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The Characteristic of Electrochemical Oxidation of Aniline on SnO_2.Ti Electrode

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wuhan university Journal of Natural {2. 2001年第4期6卷 836-840页

作者： Wang Yu ling, Cai Nai cai , Huo Yao dong, Chen Hao college of chemistry and {2. Science, wuhan university, wuhan 430072. China college of chemistry and {2. Science Wuhan University Wuhan China

The characteristic of electrochemical oxidation of aniline on SnO 2.Ti electrode is studied. The results indicate that SnO 2.Ti electrode doped F plays a wonderful role in the oxidation of aniline comparing with Pt electrode. The kinetics factors that influence the oxidation rate of aniline on the SnO 2.Ti electrode are determined by the dissolving of the film on the electrode. The dissolving of the film consisted of intermediate products on the electrode is the slow step. The effects of aniline concentration, pH in aniline solution and the current density( i )on the rate of aniline oxidation, the complexity of intermediate products and the basic category of the intermediate products consisted of the film are introduced.

关键词： electrochemical oxidation SnO 2.Ti aniline

Synthesis and Characterization of Polyamide-Containing 2. 6-(Substituded) pyridine Derivatives

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wuhan university Journal of Natural {2. 2006年第3期11卷 682-686页

作者： XU Kuoxi HU Peizhi CAI Lihua Colliege of chemistry and molecular {2. Wuhan University Wuhan 430072 Hubei China

A new series of acyelic aromatic polyamide pyridine derivatives a-h and a new macrocyclic polyamide containing pyridine ring i were synthesized by the reaction of N^2. N^6-his（2.aminoethyl） pyridine-2. 6-dicarboxamide or N^2., N^6-bis （3-aminopropyl） pyridine-2.6-dicarboxamide with various acyl chloride. The compounds were characterized by MS, ^1H NMR, IR and elemental analysis. The single-crystal structure of g confirmed that the crystal is of triclinic, space group P-1 with Mr = 487.55, α=9.3031（19）, b=12.167（2. , c=12..50（3） nm, α=108.91（3）°, β= 97. 57（3）°, γ=102.07（3）°, Ⅴ= 1 2.3.5 nm, Z=2. Dc=1. 2.2.kg/m^3, μ=0. 086 mm^-1, F（000）=516, X-ray analysis reveals that there exist hydrogen bonding and network structure in the crystal.

关键词： polyamide pyridine derivative synthesis crystal structure

Correlation between the Standard Formation Enth alpy and the Path Index of Pyridine Derivatives

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wuhan university Journal of Natural {2. 2000年第2期5卷 229-232页

作者： LI Liang chao 1 ,LIAO Gui ying 1,2.,JIANG Sheng bin 2.,WANG Ying xi 2.,SUN Ju tang 3 1. Departmnt of chemistry, Jingzhou Normal college, Jingzhou, China, 434100 2. {2., Research Institute of chemistry, wuhan, China, 430074 Departmnt of chemistry Jingzhou Normal College Jingzhou China 434100 Departmnt of chemistry Jingzhou Normal College Jingzhou China 434100 hubei Research Institute of Chemistry Wuhan China 430074 hubei Research Institute of Chemistry Wuhan China 430074 college of chemistry Wuhan University Wuhan China 430072

A formulated as △fH m ? (PPDs,g)=a+ΣbiPi + cifi is put forward for estimating standard formation enthalpies of pyridine-derivatives (PDDs), in which,P i is path index andc i f i is an amended term of interaction between substituent and N atom on pyridine ring. The Calculations based on the model were carried out for some pyridine-derivatives. The values of standard formation enthalpy calculated are consistent with those in literature.

关键词： Key words pyridine derivatives standard formation enthalpy path index

Spectrofluorimetric Determination of Magnesium (Ⅱ) with 7-(8-Hydroxy-3, 6-Disulfonaphthylazo)-8-Hydroxyquinoline-5-Sulfonic Acid

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wuhan university Journal of Natural {2. 2001年第4期6卷 831-835页

作者： Zhang Xian, Wang Hong, Zhang Hua shan college of Chemisitry and molecular Science,{2., wuhan 430072. China college of chemistry and {2. Science Wuhan University Wuhan China

A new fluorescent reagent, 7 (8 hydroxy 3, 6 disulfonaphthylazo) 8 hydroxyquinoline 5 sulfonic acid (HDNHQ) for the determination of magnesium has been developed. It reacted with magnesium to form a 1∶1 fluorescent complex with λ ex / λ em =356/495 nm immediately at room temperature in ammonia ammonium chloride buffer (pH 10.7). A linear relationship was obtained in the magnesium concentration range of 0 160 ng·mL -1 with the detection limit of 0.04 ng·mL -1 . The proposed method was simple, rapid and sensitive. It has been successfully applied to the determination of trace magnesium in blood serum with recoveries of 103.75% and 98.16%, respectively.

