 70 ± 18 ns.","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":"88 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145141048","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":"Plexcitons in metal Nanotriangle-WS2 Composite System Studied by Electron Energy Loss Spectroscopy","authors":"Rongyue Yao, Yuan Zhang, Changlin Zheng, Luxia Wang","doi":"10.1039/d5cp02397a","DOIUrl":"https://doi.org/10.1039/d5cp02397a","url":null,"abstract":"Strong coupling between plasmons and excitons in transition metal dichalcogenides enables roomtemperature plexciton formation, providing a crucial platform for investigating Bose-Einstein condensation, low-threshold nanolasers, and ultrafast optical switches. Plexcitons can be produced by far-field optical excitation and near-field electron beam excitation, while electron beam excitation enables the detection of dark plasmon modes and their spatial imaging. Using the boundary element method with a coupled harmonic oscillator model, electron energy loss spectroscopy of silver nanotriangle, WS<small>₂</small> , and their composite system is simulated. Our numerical results are consistent with the corresponding experiments. From the charge distributions of silver nanotriangle in electron beam excitation, the dipole configurations corresponding to bright and dark plasmon modes are identified. Additionally, spatial imaging maps of electron loss from plexcitons are simulated, and the proportions of plasmon and exciton in plexciton produced by different detunings are analyzed theoretically. This study provides guidance for further experimental and theoretical research on strong coupling in analogous composite systems.","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":"30 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133511","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":"Boosting hydrazine electrooxidation on Ru-coordinated heteronuclear double metal atoms catalysts","authors":"Zhengfeng Zhang, Zhonghui Gao, Yanqin Liang, Hui Jiang, Zhaoyang Li, Zhenduo Cui, Enzuo Liu, Shengli Zhu, Wence Xu","doi":"10.1039/d5cp03046c","DOIUrl":"https://doi.org/10.1039/d5cp03046c","url":null,"abstract":"The hydrazine oxidation reaction (HzOR) is considered as an efficient alternative anodic reaction to the oxygen evolution reaction for low-energy hydrogen production. Consequently, developing the highly efficient electrocatalysts for HzOR is a critical enabling step. By using density function theory (DFT) calculations, we evaluate the HzOR activity of dual-metal atoms catalysts (DACs), specifically Ru coordinated with 3d ~ 5d transition metals, anchored on nitrogen-doped graphene (RuM@N<small>₆</small>C, where M = Ti ~ Cu, Zr ~ Mo, Ru ~ Pd, W, Ir and Pt). Among these DACs, the RuCo@N<small>₆</small>C and RuCu@N<small>₆</small>C exhibit high catalytic activity with low limiting potential values of –0.13 and 0.00 V, respectively. The electron transfer and crystal orbital Hamiltonian population are further analyzed to prove the middle metal coordination favored the reduction of the strong adsorption of the Ru site to the *N<small>₂</small>H<small>₃</small> intermediate. These findings underscore the crucial role of electron transfer during the HzOR and highlight the potential of Ru-coordinated heteronuclear DACs, and will build a bridge for the sustainable hydrogen production and ecosystem governance technologies.","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":"82 1","pages":""},"PeriodicalIF":3.3,"publicationDate":"2025-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145133508","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":"Electron transfer and intersystem crossing in Bodipy dimers: a study of their photophysical properties using steady state and transient optical and electron paramagnetic resonance spectroscopic methods.","authors":"Yanran Wu, Marcel M Bakirov, Andrei A Sukhanov, Huaiman Cao, Jiayu Li, Sheng Liao, Jianzhang Zhao, Yuri E Kandrashkin, Violeta K Voronkova, Ming-De Li","doi":"10.1039/d5cp01265a","DOIUrl":"10.1039/d5cp01265a","url":null,"abstract":"<p><p>The photophysical properties of two new Bodipy dimers are investigated using a variety of techniques, including steady-state UV-vis absorption and fluorescence spectroscopy, femtosecond and nanosecond transient absorption spectroscopy, and pulse laser-excited time-resolved electron paramagnetic resonance (TREPR) spectroscopic methods. The dimers are formed by the Bodipy units rigidly linked by the orthogonal phenylene bridge. One of the dimers is composed of iodinated units, and the other is not. The dimerization of the non-iodinated Bodipy leads to a strong quenching of the fluorescence compared to the monomer, indicating the presence of a new electronic state relaxation pathway, which we assign to charge transfer processes. This conclusion is supported by the femtosecond transient absorption (fs-TA) spectroscopy and TREPR studies. However, the triplet yield of this