A novel Microporous decatungstate was synthesized by using cationic l,10-diaminode-cane as template under mile chemical conditions. This material was constructed from highly ordered hexa nal array of 1,10-diaminodecane and decatungstate polyanions. HR-TEM image showed that the decatungstate polyanions "packed" around the l,10-diaminodecane molecules. XRD pattern confirmed its hexa nal array(a=b=1.718nm,cunaknown). A template mechanism was pro-posed to explain its formation process. It is evidenced that l,10-diaminodecane molecules play a crucial role in templating the inorganic framework. the cationic diaminodecane molecules "bond" decatungstate polyanions on each end via supermolecular interaction and thus form bolarform structure units. These units pack together and a hexa nal phase is constructed.

The transition from carbon nanotubes to diamond nanocrystals by vacuum evaporation is reported. The nanocrystals were characterized by transition electron microscopy (TEM) and high resolution transition electron microscopy(HRTEM). The micrographs and corresponding diffraction patterns showed that the nanocrystals with perfect crystal structure conformed to diamond clusters. The transition mechanism and process are primarily discussed.

The elementary reaction of C2H3＋ NO has been reported for the first time in this paper.C2H3 radical was produced by laser photolysis of vinyl bromide at 248 nm. Vibrationally excited reaction products H2CO,NCO and HCN were observed. Two exothermic reaction channels leading to HCN＋ H2CO and CH3＋ NCO are identified.

Some characteristics of Ag＋ biosorption and bioreduction by Lactobacillus sp. A09 biomass were reported. The optimum pH value of Ag＋ biosorption by strain A09 was 4.5. Temperature(6～ 50 ℃) did not affect the biosorption. The biosorptive efficiency (91％) and biosorptive capacity(Ag＋ 125 mg• g－ 1 dry weight biomass ) were achieved under the conditions of Ag＋ 100 mg• L－ 1, biomass 800 mg• L－ 1, pH 4.5 and 30 ℃ for 24 h contact. TEM analysis indicated that A09 biomass could reduce Ag＋ to Ag0 as Ag particles on the surface of cells. IR spectroscopy showed that － CO2－ and － HN－ C=O on the surface of cells may involve in the precession for adsorbing Ag＋ .

Structures of inorganic unsaturated fragments H2PBLiF have been examined in detail by ab initio method at HF/6- 31G** level, three equilibrium geometries (Geometry 2,1 and 3) of H2PBLiF and two transition states (4 and 5) for isomerization reactions between the three geometries were obtained. The kinetic analysis indicates that the two basic geometries (1 and 3) took part in chemical reaction. The characteristics and stability of the involved geometries were analyzed in terms of the Mülliken populations, and chemical activities for the two basic geometries were also briefly discussed.

An amphiphilic azo-methine dye (E)- N- octadecyl- 2- [2- (4- N,N- dimethyl aminophenyl)azomethinyl] pyridinium iodide (PN2),was synthesized. The dye molecule was successfully transferred onto quartz (or ITO slides) by Langmiur- Blodgett (LB) technique. The study on its photochemical and photoelectrochemical properties indicates that the azo-methine dye is a photodegradable compound. And second- harmonic generation (SHG) and photoelectric conversion (PEC) properties for this dye were observed. Its is 145.6 pm•V - 1, and its quantum yield of photocurrent generation is 1.37％ in 0.5 mol•L－1 KCl solution containing 0.1 mmol•L－1 hydroquinone, degassed with N2 and at zero bias voltage (vs SCE).

 Transparent anatase TiO2 nanometer thin films were prepared via the sol- gel process using the TiO2 sol solution on soda- lime glass. XRD patterns of films show that the single anatase phase is precipitated when the thickness of TiO2 films is over 0.46 μ m and there is some orientation effect in (101) direction. However, XRD patterns show almost no peaks of anatase when the thickness is smaller than 0.46 μ m, which is attributed to an insufficient content of titanium dioxide. The transmittance of TiO2 films decreases, the average crystalline size of TiO2 films increase and the absorption edge wavelength of TiO2 films becomes larger with increasing cycle times and film thickness. The chemical compositions of the films were analyzed with X- ray photoelectron spectroscopy (XPS). Experiment results show that besides Ti and O elements, there is a certain amount of residual carbon from the starting organometallic components and a small amount of sodium and calcium ions diffused from the glass substrates.

