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International Journal of Inorganic Chemistry最新文献

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Characterization of Complexes Synthesized Using Schiff Base Ligands and Their Screening for Toxicity Two Fungal and One Bacterial Species on Rice Pathogens 希夫碱配体合成的配合物及其对水稻病原菌的毒性筛选
International Journal of Inorganic Chemistry Pub Date : 2014-09-18 DOI: 10.1155/2014/736538
T. Mangamamba, M. C. Ganorkar, G. Swarnabala
{"title":"Characterization of Complexes Synthesized Using Schiff Base Ligands and Their Screening for Toxicity Two Fungal and One Bacterial Species on Rice Pathogens","authors":"T. Mangamamba, M. C. Ganorkar, G. Swarnabala","doi":"10.1155/2014/736538","DOIUrl":"https://doi.org/10.1155/2014/736538","url":null,"abstract":"Coordination complexes with metal ions Cu(II), Ni(II), Co(II), Fe(III), Mn(II), Cr(III), and VO(II) with six ligands formed by condensation products using azides and aldehydes or ketones are characterized. Both the ligands and the complexes synthesized are characterized by C, H, N, Cl and metal analyses, IR, UV-Vis, TGA, and magnetic susceptibility for tentative structure proposal. Several of them are screened for their toxicity (i.e., physiological activity) against fungal species Rhizoctonia solani and Acrocylindrium oryzae and a bacterium, Xanthomonas oryzae on rice pathogens. The study shows that the observed physiological activity is enhanced for the metal complexes as compared to the simple metal salts or ligands, except in the case of L3 or HAEP ligand, where the free –OH and –NH2 groups on the ligand seemed to have inhibited the activity. It is also observed that the order of activity has a dependence on the increased atomic weight of the metal ion in use. In some cases, especially the VO(II) complexes, they are found to be better than the standards in use, both for the fungicides and for the bactericide.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87265401","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}
引用次数: 21
Novel Low Spin Mixed Ligand Thiohydrazide Complexes of Iron(III): Synthesis, Spectral Characterization, Molecular Modeling, and Antibacterial Activity 新型低自旋混合配体硫腙铁(III)配合物:合成、光谱表征、分子建模和抗菌活性
International Journal of Inorganic Chemistry Pub Date : 2014-09-17 DOI: 10.1155/2014/580232
D. Sengupta, S. Gangopadhyay, Sanchita Goswami, Arnab Dutta, Vikas Kumar, S. De, P. Gangopadhyay
{"title":"Novel Low Spin Mixed Ligand Thiohydrazide Complexes of Iron(III): Synthesis, Spectral Characterization, Molecular Modeling, and Antibacterial Activity","authors":"D. Sengupta, S. Gangopadhyay, Sanchita Goswami, Arnab Dutta, Vikas Kumar, S. De, P. Gangopadhyay","doi":"10.1155/2014/580232","DOIUrl":"https://doi.org/10.1155/2014/580232","url":null,"abstract":"Mixed ligand complexes of Fe(III) with aromatic thiohydrazides of general composition [Fe(acac)(L)2] have been synthesized and characterized (acac-acetylacetonate, L = bidentate uninegative aromatic thiohydrazide ligand, for example, thiobenzhydrazide, 2-hydroxythiobenzhydrazide, furan-2-thiohydrazide, and thiophen-2-thiohydrazide). The magnetic susceptibility data and the EPR spectra of these complexes suggested the formation of rhombically distorted low spin iron center (d5) in octahedral environment, which was also supported by the UV-vis spectral data of the complexes. Biological studies of these complexes also indicated that the iron-thiohydrazido complexes have superior antibacterial properties compared to the corresponding ligands.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89831104","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}
引用次数: 1
Synthesis, Spectroscopic, and Electrochemical Studies on Some New Copper(II) Complexes Containing 2-[(Z)-Phenyl (Pyridine-2-yl) Methylidene] AminoBenzenethiol and Monodentate Ligands 含2-[(Z)-苯基(吡啶-2-基)亚甲基]氨基苯乙醇和单齿配体的新型铜(II)配合物的合成、光谱和电化学研究
International Journal of Inorganic Chemistry Pub Date : 2014-06-19 DOI: 10.1155/2014/618943
S. Rawat, M. Choudhary
