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International Journal of Inorganic Chemistry最新文献

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Spectral, NLO, Fluorescence, and Biological Activity of Knoevenagel Condensate of β-Diketone Ligands and Their Metal(II) Complexes β-二酮配体及其金属(II)配合物Knoevenagel缩合物的光谱、NLO、荧光和生物活性
International Journal of Inorganic Chemistry Pub Date : 2011-01-01 DOI: 10.1155/2011/154326
S. Sumathi, C. Anitha, P. Tharmaraj, C. D. Sheela
{"title":"Spectral, NLO, Fluorescence, and Biological Activity of Knoevenagel Condensate of β-Diketone Ligands and Their Metal(II) Complexes","authors":"S. Sumathi, C. Anitha, P. Tharmaraj, C. D. Sheela","doi":"10.1155/2011/154326","DOIUrl":"https://doi.org/10.1155/2011/154326","url":null,"abstract":"Transition metal complexes of various acetylacetone-based ligands of the type ML (where Cu(II), Ni(II), Co(II); 3-(aryl)-pentane-2,4-dione) have been synthesized. The structural features have been derived from their elemental analysis, magnetic susceptibility, molar conductance, IR, UV-Vis, H1NMR, mass and ESR spectral studies. Conductivity measurements reveal that all the complexes are nonelectrolytic in nature. Spectroscopic and other analytical data of the complexes suggest square planar geometry for copper(II), cobalt(II), and nickel(II) complexes of 3-(3-phenylallylidene)pentane-2,4-dione and octahedral geometry for other metal(II) complexes. The redox behaviors of the copper(II) complexes have been studied by cyclic voltammetry. The free ligands and their metal complexes have been screened for their in vitro biological activities against bacteria and fungus. The metal(II) complexes are found to possess increased activities compared to those of the free ligands. All synthesized compounds may serve as potential photoactive materials as indicated from their characteristic fluorescence properties. The second harmonic generation (SHG) efficiency of the ligands was found to have considerable effect compared to that of urea and KDP.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77240599","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: 5
Synthesis, Characterization, and Biological Activity of Some Transition Metal Complexes Derived from Novel Hydrazone Azo Schiff Base Ligand 新型腙偶氮席夫碱配体过渡金属配合物的合成、表征及生物活性研究
International Journal of Inorganic Chemistry Pub Date : 2011-01-01 DOI: 10.1155/2011/493942
C. Anitha, S. Sumathi, P. Tharmaraj, C. D. Sheela
{"title":"Synthesis, Characterization, and Biological Activity of Some Transition Metal Complexes Derived from Novel Hydrazone Azo Schiff Base Ligand","authors":"C. Anitha, S. Sumathi, P. Tharmaraj, C. D. Sheela","doi":"10.1155/2011/493942","DOIUrl":"https://doi.org/10.1155/2011/493942","url":null,"abstract":"A series of metal(II) complexes ML where M = VO(II), Co(II), Ni(II), Cu(II), and Zn(II) have been synthesized from azo Schiff base ligand (N′E)-N′-(5-((4-chlorophenyl)diazenyl)-2-hydroxybenzylidene)-2-hydroxybenzohydrazide and characterized on the basis of elemental analyses, electronic, IR, and 1H NMR spectra, magnetic susceptibility and also by aid of scanning electron microscopy (SEM), X-ray powder diffraction, fluorescence spectral studies, and molar conductivity measurements. Conductivity measurements reveal that the complexes are nonelectrolytes. Spectroscopy and other analytical studies reveal distorted square planar geometry for copper, square-pyramidal geometry for oxovanadium, and tetrahedral geometry for other complexes. Redox behavior of the copper(II) complex has been studied with cyclic voltammetry, and the biological activities of the ligand and metal complexes have been studied against several microorganisms by the well diffusion method. All synthesized compounds can serve as potential photoactive materials as indicated from their characteristic fluorescence properties. The second harmonic generation (SHG) efficiency of the ligand was measured and found to be higher than that of urea and KDP. The SEM image of the copper(II) complex implies that the size of the particles is 50 nm.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74204034","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: 29
Surfactant-Assisted Sol-Gel Synthesis of TiO 2 with Uniform Particle Size Distribution 表面活性剂辅助溶胶-凝胶法制备粒径分布均匀的二氧化钛
International Journal of Inorganic Chemistry Pub Date : 2011-01-01 DOI: 10.1155/2011/108087
O. Galkina, V. Vinogradov, A. Agafonov, V. Vinogradov