dimer formed by charge recombination is not high (4.4%). The iodination of the Bodipy units leads to a significant difference in the photophysical properties of the studied chromophores as a result of the enhanced intersystem crossing (ISC, the singlet oxygen quantum yield: 69.8%) induced by the spin-orbit coupling of the iodine atom due to the heavy atom effect. As a result, the metastable T₁ triplet state is formed after photoexcitation (the rate constant for S₁ → T₁ is 0.2 ps^-1), and the processes of charge separation and recombination have a low quantum yield (3.2%). TREPR spectra reveal that IDPB exhibits a weak charge transfer (CT) signal in polar solvents. The absence of heavy atoms in DPB decreases the triplet state formation efficiency and enhances the formation of the CT state. This observation is consistent with fs-TA spectral data. Overall, these results suggest that the triplet state may form indirectly through the CT state. Low-temperature TREPR spectra observed for the triplet and CT states in a polar solvent exhibit similar decay rates. This indicates that these two states may have similar energies and could achieve dynamic equilibrium under certain conditions. The spin density of the metastable T₁ state of the studied dimers is localized on one Bodipy unit, as confirmed by the analysis of the zero-field splitting (ZFS) parameters derived from the TREPR spectra. This information is useful for an in-depth understanding of the triplet state and intersystem crossing in chromophore dimers or oligomers.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"20013-20022"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144990984","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":"Mechanisms of cesium incorporation and thermal stability in sodalite.","authors":"Mingfeng Shao, Zeao Wang, Guoqiang Qin, Zhi Wang, Shengjian Qin, Linyan Li, Yi Liu, Shengdong Zhang","doi":"10.1039/d5cp02335a","DOIUrl":"10.1039/d5cp02335a","url":null,"abstract":"<p><p>The immobilization of radioactive cesium (Cs) within sodalite frameworks is a critical challenge in nuclear waste management. This study employs density functional theory and <i>ab initio</i> molecular dynamics simulations to investigate the structural evolution, thermodynamic stability, and bonding mechanisms of Cs-incorporated sodalite (Na_8-<i>x</i>Cs_<i>x</i>Al₆Si₆O₂₄Cl₂, 0 ≤ <i>x</i> ≤ 8). Formation energy calculations reveal a concentration-dependent preference for Cs substitution, with a minimum of 0.33 eV per Cs atom at <i>x</i> = 4-5, signifying optimal stability at intermediate loadings. Symmetric Cs distributions across adjacent Na/Cs-Cl tetrahedrons suppress lattice strain, whereas clustering triggers pronounced distortion and elevates formation energy by up to 0.7 eV. Moreover, non-equivalent Cs substitution sites in symmetric configurations are energetically favored over equivalent ones. Cs-Cl bonds exhibit predominantly ionic character (Bader charge: Cs +0.9, Cl -0.7) with subtle covalent contributions, as evidenced by electron localization function (ELF ≈ 0.1) and projected density of states overlap between Cs 5p and Cl 3p orbitals. In contrast, Na-Cl bonds remain purely ionic. <i>Ab initio</i> molecular dynamics further establish <i>x</i> = 6 as the thermal stability threshold: Cs migration accelerates beyond this concentration (MSD > 0.3 Å), while Na atoms remain immobile across all compositions. These atomic-scale insights yield quantitative design criteria for durable sodalite-based waste forms through optimized Cs concentration and distribution symmetry.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"19987-19996"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144991056","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":"Exploring the functional properties of the diamond-like quaternary compound Li₂ZnGeS₄ for potential energy applications: a theoretical approach.","authors":"Lalengmawia Celestine, Michael T Nunsanga, Saurav Suman, Renthlei Zosiamliana, Lalruat Sanga, Hani Laltlanmawii, Lalhriat Zuala, Shivraj Gurung, A Laref, D P Rai","doi":"10.1039/d5cp02345a","DOIUrl":"10.1039/d5cp02345a","url":null,"abstract":"<p><p>It is anticipated that wide-bandgap semiconductors (WBGSs) would be useful materials for energy production and storage. A well-synthesized, yet scarcely explored, diamond-like quaternary semiconductor Li₂ZnGeS₄ has been considered for this work. Herein, we have employed two well-known functionals GGA and mGGA within a framework of density functional theory (DFT). We have explored the electronic, optical, mechanical, and piezo-electromechanical properties. Our results are in qualitative agreement with some of the previously reported data. The structural stabilities were confirmed using the formation energy, Born stability criteria and molecular-dynamic (MD) simulations. Based on our findings, we claim that Li₂ZnGeS₄ is a probable candidate for various energy harvest applications.