{"title":"Synthesis, Spectroscopic, and Electrochemical Studies on Some New Copper(II) Complexes Containing 2-[(Z)-Phenyl (Pyridine-2-yl) Methylidene] AminoBenzenethiol and Monodentate Ligands","authors":"S. Rawat, M. Choudhary","doi":"10.1155/2014/618943","DOIUrl":"https://doi.org/10.1155/2014/618943","url":null,"abstract":"Five new mononuclear copper(II) complexes, namely, [Cu(L)(ImH)]·ClO41; [Cu(L)(Me-ImH)]·ClO42; [Cu(L)(Et-ImH)]·ClO43; [Cu(L)(2-benz-ImH)]·ClO44; [Cu(L)(benz-ImH)]·ClO45, where HL = 2-[(Z)-phenyl (pyridine-2-yl) methylidene] amino benzenethiol; ImH = Imidazole; Me-ImH = Methy-limidazole; Et-ImH = Ethyl-imidazole; 2-benz-ImH = 2-methyl-benzimidazole; benz-ImH = benz-imidazole, have been synthesized and characterized by various physicochemical and spectroscopic techniques. Magnetic moments, electronic spectra, and EPR spectra of the complexes suggested a square planar geometry around Cu(II) ion. The synthesized HL ligand behaves as monobasic tridentate Schiff base bound with the metal ion in a tridentate manner, with N2S donor sites of the pyridine-N, azomethine-N, and benzenethiol-S atoms. The redox behaviour of the copper complexes has been studied by cyclic voltammetry. Superoxide dismutase activity of these complexes has been revealed to catalyse the dismutation of superoxide () and IC50 values were evaluated and discussed.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-06-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77699537","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}
引用次数: 3
Complexing Behaviour and Antifungal Activity of N-[(1E)-1-(1H-Benzimidazol-2-yl)ethylidene]morpholine-4-carbothiohydrazide and Related Ligand with Metal Ions N-[(1E)-1-(1h -苯并咪唑-2-酰基)乙基]morpholine-4-碳硫腙及相关配体与金属离子的络合行为及抗真菌活性
International Journal of Inorganic Chemistry Pub Date : 2014-04-22 DOI: 10.1155/2014/902575
M. Bala, L. Mishra
{"title":"Complexing Behaviour and Antifungal Activity of N-[(1E)-1-(1H-Benzimidazol-2-yl)ethylidene]morpholine-4-carbothiohydrazide and Related Ligand with Metal Ions","authors":"M. Bala, L. Mishra","doi":"10.1155/2014/902575","DOIUrl":"https://doi.org/10.1155/2014/902575","url":null,"abstract":"The coordination complexes of bivalent metal ions with N-[(1E)-1-(1H-Benzimidazol-2-yl)ethylidene]morpholine-4-carbothiohydrazide (H2bmctz, H2L-1) and N-[(1E)-1-(1H-Benzimidazol-2-yl)(phenyl)methylidene] morpholine-4-carbothiohydrazide (H2bpmctz, H2L-2) were prepared and their neutral, monoanionic, and dianionic forms of ligands of compositions [M(H2L)X2] (M=, , , , , or , X=Cl− or Br−, and H2L=H2L-1 or H2L-2), [M(HL)2]nH2O where (M=, , , , or , H2L=H2L-1 or H2L-2, and n = 0 or 2), and [MLB]nB (M=, , , , or , B=H2O, Py, or -pic, n = 0 and n = 1 if B=H2O for Ni(II) and H2L=H2L-1 or H2L-2) have been characterised by magnetic susceptibility measurements, electrical conductance values, and spectral properties. The magnetic moment value of [M(HL2)] (M=, , or ) type complexes is consistent with high spin octahedral structure while those of [M(H2L)X2] (M=, , , , or , X=Cl− or Br−) possess five coordinated trigonal bipyramidal geometry. The adduct complexes [MLB]·nB (M=, or , B=H2O, Py, or -pic) are four coordinated planar and those of and complexes [MLB], (H2L=H2L-1 or H2L-2, B=H2O, Py or -pic) are tetrahedral. These ligands have been suggested to coordinate as tridentate (N N S) donor molecule in complexes of type [M(H2L)X2], [M(HL)2], and [MLB]. The antifungal activity of ligands and some of their metal complexes were studied and it was observed that metal complexes show higher activity than free ligand.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90720621","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}
引用次数: 2
Kinetics and Mechanism of the Oxidation of Naphthol Green B by Peroxydisulphate Ion in Aqueous Acidic Medium 酸性水溶液中过氧二硫酸根离子氧化萘酚绿B的动力学及机理
International Journal of Inorganic Chemistry Pub Date : 2014-03-25 DOI: 10.1155/2014/768575
B. Myek, S. Idris, J. Iyun
