Interpenetration regulation is of great significance for both the crystal engineering and functional chemistry of MOFs. The combination of long and linear ditopic organic linkers with single or small metal node is effective to produce interpenetration metal-organic framework. Here, a 5-fold interpenetrated and porous dia-net metal-organic framework of [Cd(tpdc)2 ]·3DMF (Cd-MOF, H2 tpdc = 2′,5′-dimethylterphenyl-4,4″-dicarboxylate) was synthesizd under solvothermal reaction, which was structurally characterizaed by single X-ray crystal diffraction, coupled with thermal and luminescence properties study. The compound crystallises in monoclinic P2/c space group with cell parameters of a = 15.7789(4) Å, b = 24.8437(7) Å, c = 26.3720(4) Å, α = 90o , β = 96.5583(19)o , γ = 90o , and V = 23967 Å3 There are 1D channels and porosity of 57.5% for the Cd-MOF, which is a rare example of MOFs with coexistence of high-degree interpenetration and high porosity. The MOF can thermally stable up to 360 o C, with light blue lumiscent emission at 360 nm under a ultraviolet radiation.
互穿调节对于 MOFs 的晶体工程和功能化学都具有重要意义。长线性二配位有机连接体与单个或小金属节点的结合可以有效地产生互穿金属有机框架。本文通过溶热反应合成了[Cd(topdc)2 ]-3DMF（Cd-MOF，H2 tpdc = 2′,5′-二甲基三联苯-4,4″-二甲酸酯）的 5 层互穿多孔二元网状金属有机框架，并通过单 X 射线晶体衍射、热学和发光特性研究对其进行了结构表征。该化合物在单斜 P2/c 空间群中结晶，晶胞参数为 a = 15.7789(4) Å, b = 24.8437(7) Å, c = 26.3720(4) Å, α = 90o , β = 96.5583(19)o ， γ = 90o ， V = 23967 Å3 Cd-MOF 具有 1D 沟道，孔隙率高达 57.5%，是高穿透度和高孔隙率并存的 MOF 的罕见实例。该 MOF 的热稳定性可达 360 o C，在紫外线辐射下，在 360 纳米波长处会发出淡蓝色荧光。
{"title":"A 5-fold Interpenetrated and Porous Dia-net Metal-Organic Framework Constrcuted from Long and Linear Phenyl-carboxylate Linkers","authors":"Zheng Yin","doi":"10.54026/aroic/1016","DOIUrl":"https://doi.org/10.54026/aroic/1016","url":null,"abstract":"Interpenetration regulation is of great significance for both the crystal engineering and functional chemistry of MOFs. The combination of long and linear ditopic organic linkers with single or small metal node is effective to produce interpenetration metal-organic framework. Here, a 5-fold interpenetrated and porous dia-net metal-organic framework of [Cd(tpdc)2 ]·3DMF (Cd-MOF, H2 tpdc = 2′,5′-dimethylterphenyl-4,4″-dicarboxylate) was synthesizd under solvothermal reaction, which was structurally characterizaed by single X-ray crystal diffraction, coupled with thermal and luminescence properties study. The compound crystallises in monoclinic P2/c space group with cell parameters of a = 15.7789(4) Å, b = 24.8437(7) Å, c = 26.3720(4) Å, α = 90o , β = 96.5583(19)o , γ = 90o , and V = 23967 Å3 There are 1D channels and porosity of 57.5% for the Cd-MOF, which is a rare example of MOFs with coexistence of high-degree interpenetration and high porosity. The MOF can thermally stable up to 360 o C, with light blue lumiscent emission at 360 nm under a ultraviolet radiation.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"3 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140243543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A new high-porosity MOF of [Ni2.3Zn0.7(tzba)3 (H2 O)6 ]·12DMF (NiZn-MOF) processes 2D (3,6)-grid layers constructed from rare [M2 (tz)3 (H2 O)3 ] and [M(COO)3 ] nodes. The metal doping of Ni2+ and Zn2+ are crucial for the formation of the two kinds of metal nodes and subsequent synergistical assembly into the mesoporous MOF, in contrast to the formation of MIL-88-topology resembled compound of {(Me2 NH2 )[Ni3 (μ3 -OH)(tzba)3 (H2 O)3 ]·8DMF (Ni3-MOF) using single Ni2+ as metal source. The regular 2D layers stacked in parallel and ABAB fashion through interlayer hydrogen bonding, leading to a neutral framework with void fraction up to 72.1% and 1D mesoporous hexagonal channels sized at 24.0 Å in diameter. The large gas accessible porosity was revealed by the saturated N2 and CO2 uptake of 720 and 708 cm3 g-1, at 77 K and 195 K, respectively, giving a high Langmuir surface area of 2066 m2 g-1. The varying gas sorption amounts dependent on accommodated solvents and activation temperature, as well as the gate-opening behaviors in sorption isotherms, well confirm the dynamic structure response to guest species of the flexible framework.