{"title":"Surfactant-Assisted Sol-Gel Synthesis of TiO 2 with Uniform Particle Size Distribution","authors":"O. Galkina, V. Vinogradov, A. Agafonov, V. Vinogradov","doi":"10.1155/2011/108087","DOIUrl":"https://doi.org/10.1155/2011/108087","url":null,"abstract":"TiO2 materials were prepared from a titanium isopropoxide precursor by sol-gel processing in water media with or without various templates (polyethylenimine or Pluronic P-123). The photocatalytic efficiency of the samples was found to depend strongly on the use of and type of template added. Titania/Pluronic sols resulted in homogeneous anatase TiO2—rutile with uniform particle size distribution after calcination (). Optical properties of the samples were characterized by UV-Vis spectroscopy and crystalline structures by X-ray diffraction. A surfactant-assisted sol-gel process retarded crystallization of the anatase and rutile titania, which resulted in smaller grain sizes and presumably a larger active surface area. The morphology of the surfaces was obtained by AFM techniques. The highest photobleaching rate was found for samples deposited from the sol with the addition of the Pluronic P-123 surfactant, and it was almost twice as high as that for films deposited from sols with polyethylenimine.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75922923","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: 25
Studies on Formation and Decomposition of the Layered Cobaltite LixNayCoO2 层状钴酸盐LixNayCoO2的形成与分解研究
International Journal of Inorganic Chemistry Pub Date : 2011-01-01 DOI: 10.1155/2011/649183
A. Semenova, R. Samigullina, E. Shalaeva, N. I. Kourov, D. Kellerman
{"title":"Studies on Formation and Decomposition of the Layered Cobaltite LixNayCoO2","authors":"A. Semenova, R. Samigullina, E. Shalaeva, N. I. Kourov, D. Kellerman","doi":"10.1155/2011/649183","DOIUrl":"https://doi.org/10.1155/2011/649183","url":null,"abstract":"Lithium-sodium cobaltite LixNayCoO2 (x≈y≈0.5) with ordered layered structure is promising thermoelectric material. Here we report the peculiarities of this phase formation and decomposition processes studied by TG/DTA, XRD, SEM, and TEM methods. Significant weight loss resulting from oxygen liberation and endothermic effect at T≈1000°C are the main features of the LixNayCoO2 formation. Decomposition of the ordered phase is accompanied by exothermic effect at ≈940°C and the weight increase. Electron microscopic study shows that the lithium-sodium cobaltite decomposes into LiCoO2 and γ-Na0.7CoO2. Lattices of the initial phase and formed ones demonstrate mutual orientation.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73637152","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
Preparation and Characterization of Ag-Doped BaTiO3 Conductive Powders 掺银BaTiO3导电粉体的制备与表征
International Journal of Inorganic Chemistry Pub Date : 2011-01-01 DOI: 10.1155/2011/837091
S. Hao, D. Fu, Jialong Li, Wen Wang, B. Shen
{"title":"Preparation and Characterization of Ag-Doped BaTiO3 Conductive Powders","authors":"S. Hao, D. Fu, Jialong Li, Wen Wang, B. Shen","doi":"10.1155/2011/837091","DOIUrl":"https://doi.org/10.1155/2011/837091","url":null,"abstract":"BaTiO3 powders doped with Ag at different Ag/Ba molar ratios were prepared by sol-gel method. The resistivity reached the lowest point of 5.644 Ω·m when Ag concentration was 0.10 at% and the powders were calcined for two times at 800°C and 500°C. XRD and FTIR investigations showed that no new substance was formed after the doping and calcining process, but the particle size and the strength of Ti-O bond in modified BaTiO3 crystal cell all changed. The conductivity of Ag-doped BaTiO3 powders with different Ag concentrations and through different preparing methods was discussed by using defect theory.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82395342","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: 12
Insights into DNA platination within unusual structural settings 在不寻常的结构设置中洞察DNA铂化
International Journal of Inorganic Chemistry Pub Date : 2011-01-01 DOI: 10.1155/2011/319757
Stephanie Harvie, Owen Wilson, J. Parkinson
{"title":"Insights into DNA platination within unusual structural settings","authors":"Stephanie Harvie, Owen Wilson, J. Parkinson","doi":"10.1155/2011/319757","DOIUrl":"https://doi.org/10.1155/2011/319757","url":null,"abstract":"2D [1H,15N] HSQC NMR spectroscopy has been used to monitor reaction and product formation between [Pt(15NH3)2I2] and nucleic acids possessing irregular topologies and containing site-specific phosphorothioate substitution in the phosphodiester backbone. Comparison of the reaction profiles of dimer nucleic acids with and without phosphorothioate substitution is made with their short nucleic acid counterparts containing the key dimer components. Whereas d(GpA) is relatively unreactive towards [Pt(15NH3)2I2], NMR evidence suggests that the tandem sheared mismatch duplex d(GCG3pAGC)2 reacts to form the head-to-tail interstrand G3-N7-Pt-G3-N7 cross-link. The equivalent phosphorothioate R,S-d(GsA) reacts to form a monoiodo, monosulphur adduct, whereas the tandem sheared mismatch phosphorothioate duplex d(GCGsAG5C)2 (VIs) reacts to form the unusual intrastrand macrochelate [Pt(15NH3)2{d(VIs-G5-𝑁7)},𝑆]2","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2011-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90692529","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: 0