{"title":"Kinetics and Mechanism of the Oxidation of Naphthol Green B by Peroxydisulphate Ion in Aqueous Acidic Medium","authors":"B. Myek, S. Idris, J. Iyun","doi":"10.1155/2014/768575","DOIUrl":"https://doi.org/10.1155/2014/768575","url":null,"abstract":"The kinetics of the oxidation of naphthol green B (NGB3−) by peroxydisulphate ion has been carried out in aqueous acidic medium at of 700 nm, °C, and  mol dm−3 (NaCl). The reaction shows a first-order dependence on oxidant and reductant concentration, respectively. The stoichiometry of the NGB— reaction is 1 : 2. Change in hydrogen ions concentration of the reaction medium has no effect on the rate of the reaction. Added cations and anions decreased the rate of the reaction. The results of spectroscopic and kinetic investigation indicate that no intermediate complex is probably formed in the course of this reaction.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75336869","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}
引用次数: 3
Solution Studies on Co(II), Ni(II), Cu(II), and Zn(II) Complexes of Hexamethylenetetramine in Aqueous and Non-Aqueous Solvents 六亚甲基四胺的Co(II)、Ni(II)、Cu(II)和Zn(II)配合物在水溶液和非水溶液中的溶液研究
International Journal of Inorganic Chemistry Pub Date : 2014-03-03 DOI: 10.1155/2014/397132
A. Paboudam, C. Gérard, A. Mohamadou, M. Agwara, M. Conde, P. Ndifon
{"title":"Solution Studies on Co(II), Ni(II), Cu(II), and Zn(II) Complexes of Hexamethylenetetramine in Aqueous and Non-Aqueous Solvents","authors":"A. Paboudam, C. Gérard, A. Mohamadou, M. Agwara, M. Conde, P. Ndifon","doi":"10.1155/2014/397132","DOIUrl":"https://doi.org/10.1155/2014/397132","url":null,"abstract":"Potentiometric studies in aqueous medium and spectrophotometric study in non-aqueous medium were used to understand the behavior of hexamethylenetetramine (HMTA) complexes. The protometric studies of HMTA enabled us to confirm that only one basic site of this ligand is protonated in acidic medium and this ligand is decomposed in acidic medium. In aqueous medium, only hexa-aqua complexes in which HMTA is present in the second coordination sphere forming H-bonds with hydrogen atoms of coordinated and uncoordinated water molecules are obtained. In non-aqueous solvents, HMTA coordinates to metal ions displaying diversity in the structures of the resulting complexes in which HMTA can either be monodentate, bridged bidentate, tridentate, or tetradentate.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2014-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72635591","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}
引用次数: 6
Synthesis, Spectral, Thermal, Electrochemical, and Biocidal Activity of Tolyl/Benzyl Dithiocarbonates of Zinc(II) 甲苯基/苄基二硫代碳酸锌(II)的合成、光谱、热、电化学及杀生活性
International Journal of Inorganic Chemistry Pub Date : 2013-12-24 DOI: 10.1155/2013/135496
Nidhi Kalgotra, Bhawana Gupta, Savit Andotra, Sandeep Kumar, S. Pandey
{"title":"Synthesis, Spectral, Thermal, Electrochemical, and Biocidal Activity of Tolyl/Benzyl Dithiocarbonates of Zinc(II)","authors":"Nidhi Kalgotra, Bhawana Gupta, Savit Andotra, Sandeep Kumar, S. Pandey","doi":"10.1155/2013/135496","DOIUrl":"https://doi.org/10.1155/2013/135496","url":null,"abstract":"Tolyl/benzyl dithiocarbonates of zinc(II) [(CH3C6H4 and C6H5CH2OCS2)2Zn] have been synthesized in 1 : 2 molar ratio by the reaction of zinc chloride, ZnCl2, with sodium salts of tolyl/benzyl dithiocarbonates CS2Na, in aqueous medium. These complexes were further reacted with nitrogen and phosphorous donor ligands to obtain donor stabilized complex of the type [[(CH3C6H4 and C6H5CH2)OCS2]2Zn.nL], (L = Bipy, Phen for and PPh3, Py for ). These complexes were characterised by elemental analysis, mass, IR, and NMR (1H, 13C, and 31P) spectroscopies. The thermal analysis (TGA/DTA), cyclic voltammetry, and SEM have also been done. Distorted tetrahedral and octahedral geometries around the Zn(II) metal are proposed. These complexes have depicted potential antibacterial and antifungal activity.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86311306","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}
引用次数: 2
Crystal Structures and Magnetic Properties of Two New Cobalt(II) Complexes with Triazole-Substituted Nitronyl and Imino Nitroxide Radicals 两种新型三唑取代硝基和亚氨基氮氧基钴配合物的晶体结构和磁性能
