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Synthesis and Photochromism studies of 1-(2,4-dimethoxyl-5-pyrimidinyl)-2-[2-methyl-5-(3-trifluoromethylphenyl)-3-thienyl]perfluorocyclopentene Xugang Tang, Hongjing Jia and Shouzhi Pu* Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University Nanchang 330013, P.R.China pushouzhi@tsinghua.org.cn Keywords: Diarylethene, Pyrimidine, Photochromism, Fluorescence.
The structure of diarylethene 1o was confirmed by 1H NMR (400 MHz, CDCl3, TMS): δ 2.07 (s, 3H, -CH3), 3.75 (s, 3H, -OCH3), 4.02 (s, 3H, -OCH3), 7.72 (d, 1H, benzene-H), 7.51 (t, 1H, benzene-H), 7.34 (d, 1H, benzene-H), 7.68 (d, 1H, benzene-H), 7.35 (s, 1H, thiophene-H), 8.35 (s, 1H, pyrimidine-H).

In recent years, searching for the multifunctional switches of the dithiethylethene compounds become a new goal in this area, an effective method is to modify the structure by attaching the functional groups to the chromic unit, and various attempts have been employed to promote the function of molecules [5,6].
Elemental analyses (C, H, and N) were performed by the Microanalytical Services, College of Chemistry, CCNU. 1H, 13C, and 31P NMR spectra were collected on American Varian Mercury Plus 400 spectrometer (400 MHz). 1H and 13C NMR chemical shifts are relative to TMS, and 31P NMR chemical shifts are relative to 85% H3PO4.

Both give faster output depend on how the structure of the experiment.
Linstrom, Prompt gamma-ray activation analysis: Fundamentals and applications, Journal of Radiaoanalytical and Nuclear Chemistry 243(1) (2000) 181-189

Material and method This paper presents a new design of the anterior cruciate ligament (ACL) composed of a cylindrical wire winding structure made from nitinol, with a diameter of 5.7 mm and a length of 100 mm (Figure 1).
Series B: Chemistry and Materials Science. 71 (1) (2009) 91-100

Studies on Degradation of Methylene Blue by Potassium Ferrate Jinlian Li 1, a, Hongmei Zhang 1, b, Jinhuan Li 2, c and Yanguang Chen1, d 1Provincial Key Laboratory of Oil & Gas Chemical Technology, College of Chemistry & Chemical Engineering, Northeast Petroleum University, Daqing 163318, P.R.China; 2Shengli Engineering & Consulting Co., Ltd, Dongying, 257000, Shandong, P.R.China alijinlian33@163.com, bcxhzhm@163.com, c jinhuan_li@126.com, dygchen79310@126.com Key words: ferrate; methylene blue dye; decoloration Abstract.
MATERIALS AND METHODS Reagents Table 1 Experiment reagents reagent structure molecular weight absorption wavelength[nm] manufacturer methylene blue 373.90 650 Third Reagent Factory in Shenyang potassium ferrate 198.04 505 homemade Calculation The degradation efficiency for each sample was calculated by the following Eq. (1)

Results and Discussion XRD analysis shows that ZnO nanoparticles and nanowires have hexagonal wurtzite crystal structure.
Siegbahn, Journal of Photochemistry and photobiology A: Chemistry, Vol. 148 (2002), p. 57 [6] P.

Application of a mixture of Oxidized Multi-walled Carbon Nanotubes and D-(-)-tartaric Acid-impregnated Silica Gel as Stationary Phases for Thin-layer Chromatographic Enantioseparation Zhi Guang Peng1, 2, Dong Hong Yin2, Jian Fu Liu2, Jin Gang Yu1,a, Xiao Na Yang1, Dong Ming Zeng1 1 College of Chemistry and Chemical Engineering, Central South University, Changsha, Hunan 410083, China 2 R&D Center, China Tobacco Hunan Industrial Corporation, Changsha 410014, Hunan, China ayujg_zhoufl@yahoo.com Keywords: Oxidized Multi-walled Carbon Nanotubes, Enantioseparation, Ofloxacin, Thin-layer Chromatography Abstract: The oxidized multi-walled carbon nanotubes were prepared by a nitric acid treatment procedure, which were then used as additive in thin-layer chromatography stationary phases for resolution of ofloxacin, mandelic acid and 2-chloro-mandelic acid enantiomers.
Chemical structure of ofloxacin (A), mandelic acid (B) and 2-chloro-mandelic acid (C).

Jacobsen2 and Iver Schmidt 2 1 Department of Chemistry, Technical University of Denmark, DK-2800 Lyngby, Denmark 2 Haldor Topsøe A/S, Nymøllevej 55, DK-2800 Lyngby, Denmark Keywords: Zeolites, ZSM5, in situ powder diffraction.
The structure refinements started with parameters from Koningsveld et al. [5].

Multithreaded programming structure was used and queue was used to storage key perform and then run in turn.
Handbook of chemistry and physics [M], Beijing: Peking University Press, Vol.1 (2003).

Chinese Journal of Analytical Chemistry, 2012(40):331-338 [3] Marko Usaj, Karel Flisar, Damijan Miklavcic, Masa Kanduser.
Analysis and experimental investigation of dielectrophoretic force in a planar electrode structure.