Electrical conductivity of Ni- V- O series catalysts was measured under different sequential gaseous atmospheres and at different temperatures, their conduction type was detemined and their catalytic behaviour in oxidative dehydrogenation of propane to propene was investigated. It was found that p- type semiconductor catalysts have a better catalytic behaviour than n- type ones. In reaction mixture, the higher the electrical conductivity of p- type semiconductor, the higher its catalytic activity, the lower electrical conductivity of n- type semiconductor, the higher its catalytic activity. These are due to different mechanism of the formation of the partial charged oxygen species on the surface of catalysts.

The space group of [(C4H9)4N]3[Sc(NCS)6]• 3.5 H2O is revised from orthorhombic Pbca to cubic Pa by solving the cubic structure from the structure factors that are simulated from the orthorhombic structure. The space groups of three other scandium(III) structures that were originally reported in lower- symmetry settings are revised to higher- symmetry centrosymmetric settings: Sc(PMBP)3(HPMBP=1- phenyl- 3- methyl- 4- benzoylpyrazol- 5- one)from P to C 2/c, [(H2O)10(OH)2Sc2] (C6H5SO3)4•4H2O from P1 to C 2/c and [Sc(NO3)3(H2O)3]• 18- crown- 6 from Pna21 to Pnma.

Multiphoton ionization of binary clusters (C4H5N)－ NH3 at 355 and 532 nm have been investigated using a TOF mass spectrometer. The experimenal results showed that normal cluster ions and protonated cluster ions were produced at both laser wavelengths. The protonated products came from the intracluster proton transfer reaction. The existence of NH3 in the clusters increased the ionization cross sections of the clusters. The higher ionization efficiency at 355 nm results from the (2＋ 1) resonance multiphoton ionization of the pyrrole molecule. A peculiar low abundance of was observed, ab initio calculations indicated that when ammonia number n ≥ 3,two hydrogen bonds between ammnia chain and pyrrole ring can be formed, and the cluster become more stable. The channel ratio for the formation of protonated and unprotonated products increases with the increase of n,in agreement with the trend of proton affinity of (C4H5N)－ (NH3 )n.

The binary cluster ions composed of Fe/P、 Co/P and Ni/P were generated by laser ablation. The composition of these binary cluster ions and the photodissociation of the cluster cations were studied by Tandem TOF MS. The experimental results show that sample with more phosphorus is favourable to the formation of large clusters. For clusters containing a few metal atoms the number of P atoms can vary over a wide range, and clusters,、 and (M=Fe、 Co、 Ni, n=2、 3、 4) are more abundant. In the clusters containing more metal atoms, the number of phosphorus atoms does not change greatly, and the atomic ratio of Fe and P tends to 1:1,the compositional Co/P cluster cations tend to be rich in phosphorus ,and contrarily, Ni/P cluster cations contain much more Ni atoms than P atoms. For cluster anions, the composition changes from metal rich to phosphorus rich with the increase of phosphorus in the sample. The photodissociation indicates that for Fe/P cluster cations,P2 or P4 was stripped easily, while for Co/P and Ni/P cluster cations, the main channel is P2 and P4 stripped, or neutral fragment MnPm(m is even) lost. 

The solidification process of Cu melts has been performed at constant temperature and constant pressure by mean of molecular dynamic simulation technique. EAM(embedded- atom method) potential functions have been adopted to describe the atomic interaction. The pair correlation functions of liquid Cu at different cooling rate and temperature have been used to reveal the structural features of liquid, super- cooled liquid, glass state and crystal. The results indicate that the EAM potential function can well describe liquid- solid transition of Cu, the Cu melts become the glass state during relatively high cooling rate; and crystallize out during relatively low cooling rate. The structure transition of Cu in the cooling process has been analyzed through thermodynamics and kinetics. And the crystal growth of Cu has been observed by using crystal- liquid configuration method.