{"title":"Metal Doping Induced Formation and Dynamic Gas Sorption of a Highly Porous Mesoporous MetalOrganic Framework","authors":"Zheng Yin","doi":"10.54026/aroic/1015","DOIUrl":"https://doi.org/10.54026/aroic/1015","url":null,"abstract":"A new high-porosity MOF of [Ni2.3Zn0.7(tzba)3 (H2 O)6 ]·12DMF (NiZn-MOF) processes 2D (3,6)-grid layers constructed from rare [M2 (tz)3 (H2 O)3 ] and [M(COO)3 ] nodes. The metal doping of Ni2+ and Zn2+ are crucial for the formation of the two kinds of metal nodes and subsequent synergistical assembly into the mesoporous MOF, in contrast to the formation of MIL-88-topology resembled compound of {(Me2 NH2 )[Ni3 (μ3 -OH)(tzba)3 (H2 O)3 ]·8DMF (Ni3-MOF) using single Ni2+ as metal source. The regular 2D layers stacked in parallel and ABAB fashion through interlayer hydrogen bonding, leading to a neutral framework with void fraction up to 72.1% and 1D mesoporous hexagonal channels sized at 24.0 Å in diameter. The large gas accessible porosity was revealed by the saturated N2 and CO2 uptake of 720 and 708 cm3 g-1, at 77 K and 195 K, respectively, giving a high Langmuir surface area of 2066 m2 g-1. The varying gas sorption amounts dependent on accommodated solvents and activation temperature, as well as the gate-opening behaviors in sorption isotherms, well confirm the dynamic structure response to guest species of the flexible framework.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"65 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122492342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The exploration of highly efficient electrocatalysts is critical to the oxygen evolution reaction (OER). Here, we synthesized iron and hafnium co-doped Ni3 N (Fe, Hf-Ni3 N) nanostructure and grew on nickel foam substrate to fabricate a threedimensional (3D) electrode. The Fe, Hf-Ni3 N catalyst exhibits an excellent OER performance with a small overpotential of only 198 mV at 10 mA cm-2 and a lower Tafel slope of 89 mV dec-1 in basic electrolyte. This may be due to the fact that the doping of Fe and Hf modulate the electronic interactions of Ni3 N, thus increasing the OER activity. In addition, the Fe, HfNi3 N shows a considerable electrochemical stability, which has not weakened after 105 h operation. This work provides a useful approach for improve the OER performance of catalysts in the future.
{"title":"Iron and Hafnium Co-Doped Ni3 N Nanostructures as An Active Catalyst for Alkaline Water Oxidation","authors":"Wanru Feng","doi":"10.54026/aroic/1014","DOIUrl":"https://doi.org/10.54026/aroic/1014","url":null,"abstract":"The exploration of highly efficient electrocatalysts is critical to the oxygen evolution reaction (OER). Here, we synthesized iron and hafnium co-doped Ni3 N (Fe, Hf-Ni3 N) nanostructure and grew on nickel foam substrate to fabricate a threedimensional (3D) electrode. The Fe, Hf-Ni3 N catalyst exhibits an excellent OER performance with a small overpotential of only 198 mV at 10 mA cm-2 and a lower Tafel slope of 89 mV dec-1 in basic electrolyte. This may be due to the fact that the doping of Fe and Hf modulate the electronic interactions of Ni3 N, thus increasing the OER activity. In addition, the Fe, HfNi3 N shows a considerable electrochemical stability, which has not weakened after 105 h operation. This work provides a useful approach for improve the OER performance of catalysts in the future.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"80 8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128913599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The outermost layer of skin, the stratum corneum, has a role as the primary barrier against water evaporation from the body and drug entry through skin into the body. Thus, overcoming the stratum corneum barrier is important to develop transdermal drug delivery systems. Transdermal administration of drugs represents an excellent alternative to conventional pharmaceutical dosage forms. However, insufficient penetration of the active pharmaceutical substance through the skin is a common problem. Thus, in the present review we discussed the characterizations and the skin permeation enhancing ability of liquid crystal (LC) topical formulations.
