The photodissociation spectrum of(C 6H 5F) 2 +  is obtained from the yields of fragment C 6H 5F + ion as a function of photodissociation wavelength in the 390nm-960nm region. The band at about 420nm is attributed to the C←X local excitation band of single C 6H 5F + ion; the band at about 905nm is assigned to charge resonance band. The experiment and theoritical computation show that the binding energy is 0.70eV, and the charge is shared with the two molecules in (C 6H 5F) + 2 ,and a parallel structure for(C 6H 5F) + 2.

The formation and structure of lyotropic liquid crystal of poly(sodium sulfoalkyl methacrylates)(PSSRMA) with different alkyl side chain length were studied. It is showed that the lyotropic liquid crystal could be formed for PSSRMA-H2O system. The d-spacings of these polymers are in the range of 16.35-12.26 nm, which are much more than those formed by ordinary amphiphilic molecules. The micelles made up of single chain of PSSRMA polymers were arranged in order of hexa n or lamella to form lyotropic liquid crystal phase .The shorter the side chain of the PSSRMA, the longer the d-spacing of the formed liquid crystal and vice versa. It is supposed that the electrostatic repulsion between two neighboring charged groups will be stronger for the shorter side chain due to a closer molecular arrangement, making the polymer chain extending and less flexible.

Calcium hydroxyapatite [Ca 10 (OH) 2(PO 4) 6]and protein are main compositions of bones and tooth of animals. The interaction of protein with calcium hydroxyapatite plays an important role in biomineralization process. In this paper, a series of soluble bovine serum albumin (BSA)-calcium hydroxyapatite complexes in aqueous solution produced by different initial mole ratio of solid calcium hydroxyapatite and BSA were studied using FTIR spectroscopy. The results show that the composition of the soluble BSA-calcium hydroxyapatite complexes is nonstoichiometric. Calcium hydroxyapatite may be involved in hydrogen bonding to and coordinating with BSA in the soluble complexes. The interaction of BSA with calcium hydroxyapatite increased the solubility of calcium hydroxyapatite in aqueous solution, which is helpful for the formation of self organized structure of protein calcium hydroxyapatite complexes.

The solvothermal technique was used for the synthesis of [M(en) 3] 2Sn2Sn6(M=Mn,Zn), which contains a zintl anion, [Sn2Sn6]4- and a complex cation, [M(en) 3] 2+ .The crystal structure has been determined by signle crystal X ray diffraction techniques. Both compounds crystallize in orthorhombic, space group Pbca with unit cell dimensions a =1.5927(4)nm, b =1.2204(3)nm, c =1.9336(7)nm, V =3.758(2)nm 3, Z =4 for [Mn(en) 3] 2Sn 2Se 6;and a =1.5390(3)nm, b =1.1914(3)nm, c =1.9210(3)nm, V =3.522(1)nm 3, Z =4 for [Zn(en) 3] 2Sn 2Se 6.Optical studies performed on the powder sample suggested that both compounds are semiconductors with a band gap of 1.76eV for [Mn(en) 3] 2Sn 2Se 6,and 2.49eV for [Zn(en) 3] 2Sn 2Se 6.The result of TGA thermal analysis on [Zn(en) 3] 2Sn 2Se 6 indicated that the loss of enthylendiamine proceeded in three steps. The decomposition of [Zn(en) 3] 2Sn 2Se 6 produced ZnSe, SnSe and Se as the final residues.

The spectral behaviors of several coumarins in various solvents have been studied in this work. Structural influence and solvent effects on their photophysical properties have been investigated. Some relationships between their photophysical properties and their structural features and the polarity parameters of solvents have been found.

The ground electronic state X 5Σ + g and the reasonable dissociation limits of the PuO2 molecule are derived based on the Atomic and Molecular Reactive Statics. In the MP2 (The HF calculation followed by a second-order Moller-Plesset correlation) level, using the RECP(relativistic effective core potential) for Pu atom and 6 311G* basis for O atom , the present work has optimized the equilibrium geometry for the linear O-Pu-O( D ∞h ), ground state X 5Σg + of PuO2, whose equilibrium nuclear distance and dissociation energy are 0.180 04nm and 12.551 eV respectively. And the metastable structure Pu-O-O( C ∞v )is found for the first time, which is 6.79 eV higher than the stable structure. The analytical potential energy function for the ground state X 5Σg + of PuO 2 has also been derived using many body expansion method, the potential energy function is successfully used for describing the equilibrium geometry of PuO 2 and PuOO, which is adequately accurate in the whole region for the dynamical research. 

The catalytic role of MV 2+ in the electron transfer reaction between C 60 and Et 3N was directly proved by means of ESR technique. The active radical intermediate produced during the catalysis was confirmed to be MV +• andC 60-•radicals. In contrast, without the presence of MV 2+ the process of the electron transfer can not proceed at room temperature any more.