The aniline solution containing nicotinamide adenine dinucleotide(NAD＋ )was electrolyzed. Polyaniline film with NAD＋ formed on the platinum thin plate. The thickness of the film was controlled by the charge consumed in the electrolysis, which was 0.006 C in this case. This electrode, used as an anode, was immersed in the solution containing aniline. A second film formed on this electrode during the electrolysis. The charge passed during the second electrolysis was 0.016 C. Alcohol dehydrogenase(ADH) was immobilized on the polyaniline film based on the isoelectric point of ADH and the doping principle of conducting polymers. The enzyme electrode has a od bioelectrochemical response to ethanol in the absence of a homogeneous mediator. The optimum pH, apparent Michaelis- Menten constant and optimum temperature of ADH immobilized in polyaniline film are 7.83, 7.5 mmol• dm－ 3, and 30.6 ℃ , respectively. The activation energy of the enzyme- catalyzed reaction is 33.5 kJ• mol－ 1. The response current of the enzyme electrode increases linearly with increasing concentration of ethanol below 2.4 mmol• dm－ 3.This enzyme electrode can be used to determine the concentration of ethanol.

On the basis of Ore nator model, the influence of acid on B- Z oscillating reaction is analyzed, the dynamic regime of B- Z reaction with acid value B and model parameter h (the concentration of NaBrO3 is certain), and the time - series plots、 2- D and 3- D phase plots of each component under different acid conditions are given, and also the curves of acid B vs. oscillating period and amplitude. This made the theory of the threshold values of B- Z oscillating reaction more completely. The experimental results proved that the model is correct.

The coupling of methane in the presence of oxygen under pulse corona plasma was examined under normal pressure and at ambient temperature. Experimental results show that composition and distribution of C2 products in the presence of oxygen is similar to that in the absence of oxygen. With increasing energy input to the plasma reactor, methane conversion, oxygen conversion and C2 yield were enhanced. Increasing the O2/CH4 ratio gave higher conversions of methane and oxygen. The yield of C2 products increased slightly only in the range of O2/CH4 ratio less than 0.16 when feeding with a mixture of methane and oxygen. If oxygen is introduced at the end of the methane plasma, a higher C2 yield and lower CO yield can be obtained and CO2 can not be detected in the product.

The artificial neural network method is utilized to study the correlation between the overall hydrogen- bond basicity (Σβ2H ) values of 231 diverse compounds and their quantum chemical parameters. There are nonlinear relationships of theΣβ2H values with the quantum chemical parameters. The BP neural networks can predict theΣβ2H values when the neural units of the input layers are the quantum chemical parameters. The structures of the BP neural networks or the quantum chemical parameters are different when the compounds belong to different classes.

The solubility properties of ZnSO4-Leu-H2O system at 25℃ in the whole concentration range have been investigated by phase equilibrium method, and the corresponding phase diagrams and rafractive index-composition curve have been constructed. The result indicate that system is simple system, which do not exist any compound. Referred to literature, the compound of Zn(Leu)SO4•1/2H2O、 Zn(Leu)2 which are not reported in literature have been prepared. Their composition have been determined by chemical analysis and elemental analysis. Their propeties have been characterized by IR spectra, XRD and TG- DTG.

A theoretical scheme is presented which is based on an activation model for calculating the rate of the electron- exchange reaction between transition metal complexes in aqueous solution and applies to Co(H2O)6 2+/3+ electron transfer system. The activation parameter and activation energy of the system are obtained via the activation model. The slopes of the potential energy surfaces (curves) of the reacting system at the separated reactants are calculated from the fitted potential energy curves. The coupling matrix element is determined by using the perturbation theory and numerical integral method. Theoretical rate constants are obtained for the system at both UHF/6-311G and UMP2/6-311G levels. The agreement of the theoretical results with experimetal values is excellent. This fact indicates the scheme proposed is feasible and accurate in studying the self- exchange eletron transfer reaction.

The anti- corrosion performance of iron is greatly improved after octadecylamine (ODA) treatment. It is assumed from AES that the structure of surface layer of samples treated with ODA is as follows:
Lower ODA concentration: iron | iron oxide | ODA layer with iron oxide
Higher ODA concentration: iron | iron oxide | ODA layer with iron oxide | pure ODA layer
It is shown from infrared specular reflection that the surface layer of iron treated with higher ODA concentration reflects ν (CH) absorption peak corresponding to pure ODA layer. Every ν (CH) absorption peak shows opposite absorption phenomenon because of reflection from the iron oxide, which is under the pure ODA layer. Photoelectrochemical study exhibits that ODA treatment leads to the changes in physical structure of iron oxide layer.
ODA treatment was successfully applied to lay- up protection in power plant.