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Electronic States in Trans-CoCl2(H2O)4Complex

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Materials Sciences and Applications 2011年第8期2卷 1121-1126页

作者： Hajer Souissi Souha kammoun 不详

The polarized absorption spectra of cobalt(II) in trans-CoCl2(H2O)4.2H2O provides important information about the electronic structure. Semi-empirical calculation of the crystal-field levels of the cobalt(II) with D4h point group symmetry in CoCl2(H2O)4.2H2O are carried out, leading to a good agreement between the theoretical and experimental energy levels.

关键词： Crystal And Ligand Fields Transition-Metal compounds CoCl2(H2O)4 Chromophore

Photocatalytic Degradation of 4-chlorophenol by CuMoO4-doped TiO2Nanoparticles Synthesized by Chemical Route

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Open Journal of Physical Chemistry 2011年第2期1卷 28-36页

作者： Tanmay K Ghorai Department of Chemistry West Bengal State University Barasat North 24 Pgs Kolkata-700126 India

The photocatalytic degradation of 4-chlorophenol (4-CP) in aqueous solution was studied using Cu-MoO4- doped TiO2 nanoparticles under Visible light radiation. The photocatalysts were synthesized by chemical route from TiO2 with different concentration of CuMoO4 (CuxMoxTi1-xO6;where, x values ranged from 0.05 to 0.5). The prepared nanoparticles are characterized by XRD, BET surface area, TEM, UV-vis diffuse reflectance spectra, Raman spectroscopy, XPS and EDAX spectroscopy were used to investigate the nanoparticles structure, size distribution, and qualitative elemental analysis of the composition. The CuxMoxTi1-xO6 (x = 0.05) showed high activity for degradation of 4-CP under visible light. The surface area of the catalyst was found to be 101 m2/g. The photodegradation process was optimized by using CuxMoxTi1-xO6 (x = 0.05) catalyst at a concentration level of 1 g/l. A maximum photocatalytic efficiency of 96.9% was reached at pH = 9 after irradiation for 3 hours. Parameters affecting the photocatalytic process such as catalyst loading, concentration of the catalyst and the dopant concentration, solution pH, and concentration of 4-CP have been investigated.

关键词： Inorganic compounds Chemical Synthesis Nanostructures Optical Properties

SYNTHESES OF N- METHYL-^(14)C BENZYL AMINE AND N- METHYL-^(14)C BENZYL NITROSAMINE

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Nuclear Science and Techniques 1990年第3期1卷 174-178页

作者：郭子丽朱京荣魏紫萍周瑞菊张雨龙 Shanghai Institute of Nuclear Research Academia Sinica Shanghai 201800

The syntheses of N-Methyl-14C benzyl amine and N-Methyl-14C benzyl nitrosamine are reported. Specific activities were approximately 920 MBq/mmol. Chemical and radiochemical purity checked by HPLC were more than 95%.

关键词： N- Methyl- 14C benzyl amine N- Methyl- 14 benzyl nitrosamine Trifluoroacetamide 14C - Labelled compounds

Effect of Mn Doping on Solvothermal Synthesis of CdS Nanowires

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Materials Sciences and Applications 2010年第4期1卷 210-216页

作者： Zinki Jindal N. K. Verma 不详

High aspect ratio (up to 100) CdS nanowires having average diameter of 15 nm and length varying from 0.5-1.5 μm have been synthesized using solvothermal technique in ethylenediamine as a solvent at 120℃ and the effect of Mn doping on morphology and optical properties has been studied. X-ray diffraction analysis shows the typical in-ter-planar spacing and the diffraction peaks corresponding to the hexagonal wurzite phase of CdS. Morphological study has been done through scanning electron microscopy (SEM) and transmission electron microscopy (TEM) and the optical studies have been conducted through absorption spectra and room temperature photoluminescence (PL).

关键词： Nanomaterials Semiconducting Cadmium compounds Growth from Solutions Nanostructures Nu-cleation

Kinetic studies on oxygen binding to dicobalt(Ⅱ) diporphyrin

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Chinese Science Bulletin 1996年第6期41卷 475-479页

作者：周晓海张绍辉祝德洪黄素秋屈松生 Department of Chemistry Wuhan University Wuhan 430072 China

It has been an important project in the field of biochemistry to search for a seriesof synthetic compounds which have good abilities of carrying oxygen at room temperatureand simulating the hemoglobin’s function of cooperative binding to oxygen. Uemori et al.and Tabushi et al. have reported that some dicobat(Ⅱ) diporphyrins have thecooperative effect of binding oxygn in organic solution below 0℃, the Hill coefficients areabout 1.0--1.5. We have reported the thermodynamics of a dicobalt(Ⅱ)

关键词： dicobalt(Ⅱ) diporphyrins model compounds of hemoglobin kinetics of reversible oxygen binding.

SECOND HARMONIC EFFECT AND CRYSTAL STRUCTURE OF A NEW NONLINEAR OPTICAL MATERIAL [Cd(POM)_2Br_2]

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Chinese Science Bulletin 1992年第11期37卷 922-925页

作者：李宋贤杨衍超林帆陈建中施大双胡盛志 Research Center for Solid Material Fuzhou University Fuzhou 350002 PRC Department of Chemistry Xiamen University Xiamen 361005 PRC

Ⅰ. INTRODUCTIONA type of organometallic complexes exhibiting potential nonlinear optical properties was advanced by Jiang Minhua et al. in 1984. It has been reported successively by C. C. Frazier, David F. Eaton and ... 详细信息

关键词： organometallic compounds second harmonic effect crystal structure

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Ebselen及其类似物的抗炎活性研究

微量元素与健康研究 1993年第4期10卷 1-2页

作者：周志彬涂欢夏小平徐辉碧华中理工大学化学系武汉430074

Ebselen（2—苯基—苯并异硒唑酮—3）为一含硒杂环化合物（图1（a））。在体外,它表现出类似谷胱甘肽过氧化物酶的活性;Ebselen 对活性氧自由基（OH,的 O2,ROO）有明显的清除作用。在动物实验中,它表现出良好的抗炎活性,特别是对风湿... 详细信息

Ebselen（2—苯基—苯并异硒唑酮—3）为一含硒杂环化合物（图1（a））。在体外,它表现出类似谷胱甘肽过氧化物酶的活性;Ebselen 对活性氧自由基（OH,的 O2,ROO）有明显的清除作用。在动物实验中,它表现出良好的抗炎活性,特别是对风湿性关节炎、肝炎、脑水肿有显著作用,

关键词： Ebselen Anti-inflammatory activity Selenium-containing heterocycle compounds