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"20163-20176"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145013443","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":"Identification of temperature-insensitive residues in regulating SARS-CoV-2 variants-human ACE2 interaction-a study of molecular dynamics simulation.","authors":"Chuanbo Wang, Zijian Liu, Jinfei Mei, Mengke Jia, Sajjad Ahmad, Hongqi Ai","doi":"10.1039/d5cp01710f","DOIUrl":"10.1039/d5cp01710f","url":null,"abstract":"<p><p>The COVID-19 pandemic remains a global health crisis, with successive SARS-CoV-2 variants exhibiting enhanced transmissibility and immune evasion. Notably, the Omicron variant harbors extensive mutations in the spike protein's receptor-binding domain (RBD), altering viral fitness. While temperature is a critical environmental factor modulating viral stability and transmission, its molecular-level effects on variant-specific RBD-human angiotensin-converting enzyme 2 (hACE2) interactions remain underexplored. Here, we employed all-atom molecular dynamics (MD) simulations to investigate temperature-dependent conformational dynamics of four major variants (alpha, beta, delta, and omicron) complexed with hACE2 at three temperatures (190 K, 250 K, and 310 K). Our analyses revealed two temperature-insensitive residues (K417N and E484K/A) in beta and omicron variants that maintain stable conformational states between 250 K and 310 K, contrasting sharply with temperature-dependent fluctuations observed in alpha and delta variants. These residues function as an allosteric converter, modulating interfacial interactions through temperature-regulated electrostatic and hydrophobic forces. Furthermore, we identified key \"effector\" residues (Q493, Y501 in beta; F486, R498 in omicron) that mediate temperature-dependent binding affinity changes. Our findings provide mechanistic insights into variant-specific environmental adaptation and propose novel targets for broad-spectrum therapeutic design.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"20250-20265"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145022446","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":"Mechanistic insights into neosilyllithium-catalyzed hydroboration of nitriles, aldehydes, and esters: a DLPNO-CCSD(T) study.","authors":"Mridula Choudhary, Tarun K Panda, Saurabh Kumar Singh","doi":"10.1039/d5cp02589c","DOIUrl":"10.1039/d5cp02589c","url":null,"abstract":"<p><p>Over the past few years, alkali and alkaline earth metals have emerged as alternative catalysts to transition metal organometallics to catalyze the hydroboration of unsaturated compounds. A highly selective and cost-effective lithium-catalyzed method for the synthesis of an organoborane has been established based on the addition of a B-H bond to an unsaturated bond (polarized or unpolarized) using pinacolborane (HBPin). In the present work, the neosilyllithium-catalyzed hydroboration of nitriles, aldehydes, and esters has been investigated using high-level DLPNO-CCSD(T) calculations to unravel the mechanistic pathways and substrate-dependent reactivity. Using non-covalent interaction (NCI) analysis, intrinsic bond orbital (IBO) analysis, and activation strain analysis (ASA), we thoroughly analyzed the nature of key intermediates and transition states. The DLPNO-CCSD(T) study reveals that the initial interaction between neosilyllithium and pinacolborane forms a stable zwitterionic intermediate, which polarizes the B-H bond and enables efficient hydride transfer. Specifically, the hydroboration of nitriles involves two sequential hydride transfers, where the first reduction of nitrile to imine occurs <i>via</i> a six-membered transition state, with a huge free energy barrier of ∼15 kcal mol^-1, while the second step with imine-to-amine reduction proceeds with a tiny barrier of ∼3.1 kcal mol^-1. ASA analysis of the transition state suggests that the linear geometry of the nitrile group incurs a significant distortion penalty compared to the pre-bent imine geometry, making the second hydride transfer much facile in nature. The hydroboration aldehydes require a moderate free energy barrier for the hydride transfer (∼8.3 kcal mol^-1), and the desired products are thermodynamically stable. On the other hand, for esters, the computed Gibbs free energy profile displays a notably higher activation barrier (∼17.5 kcal mol^-1), compared to aldehydes, which agrees with experimental observations that the hydroboration of esters is more challenging. A significant steric hindrance surrounding the ester functional group has been demonstrated to markedly augment the strain energy during the hydride transfer step, engendering a higher activation energy barrier for esters compared to aldehydes. Our findings suggest an interplay of steric and electronic factors in dictating substrate reactivity and the dual role of HBPin as both a hydride donor and a functional group acceptor in the neosilyllithium-catalysed hydroboration reaction.