关键词： Hydroxy 3 6 disulfonaphthylazo) 8 hydroxyquinoline 5 sulfonic acid magnesium spectrofluorimetry blood serum

Forming of A New Liquid Crystalline through Hydrogen Bonding

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wuhan university Journal of Natural {2. 1998年第2期3卷 209-213页

作者： Hu Yangjian, Huang Ronghua, Zhang Xianliang’(college of chemistry,{2.,wuhan 430072.China) wuhan university College of Chemistry Wuhan China (GRID:grid.49470.3e) (ISNI:***)

A stable Sc phase is formed through hydrogen bonding between side-chain aromatic acid groups of polysiloxane: Bending of polysiloxane with N-Acetyl Latimic acid (NAA) gives a chiral S c * phase; The influence of polymerism and hydrogen bond induction effect over mesophase is discussed. The influence of NAA over mesophase is studied.

关键词： hydrogen bond induction effect liquid crystal polysiloxane

Synthesis and Antibacterial Activities of Selenide Derivatives of Benzisoselenazolone

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wuhan university Journal of Natural {2. 2001年第4期6卷 851-853页

作者： Yang Li ping, Wu jun, Peng Yun shan, Liu Xiu fang, Xu Han sheng college of chemistry and {2., wuhan university, wuhan 430072. China college of chemistry and {2. Wuhan University Wuhan China

A series of Benzisolselenazolone (BISA) derivatives were synthesized and evaluated for their antibacterial activities againstE coli. by using LKB-2.77 bioactivity monitor. Other bioactivities were tested by the method of High Throughput Screening for pharmaceutical activity compounds (HTP) BISA derivatives 3b, at the concentration of 40 μg/mL, showed 100%antibacterial activity and 62.inhibition rate of aldose reductase (at the concentration of 5μg/mL). These new compound structures have determined by IR,1H NMR and MS spectra.

关键词： BISA Ebselen antibacterial activity NO synthase Aldose reductase

Hydrothermal Synthesis,Crystal Structure and Properties of Inorganic-Organic Hybrid Materials Based on Diphosphopentamolybdate

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Journal of wuhan university of Technology(Materials Science) 2008年第3期23卷 407-410页

作者：靳素荣 School of Science Wuhan University of Technology

The compound of diphosphopentamolybdate { [Cu（en）（Hen）]2.P2.o5O2.] }·3H2. [en=ethylenediamine] had been obtained from the hydrothermal method and characterized by single crystal X-ray diffraction, elemental analysis, FT-IR, and thermogravimetric analysis The structure consist of [P2.o5O2.]^6- clusters anions, complex [Cu（en）（Hen）]^3＋ cations and crystallization water molecules, which are held together to a two-dimensional framework The most interesting feature of the compound is that two nitrogen atoms are both coordinated with Cu（ Ⅱ ） in one ethylenediamine molecule, for the other ethylenediamine molecule, only one nitrogen atom is towards Cu（ Ⅱ） and the other nitrogen atom is protonated and formed Hen^＋.

关键词： polyoxometalate hydrothermal synthesis crystal structure coordination groups

Synthesis of Macrocyclic Arsinous Acid Esters

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Chinese Chemical Letters 1999年第12期10卷 0-0页

作者： Xin You CHENI Ying Qin YANG Wen Tian TAO(1’Department of chemistry, Xiaogan Teachers college, {2. 432.00)(2.epartment of chemistry, Xinyang Teachers college, Henan 464000)(3Department of chemistry, wuhan university, wuhan 430072. Department of chemistry Xiaogan Teachers College Department of chemistry Xinyang Teachers College Department of chemistry Wuhan University

The reactions of the his (dimethylamino) alkylarsine with dids lead to the formations ofmacrocyclic arsinous acid esters. The synthesis of title compounds was described and theirslructures were characterized by elemen... 详细信息

关键词： Bis (dimethylamino) alkylarsine macrocyclic arsinous acid ester synthesis.

Spontaneous Transformation of C_(60)Br_(2.) to C_(60) in Solvents

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wuhan university Journal of Natural {2. 1998年第2期3卷 255-256页

作者： Liu Ying Chen Yuanyin(college of chemistry,{2. university,{2.430072.China)Sheng Rongsheng Zhang Xungao(college of Analysis and Measurement Science,{2. university,{2. 430072.China) wuhan university College of Chemistry Wuhan China (GRID:grid.49470.3e) (ISNI:***) wuhan university College of Analysis and Measurement Science Wuhan China (GRID:grid.49470.3e) (ISNI:***)

It was f0und that C60Br2. transforms to C60spontaneously in some solvents. The intermediate,C60Br8, can be separated in some cases. When the bromlne trap, phenol, was added, p-bromophenol and other brominated product were obtalned and identlfled. The influences of time, the kind of solvent, etc were investlgated. Possible mechanlsm was suggested.

关键词： C60Br2. Dissociation C60Br8 C60