Synthesis of Silver (I) Complexes of Iminoalkyl Functionalised N-Heterocyclic Carbenes 亚氨基烷基功能化n -杂环羰基银配合物的合成
International Journal of Inorganic Chemistry Pub Date : 2010-06-10 DOI: 10.1155/2010/628639
N. Williams, Mahboub Merzouk, P. Hitchcock
{"title":"Synthesis of Silver (I) Complexes of Iminoalkyl Functionalised N-Heterocyclic Carbenes","authors":"N. Williams, Mahboub Merzouk, P. Hitchcock","doi":"10.1155/2010/628639","DOIUrl":"https://doi.org/10.1155/2010/628639","url":null,"abstract":"A range of silver iminoalkyl imidazol-2-ylidene complexes have been isolated in good yield (50%–85%) and characterised by 1H and 13C NMR spectroscopy. A single crystal X-ray diffraction structure determination of 1-{2-(benzylhydrylidene-amino)-ethyl}-3-benzyl imidazol-2-ylidene silver bromide indicated monodentate coordination of the ligand.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80192501","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
Facile Access to Aldol Products from Aromatic and Heteroaromatic Aldehydes Using Ruthenium Catalyst 用钌催化剂从芳香族和杂芳香族醛中快速制备醛醇产品
International Journal of Inorganic Chemistry Pub Date : 2010-05-04 DOI: 10.1155/2010/621376
K. Tabatabaeian, M. Mamaghani, N. Mahmoodi, E. Keshavarz
{"title":"Facile Access to Aldol Products from Aromatic and Heteroaromatic Aldehydes Using Ruthenium Catalyst","authors":"K. Tabatabaeian, M. Mamaghani, N. Mahmoodi, E. Keshavarz","doi":"10.1155/2010/621376","DOIUrl":"https://doi.org/10.1155/2010/621376","url":null,"abstract":"A new method for the synthesis of aldol products is described. The reaction of aromatic and heteroaromatic aldehydes with 1-(thiophen-2-yl)ethanone in the presence of ruthenium chloride hydrate combined with ligand provided the related aldol adducts, in a short time at room temperature in good yields (77–84%).","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77217577","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 and Spectroscopic Studies of Some New Molybdenum, Tungsten, and Ruthenium Carbonyl Derivatives of 2-Hydroxymethylpyridine 新的2-羟甲基吡啶钼、钨、钌羰基衍生物的合成与光谱研究
International Journal of Inorganic Chemistry Pub Date : 2010-02-23 DOI: 10.1155/2010/296215
M. A. Taher, S. E. Jarelnabbi, B. Bayoumy, S. M. El‐Medani, R. Ramadan
{"title":"Synthesis and Spectroscopic Studies of Some New Molybdenum, Tungsten, and Ruthenium Carbonyl Derivatives of 2-Hydroxymethylpyridine","authors":"M. A. Taher, S. E. Jarelnabbi, B. Bayoumy, S. M. El‐Medani, R. Ramadan","doi":"10.1155/2010/296215","DOIUrl":"https://doi.org/10.1155/2010/296215","url":null,"abstract":"Thermal reactions of 2-hydroxymethylpyridine (HMP) with [M(CO)6] in air resulted in formation of the oxo-complexes [M2O6(HMP)2], where M = Mo, 1, or W, 2. The tricarbonyl complex [Ru(CO)3(HMP)], 3, was obtained from the reaction of [Ru3(CO)12] with HMP. In presence of triphenyl phosphine (PPh3), the reaction of HMP with Ru3(CO)12 gave [Ru(CO)2(HMP)(PPh3)], 4. All the complexes were characterized by elemental analysis, mass spectrometry, IR, and NMR spectroscopy. The thermal properties of the complexes were also investigated by thermogravimetry technique.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85914884","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: 9
Syntheses and Crystal Structures of [Cu3{-(NSPh2)2N}2Cl2] and [Cu3{-(NSPh2)2N}2{(NSPh2)2N}2]Cl2 [Cu3{-(NSPh2)2N}2Cl2]和[Cu3{-(NSPh2)2N}2{(NSPh2)2N}2]Cl2的合成及晶体结构
International Journal of Inorganic Chemistry Pub Date : 2010-02-07 DOI: 10.1155/2010/326568
T. Fujii, Mihoko Kanno, M. Hirata
{"title":"Syntheses and Crystal Structures of [Cu3{-(NSPh2)2N}2Cl2] and [Cu3{-(NSPh2)2N}2{(NSPh2)2N}2]Cl2","authors":"T. Fujii, Mihoko Kanno, M. Hirata","doi":"10.1155/2010/326568","DOIUrl":"https://doi.org/10.1155/2010/326568","url":null,"abstract":"We have prepared the trinuclear complexes [Cu3{𝜇-(NSPh2)2N}2Cl2] (3) and [Cu3{𝜇-(NSPh2)2N}2{(NSPh2)2N}2]Cl2 (4), from the reaction of CuCl2 with {N(Ph2SN)(Ph2SNH)} (1) and determined their structures by X-ray crystallographic analysis. In both complexes, two monoanions 𝟏− chelate the Cu(II) center in square-planar geometry, whereas the terminal Cu(II) center is four-coordinate and a distorted tetrahedron.","PeriodicalId":14074,"journal":{"name":"International Journal of Inorganic Chemistry","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2010-02-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81626918","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: 0
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