摘要：
Under neutral reaction conditions, aromatic ketones were transformed into the corresponding a.-iodo ketones in high yields by the combination of copper(II) oxide and iodine. The reaction mechanism showed that copper(II) oxide played multiple roles through random self-sorting.
作者机构：
[Chen, Yunfeng] Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.;Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA.
通讯机构：
[Chen, Yunfeng] C;Cent China Normal Univ, Key Lab Pesticide & Chem Biol, Minist Educ, Coll Chem, Wuhan 430079, Peoples R China.
摘要：
Chiral molecular clips constitute a robust system for crystal engineering studies and undergo several levels of orthogonal organization including heterochiral dimerization, H-bond or metal-ligand mediated tape formation, and longitudinal packing of the tapes.
作者机构：
[Wu, Ming-Hu] Xianning Coll, Dept Chem & Life Sci, Xianning 437100, Peoples R China.;Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.
通讯机构：
[Wu, Ming-Hu] X;Xianning Coll, Dept Chem & Life Sci, Xianning 437100, Peoples R China.
摘要：
In the title molecule, C23H21NO2, the dihedral angle between the naphthalene ring systems is 70.71 ( 6) degrees. In the crystal structure, molecules are linked by intermolecular O - H center dot center dot center dot O hydrogen bonds to form one- dimensional chains along the c axis direction. In addition, weak C - H center dot center dot center dot pi (arene) interactions help to stabilize the structure.
作者机构：
[Wu, Anxin; Yin, Guodong; Wang, Zhiguo; Chen, Aihua; Hu, Shengli] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
通讯机构：
[Wang, Zhiguo] C;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
active methylene groups;beta-keto esters;NBS;oxidative coupling;MOLECULAR-STRUCTURE;ATOM TRANSFER;CRYSTAL;TETRAACETYLETHANE;DICARBONYLS;CONSTANTS
摘要：
A new application of NBS, which results in the oxidative coupling of beta-keto esters to selectively form C - C single and C = C double bonds, can be controlled by the amount of NBS and t-BuOK employed. This methodology adds a new entry to C - C single and C = C double-bond formation between active methylene groups under mild conditions with high selectivity.
关键词：
A1. Crystal morphology;A2. Growth from solutions;A2. Hydrothermal crystal growth;B1. Inorganic compounds;B2. Semiconducting lead compounds
摘要：
In this paper, lead iodide and lead oxide iodide crystalline films/crystals with various micro/nano-morphologies were synthesized by taking advantage of simple hydrothermal/solvothermal reactions between lead foil and element iodine under different conditions. The resulting products were characterized by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and X-ray diffraction (XRD). It was found that the morphologies of the resulting thin films/crystals could be well controlled by the adjustment of several parameters including iodine concentration, reaction time, temperature and reaction solvents. Possible growth mechanisms of the lead iodide crystalline compounds were also discussed. The present research work may provide new insights into the morphology-controlled synthesis of metal iodide as well as other inorganic materials.
摘要：
[Mn(C23H34ClN5)] (manganese(II) {24-chloro-2,21-dimethyl-(4R,9R,14R,19R)-3,10,13,20,26-pentaazatetracyclo[20.3.1.04,9.014,19]hexacosa-1(26),2(3),20(21),22(23),24-pentaene}, ([Mn(PAHP)]) has been synthesized and characterized by FT-IR spectroscopy, UV-vis, and MS spectra. Single crystals of [Mn(CH3CH2OH)Cl(C23H34ClN5)]Cl·H2O and [Mn(H2O)2(C23H34ClN5)]Cl2·CH2Cl2 were obtained by slow evaporation from ethanol-dichloromethane and 1,2-dichloromethane-DMF solution, respectively. X-ray crystallographic study of the complex reveals that the chloride ligand on manganese(II) can be substituted by oxygen-containing ligands, such as methanol.
摘要：
A simple method for immobilization of acetylcholinesterase (AChE) on multiwall carbon nanotubes (MWNTs)-chitosan (MC) composite was proposed and thus a sensitive, fast and stable amperometric, sensor for quantitative determination of organophosphorous insecticide was developed. Atomic force microscopy showed that this matrix possessed homogeneously netlike structure, which prevented enzyme from leaving out of the electrode. MWNTs promoted electron transfer reactions at a lower potential and catalyzed the electro-oxidation of thiocholine, thus increasing detection sensitivity. Based on the inhibition of organophosphorous insecticide to the enzymatic activity of AChE, using triazophos as a model compound, the conditions for detection of the insecticide were explored. Under optimal conditions, the inhibition of triazophos was proportional to its concentration in two ranges, from 0.03 to 7.8 mu M and 7.8 to 32 mu M with a detection limit of 0.01 mu M. A 95% reactivation of the inhibited AChE could be regenerated for using pralidoxime iodide within 8 min. The constructed biosensor processing prominent characteristics and performance such as good precision and reproducibility, acceptable stability and accuracy, fast response and low detection limit has potential application in the characterization of enzyme inhibitors and detection of toxic compounds against to enzyme. (c) 2007 Elsevier B.V. All rights reserved.
作者机构：
[Aidong ZHANG; Dan DU; Xi HUANG] Key Laboratory of Pesticide & Chemical Biology of Ministry of Education,Central China Normal University,Wuhan 430079,P.R.China
会议名称：
The Eleventh International & The First Sino-Japan Bilateral Symposium on Electroanalytical Chemistry (11th ISEC & 1st SJBSEC)第十一届国际电分析化学学术会议暨第一届中日双边电分析化学学术会议
会议时间：
2007-8-16
会议地点：
长春
会议主办单位：
中国化学会
会议论文集名称：
The Eleventh International & The First Sino-Japan Bilateral Symposium on Electroanalytical Chemistry (11th ISEC & 1st SJBSEC)第十一届国际电分析化学学术会议暨第一届中日双边电分析化学学术会议论文集