{"title":"Characterizations of Liquid Crystals as A Transdermal Drug Delivery System","authors":"Wesam R Kadhum","doi":"10.54026/aroic/1013","DOIUrl":"https://doi.org/10.54026/aroic/1013","url":null,"abstract":"The outermost layer of skin, the stratum corneum, has a role as the primary barrier against water evaporation from the body and drug entry through skin into the body. Thus, overcoming the stratum corneum barrier is important to develop transdermal drug delivery systems. Transdermal administration of drugs represents an excellent alternative to conventional pharmaceutical dosage forms. However, insufficient penetration of the active pharmaceutical substance through the skin is a common problem. Thus, in the present review we discussed the characterizations and the skin permeation enhancing ability of liquid crystal (LC) topical formulations.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128578599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
For over a century, physicians considered the pH value of blood as one of the paraments, changes that could alarm serious metabolism deviations. The medical community had developed two parallel approaches, traditional and Stewart, to evaluate acid-base phenomena. Nevertheless, such important parameter is still missing in a Standard Blood Biochemical Profile (SBBP), which is periodically required by Primary Care Physicians (PCP) to ensure the health status of their patients. The current review is devoted to the advantages, that the medical community could obtain after accepting blood pH values as general for analysis, the consideration of technical possibilities of test strips development for digital measurements, and some related issues. Particular interest is associated with the possible connection between the blood pH data and the validity of the theory of Centralized Aerobic-Anaerobic Energy Balance Compensation (CAAEBC).
{"title":"pH Value of Blood: Should It be Considered as A Part of Standard Blood Biochemical Profile?","authors":"Alexandre A Vetcher","doi":"10.54026/aroic/1012","DOIUrl":"https://doi.org/10.54026/aroic/1012","url":null,"abstract":"For over a century, physicians considered the pH value of blood as one of the paraments, changes that could alarm serious metabolism deviations. The medical community had developed two parallel approaches, traditional and Stewart, to evaluate acid-base phenomena. Nevertheless, such important parameter is still missing in a Standard Blood Biochemical Profile (SBBP), which is periodically required by Primary Care Physicians (PCP) to ensure the health status of their patients. The current review is devoted to the advantages, that the medical community could obtain after accepting blood pH values as general for analysis, the consideration of technical possibilities of test strips development for digital measurements, and some related issues. Particular interest is associated with the possible connection between the blood pH data and the validity of the theory of Centralized Aerobic-Anaerobic Energy Balance Compensation (CAAEBC).","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126903038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
From ancient times, the chemistry of Schiff base-containing molecules has been a fascinating subject of study. They've been found to be a flexible pharmacophore for the creation and development of a wide range of bioactive lead compounds. Schiff bases are compounds containing the imine functional group. Different Schiff base containing byproducts have recently been synthesized and studied for activities such as antioxidant, antibacterial, antituberculosis, anti-inflammatory, antidepressant and anxiolytic activity, antihypertensive, anticonvulsants, anticancer, and antifungal activity. Different green chemistry techniques like-solid state, sonochemical, microwave assisted synthesis for synthesis of Schiff bases are discussed in this review.
{"title":"Green Techniques to Synthesize Schiff Bases","authors":"Atul R Bendale","doi":"10.54026/aroic/1011","DOIUrl":"https://doi.org/10.54026/aroic/1011","url":null,"abstract":"From ancient times, the chemistry of Schiff base-containing molecules has been a fascinating subject of study. They've been found to be a flexible pharmacophore for the creation and development of a wide range of bioactive lead compounds. Schiff bases are compounds containing the imine functional group. Different Schiff base containing byproducts have recently been synthesized and studied for activities such as antioxidant, antibacterial, antituberculosis, anti-inflammatory, antidepressant and anxiolytic activity, antihypertensive, anticonvulsants, anticancer, and antifungal activity. Different green chemistry techniques like-solid state, sonochemical, microwave assisted synthesis for synthesis of Schiff bases are discussed in this review.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131585734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ingredients Present In Personal Care Products That Need Scrutiny","authors":"David M Lewis","doi":"10.54026/aroic/1008","DOIUrl":"https://doi.org/10.54026/aroic/1008","url":null,"abstract":"","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116325858","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The aim of the present work was to review data on the antiviral activities of some fruit plant species and their macronutrient composition. This was done with the aim of promoting these plants for the management of viral diseases, particularly covid-19. Several fruit plant species are mentioned in the literature for their antiviral properties. These include: Cocos nucifera, Garcinia mangostana, Malus domestica, Mangifera indica, Musa acuminate, Musa balbisiana, Musa paradisiaca, Nephelium lappaceum, Passiflora edulis, Persea americana, Syzygium aromaticum, Syzygium guineense, Syzygium malaccense, Vitis vinifera. Some compounds of the above-mentioned fruit plants can interact with the therapeutic targets of various viruses including SARS-Cov-2 proteases. Others, on the other hand, are known to have immunostimulatory or both antiviral and immunostimulatory activities.