The framework stability and surface acidity of zeolite β have been studied by infrared spectroscopy. The results show that the framework stability and surface acidity of H β zeolite depend on the experimental condition of template removal from the parent β zeolite. With thermal decomposition in vacuum at 450 ℃ and 550 ℃, the IR spectrum of H β exhibited exclusively two intense bands (3610 cm -1 and 3740 cm -1 )showing relatively ideal of its framework and high Bronsted acidity. If the template was burned off in air at 550 ℃,the 3610 cm -1 band of H β diminished considerably and two new IR bands (3780 cm -1 and 3670 cm -1 ) appeared, indicating the obvious framework dealumination. The later H β showed high Lewis acidity.

The effect of gas phase O 2, reversibly adsorbed oxygen and the surface state of Ni/Al 2O 3 catalyst on the decomposition of CH 4 and partial oxidation of CH 4 were studied using transient response technique at atmospheric pressure and 700 ℃. The results show that, when the catalyst surface is completely oxidized under experimental conditions, only a small amount of CO and H 2 can be produced from non-selective oxidization of CH 4 by reversibly adsorbed oxygen which is more active in oxidizing CH 4 completely than NiO via Rideal-Eley mechanism and both the conversions of CH 4 and O 2 and the selectivities to CO and H 2 are very low. Therefore, keeping the catalyst surface in the reduction state is the prerequi sation of high conversion of CH 4 and high selectivities to CO and H 2.The surface state of the catalyst decides the reaction mechanism and plays a very important role in the conversions and selectivities of partial oxidation of CH 4. During partial oxidation of CH 4, no oxygen species but a small amount of carbon exists on the catalyst surface, which is favorable for maintaining the catalyst in the reduction state and the selectivity of CO. The results also indicate that direct oxidation is the main route for partial oxidation of CH 4, and indirect oxidation mechanism is impossible to gain dominance in the reaction under the experimental conditions. 

 A novel kind of polymeric carbons has been prepared by heat treating addition polymers with a crosslinker divinyl benzene (DVB) at 600 ℃. Effects of DVB on the properties of anode materials based on polyacrylonitrile (PAN) for lithium ion secondary battery were studied through the measurements of X ray powder diffraction, elemental analysis, scanning electron microscopy, specific surface area and reversible lithium capacity. The crosslinker DVB favors carbonization process and the contents of H and N in the prepared polymeric carbons are decreased. This kind of carbons is amorphous, however, after the addition of crosslinker DVB, the interlayer distance d 002 decreases and the size of graphite crystallites( Lc ) increases. The action of fixing of the incorporated DVB leads to more ordered stacking of graphene molecules during the-heat-treatment. In addition, the number of micropores increases. These favorable factors result in the reversible lithium capacity of carbon anode based on PAN enhancing with the amount of crosslinker DVB added. This enhancement also applies to polymeric carbon based on other additional polymers. Results of polymeric carbons based on poly(4 vinyl pyridine)shows the same tendency. The highest reversible capacity can be up to 600 mAh•g -1 .

The growth thermograms of variation strains of Escherichia coli and Salmonella typhi were studied using LKB 2277 Bioactivity Monitor. The results showed that the changes of the growth thermograms of bacterial variation strains are related to the variation of bacteria. Variation strain which is positive or negative for the same substrate can be distinguished obviously by their growth thermograms if medium is suitably chosen.

The association of a series of anionic surfactants (C n H 2 n +1 SO 3Na, n =5,8,10,12,14) with β-cyclodextrin was studied by means of the isothermal titration calorimeter(ITC) at 298.15 K. For these type of inclusion complexes, the results agreed well with a 1:1 association model. Apparent values for the association constants, and changes in the standard molar Gibbs energies, enthalpies, entropies ,were derived for the association process. The results indicated that the association of surfactants with β-cyclodextrin are favorable by both enthalpy and entropy changes. The results also indicated that -Δ GΘincrease steadily with an increasing of alkyl chain length of the surfactants. The results also demonstrated that the longer chain tail of surfactant, the greater the association constant with β-cyclodextrin .

Benzene hydrogenation was used as a test reaction for the ultrafine amorphous Ni P catalysts prepared by chemical reduction. The results show that the preparation temperature and initial pH of the solutions strongly affect their structures and the activities of benzene hydrogenation. XAFS and DTA were employed to characterize the structures of the amorphous Ni P alloys prepared under different conditions and annealed at various temperatures. It was found that an abrupt decrease of the catalytic activity was observed at the annealing temperature of about 300℃,which corresponds to the crystallization temperature of the amorphous Ni P alloy catalysts.