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"20237-20249"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145022452","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":"Effects of salt concentration on the structure and vibrational sum frequency generation spectra of liquid/vapor interfaces of aqueous solutions of metal nitrates.","authors":"Abhilash Chandra, Amalendu Chandra","doi":"10.1039/d5cp02047f","DOIUrl":"10.1039/d5cp02047f","url":null,"abstract":"<p><p>We have investigated the effects of varying salt concentrations on the structure of the liquid/vapor interfaces of aqueous solutions of NaNO₃, Mg(NO₃)₂, and Ca(NO₃)₂ salts using molecular dynamics simulations and vibrational sum frequency generation (VSFG) spectral calculations. The current study reveals a weak interfacial propensity of the nitrate ions and formation of an ionic double-layer at the interfaces. The tetrahedral hydrogen bond network is disrupted more by ions in the bulk phase compared to the interface, with the extent of disruption increasing with concentration. The VSFG spectra show three peaks: a positive peak in the range of 3000-3550 cm^-1 arising from O-H groups hydrogen bonded to water, a negative peak in the range of 3550-3650 cm^-1 due to O-H groups hydrogen bonded to the oxygen atoms of the nitrate ions, and a positive peak at around 3750 cm^-1 corresponding to free O-H groups. The positive peak intensity (3000-3550 cm^-1) follows the order Mg(NO₃)₂ > Ca(NO₃)₂ > NaNO₃ and the intensity for the systems with divalent cations increases with salt concentration. The electric field generated by the ionic double layers in the Mg(NO₃)₂ systems is higher because of higher charge density of Mg²⁺ ions, and with concentration, the strength of the electric field increases further. The intensity of the negative peak (3550-3650 cm^-1) increases with the increasing concentration of the salts as the number of O-H groups hydrogen bonded to the oxygen atoms of the nitrate ions increases. The intensity of the positive peak at ∼3750 cm^-1 does not show any significant change with changes in the salt concentration.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"19748-19761"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144936670","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":"Ion-partitioning effect promotes the electroosmotic mixing of non-Newtonian fluids in soft-patterned microchannels.","authors":"Sumit Kumar Mehta, Prateechee Padma Behera, Abhishek Dutta, Bhashkar Jyoti Sharma, Anubhab Gaurav Borah, Pragyan Bora, Subhrajit Borah, Somchai Wongwises, Pranab Kumar Mondal","doi":"10.1039/d5cp02072g","DOIUrl":"10.1039/d5cp02072g","url":null,"abstract":"<p><p>We numerically investigate the mixing characteristics of non-Newtonian fluids under the ion-partitioning effect in a micromixer having a built-in patterned soft polyelectrolyte layer (PEL) on its inner wall surfaces. We show that the mixing phenomenon is greatly modulated by the migration of counter-ions triggered by the Born energy difference caused by the electrical permittivity differences between the PEL and bulk electrolyte. We demonstrate counter-ion concentration field, flow velocity variation, species concentration distribution, mixing efficiency and neutral species dispersion by varying the electrical permittivity ratio and rheological parameters. In contrast to the scenario of no ion-partitioning, results show that a decrease in counter-ions in the PEL permits a greater prediction of the induced potential field therein by the ion-partitioning effect. This phenomenon results in a higher electrical body force in the PEL at a lower permittivity ratio when the ion-partitioning effect is considered. Notably, for a lower permittivity ratio (= 0.2), the ion-partitioning effect results in an electrical body force that is significantly higher than that in the no ion-partition case. Consequently, when the ion-partitioning effect is present, we find that flow velocity and recirculation strength are an order of magnitude higher than those in the no ion-partitioning case. Furthermore, we revealed that because of the ion-partitioning effect, higher vortex strength at lower permittivity ratios leads to better species homogeneity and mixing efficiency. Thus, mixing efficiency surpasses 90% for lower permittivity ratio values. Neutral species dispersion is faster owing to the ion-partitioning effect, especially for higher Carreau numbers. Utilizing the ion-partitioning effect, the results of this study can be utilized to design and develop efficient micromixers intended for the mixing of non-Newtonian fluids for diagnostic applications.</p>","PeriodicalId":99,"journal":{"name":"Physical Chemistry Chemical Physics","volume":" ","pages":"19662-19676"},"PeriodicalIF":2.9,"publicationDate":"2025-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144936694","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}