{"title":"Phytochemistry and Antiviral Activities of Some Fruit Plant Species As Potential Resources For AntiViral Agents","authors":"Ngbolua Kn","doi":"10.54026/aroic/1009","DOIUrl":"https://doi.org/10.54026/aroic/1009","url":null,"abstract":"The aim of the present work was to review data on the antiviral activities of some fruit plant species and their macronutrient composition. This was done with the aim of promoting these plants for the management of viral diseases, particularly covid-19. Several fruit plant species are mentioned in the literature for their antiviral properties. These include: Cocos nucifera, Garcinia mangostana, Malus domestica, Mangifera indica, Musa acuminate, Musa balbisiana, Musa paradisiaca, Nephelium lappaceum, Passiflora edulis, Persea americana, Syzygium aromaticum, Syzygium guineense, Syzygium malaccense, Vitis vinifera. Some compounds of the above-mentioned fruit plants can interact with the therapeutic targets of various viruses including SARS-Cov-2 proteases. Others, on the other hand, are known to have immunostimulatory or both antiviral and immunostimulatory activities.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114484716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The agricultural sector is subjected to different challenges particularly abiotic stress due to severe climate conditions. Water shortage is considered the main restricting factor for agricultural production. Polymeric substances could play a key role in improving various plant productivity and providing numerous advantages under light texture soils and dryness conditions. It is maintaining the continuous supply of water and nutrients for the plants, enhancing soil
{"title":"Polymeric Substances in Agriculture","authors":"Waleed Fouad Abobatta","doi":"10.54026/aroic/1007","DOIUrl":"https://doi.org/10.54026/aroic/1007","url":null,"abstract":"The agricultural sector is subjected to different challenges particularly abiotic stress due to severe climate conditions. Water shortage is considered the main restricting factor for agricultural production. Polymeric substances could play a key role in improving various plant productivity and providing numerous advantages under light texture soils and dryness conditions. It is maintaining the continuous supply of water and nutrients for the plants, enhancing soil","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129122038","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The structure assignment and conformational analysis of cinnamic derivative N-benzyl-N-(2-(cyclohexylamino)-2-oxoethyl) cinnamamide (NGI25) was carried out through Nuclear Magnetic Resonance (NMR) spectroscopy, Molecular Dynamics (MD) and Quantum Mechanics (QM), i.e., semiempirical and Density Functional Theory (DFT) calculations. Specifically, homonuclear (2D-COSY, 2D-NOESY) and heteronuclear (2D-HSQC, 2D-HMBC) spectra were obtained. Through them, the resonant values of the hydrogens and their constituent carbons were identified. After structure identification, NGI25 was subjected to computational calculations to reveal its most favorable conformations. QM, MD were in agreement with the spatial correlations that were observed in 2D-NOESY spectra.
通过核磁共振(NMR)、分子动力学(MD)和量子力学(QM)，即半经验和密度泛函理论(DFT)计算，对肉桂衍生物n -苄基- n -(2-(环己基氨基)-2-氧乙基)肉桂酰胺(NGI25)进行了结构赋值和构象分析。具体来说，获得了同核(2D-COSY, 2D-NOESY)和异核(2D-HSQC, 2D-HMBC)光谱。通过它们，确定了氢及其组成碳的共振值。在结构鉴定后，对NGI25进行了计算计算，以揭示其最有利的构象。QM、MD与2D-NOESY光谱的空间相关性一致。
{"title":"Spectroscopic and Computational Study of the Ugi Cinnamic Adduct NGI25","authors":"M. T","doi":"10.54026/aroic/1006","DOIUrl":"https://doi.org/10.54026/aroic/1006","url":null,"abstract":"The structure assignment and conformational analysis of cinnamic derivative N-benzyl-N-(2-(cyclohexylamino)-2-oxoethyl) cinnamamide (NGI25) was carried out through Nuclear Magnetic Resonance (NMR) spectroscopy, Molecular Dynamics (MD) and Quantum Mechanics (QM), i.e., semiempirical and Density Functional Theory (DFT) calculations. Specifically, homonuclear (2D-COSY, 2D-NOESY) and heteronuclear (2D-HSQC, 2D-HMBC) spectra were obtained. Through them, the resonant values of the hydrogens and their constituent carbons were identified. After structure identification, NGI25 was subjected to computational calculations to reveal its most favorable conformations. QM, MD were in agreement with the spatial correlations that were observed in 2D-NOESY spectra.","PeriodicalId":193352,"journal":{"name":"Advance Research in Organic and Inorganic Chemistry (AROIC)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126458818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：