International Journal of Inorganic Chemistry Pub Date : 2013-12-22 DOI: 10.1155/2013/272156
Jing Chen, You-Juan Zhang, Kun-Tao Huang, Qiang Huang, Jun-jie Wang
{"title":"Crystal Structures and Magnetic Properties of Two New Cobalt(II) Complexes with Triazole-Substituted Nitronyl and Imino Nitroxide Radicals","authors":"Jing Chen, You-Juan Zhang, Kun-Tao Huang, Qiang Huang, Jun-jie Wang","doi":"10.1155/2013/272156","DOIUrl":"https://doi.org/10.1155/2013/272156","url":null,"abstract":"Two new cobalt(II) complexes of formula [Co(hfac)2(NITphtrz) 1 and Co(hfac)2(IMphtrz) 2] have been prepared and characterized structurally [where NITphtrz = 4,4,5,5-tetramethyl-2-(2-phenyl-1,2,3-triazole-4-yl)imidazoline-1-oxyl-3-oxide and IMphtrz = 4,4,5,5-tetramethyl-2-(2-phenyl-1,2,3-triazole-4-yl)imidazoline-1-oxyl]. All of the complexes crystallize in an isomorphous triclinic space group with the Co(II) ion octahedrally coordinated via the bidentate chelating mode. The magnetic measurements show that two complexes exhibit antiferromagnetic interactions between the metal ions and the nitroxide radicals.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80362704","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}
引用次数: 1
Synthesis, Electrochemical, Spectroscopic, Antimicrobial, and Superoxide Dismutase Activity of Nickel (II) Complexes with Bidentate Schiff Bases 双齿希夫碱镍(II)配合物的合成、电化学、光谱、抗菌和超氧化物歧化酶活性
International Journal of Inorganic Chemistry Pub Date : 2013-12-19 DOI: 10.1155/2013/617837
R. Patel, S. Rawat, M. Choudhary
{"title":"Synthesis, Electrochemical, Spectroscopic, Antimicrobial, and Superoxide Dismutase Activity of Nickel (II) Complexes with Bidentate Schiff Bases","authors":"R. Patel, S. Rawat, M. Choudhary","doi":"10.1155/2013/617837","DOIUrl":"https://doi.org/10.1155/2013/617837","url":null,"abstract":"Five new nickel (II) complexes, namely, [Ni(L1)2](ClO4)2(1); [Ni(L2)2](ClO4)2(2); [Ni(L3)2](ClO4)2(3); [Ni(L4)2](ClO4)2(4); [Ni(L5)2](ClO4)2(5), where L1 = benzoylhydrazide; L2 = N-[(1)-1-(2-methylphenyl)ethylidene]benzohydrazide; L3=N-[(1)-1-(4-methylphenyl)ethylidene]benzohydrazide; L4=N-[(1)-1-(2-methoxyphenyl)ethylidene]benzohydrazide; L5 = N-[(1)-1-(4-methoxy-phenyl)ethylidene]benzohydrazide, have been synthesized and characterized by various physicochemical and spectroscopic techniques. The synthesized complexes are stable powders, insoluble in common organic solvents such as ethanol, benzene, carbon tetrachloride, chloroform, and diethyl ether, and are nonelectrolytes. The magnetic and spectroscopic data indicate a distorted square planar geometry for all complexes. The superoxide dismutase activity of these complexes has been measured and discussed. Antibacterial and antifungal properties of these complexes were also tested.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79502313","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}
引用次数: 3
Characteristic Studies of Hexamethylene Diamine Complexes 六亚甲二胺配合物的特性研究
International Journal of Inorganic Chemistry Pub Date : 2013-11-05 DOI: 10.1155/2013/458018
H. A. Bayoumi
{"title":"Characteristic Studies of Hexamethylene Diamine Complexes","authors":"H. A. Bayoumi","doi":"10.1155/2013/458018","DOIUrl":"https://doi.org/10.1155/2013/458018","url":null,"abstract":"Preparation and chemical analysis of Mn(II), Fe(III), Co(II), Ni(II), and Zn(II) complexes with Schiff base L [o-HOC6H4CH:N(CH2)6N:CHC6H4OH-o] are the main tasks of this work. The octahedral (M2L2·nH2O·X) complexes in 1 : 1 M : L ratio (X = or Ac− group, L = ligand) were prepared by involving the hydroxylic group in ortho position. All complexes were characterized on the basis of elemental analysis, UV, IR, 1H NMR, Gc/Ms, thermogravimetric analysis, magnetic measurements, molar conductance, and electrical conductivity. The obtained data indicate that all the investigated compounds behave as semiconductor materials.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72834065","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}
引用次数: 4
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