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Solvent-free Synthesis of Siloxanes and Their Usage as Potential Cross-Coupling Reagents Masafumi Unno1,2,a, Ryoji Tanaka1,2, Daisuke Obinata1, Mayuko Endo1, Tomoyuki Sakurai1, Satoshi Ojima1, Takako Katayama1 and Keigo Fugami1,b,* 1Department of Chemistry and Chemical Biology, Graduate School of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan 2International Education and Research Center for Silicon Science (Silicon Center), Graduate School of Engineering, Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan aunno@chem-bio.gunma-u.ac.jp, bfugami@chem-bio.gunma-u.ac.jp *corresponding author Keywords: Siloxane, Solvent-free Synthesis, Cross-coupling, Palladium, Halides, Biaryls.
We have noticed that the X-ray crystal analysis revealed that diphenylsilanediol is in a trimer structure, and expected solvent-free reaction could give cyclotrisiloxane exclusively.
Shirakawa, In: Handbook of Organopalladium Chemistry for Organic Synthesis; edited by E.
Shirakawa, In: Topics in Current Chemistry, Vol. 219; edited by N.

After vacuum annealing at T = 2000 °C, the metal substrates had a coarse-grained structure in the form of monoblock grains ranging in size from 200 to 2000 μm.
Ramsden, Influence of implant surface modification on integration with bone tissue, Journal of Biological Physics and Chemistry. 8 (2008) 147-150
Lavrynenko, Features of medical implant passivation using anodic oxide films, Journal of Biological Physics and Chemistry. 16 (2016) 90-94
Ramsden, The application of niobium and tantalum oxides for implant surface passivation, Journal of Biological Physics and Chemistry. 7 (2007) 141-145

Solvent-Free Stereoselective Synthesis of (E)-Ethyl-3-Aryl-Acrylates via Wittig Reaction of Arsonium Ylide by Grinding Wang Changqing*1,a, Yi Yanping1,b, Li Jiamin1,c, Xiao Daoan1,d, Liang Hui1,e, and Mei Guangquan*1, f 1Key Laboratory of Jiangxi University for Applied Chemistry and Chemical Biology, College of Chemistry and Bio-engineering, Yichun University, Yichun 336000, China apharmawang@163.com; bycxyyyp@163.com; cjiaminligz@163.com; dxiaodaoan2006@163.com; eachiless821009@163.com; fyc_mgq@163.com Keywords: Arsonium ylide, acrylates, wittig reaction, stereoselective synthesis Abstract.
For the standpoint of sustainable environment and minimising pollution, developing green chemistry methodologies has been receiving increasing attention.
The E-isomer structures of compounds 3a - l are confirmed by the coupling constants of alkenyl protons.

Interestingly, under the same heat treatment condition, choice of electrolyte has an influence on the crystalline structure of TNT.
Most of the studies suggested that electrolyte system plays a vital role in affecting the structure, morphology and geometrical features (and thus the specific surface area) of the resulted nanotubes [3,4].
Crystalline structure of the TNT films was determined by X-ray diffraction (XRD, Shimadzu D6000) using Cu Ka radiation (l = 1.5406 Å).
As crystalline structure of TNT is crucial for wide applications, thermal annealing is a convenient and easy way to convert the amorphous tubes into crystalline structure while retaining its well-ordered arrangement.
This finding is in contradiction with the work reported by other researchers that the crystalline structures remained unaffected with different electrolytic media [4, 11].

Study of an Inorganic Ion Exchanger Mg0.5Ti1.25O3 Jinhe Jiang MicroScale Science Institute , Department of Chemistry and Chemical Engineering ,Weifang University, Weifang, 261061,China Corresponding author.
Its composition and structure are different from those in literature, The experimental result have proved that the inorganic material has better selectivity and higher capacity of exchange for Li+ in the solution removed Li+ previously.
The structure of compound metal oxide Mg0.5Ti1.25O3 crystallized at 900℃ was much perfect.
As shown, the structure of MgTi-900(H) is nearly constant, which is spinel oxide type too.
Synthesis of Li4Mn0.5Ti0.5O4 and its selectivity to Li+ exchange[J].J.Chinese Journal of Applied Chemistry.2006,23(4),357-362 [4] Dan Li, Tian Long Deng, Bai Sun.

The band emergeing a group of peaks shows that many similar structure exist in this material and in different environments.
This maybe due to the central conjugate structure which leading the wave crest moving toward the reducing of the wave number.
Base on the 1HNMR and 13CNMR spectrum analysises of the polymer, the structure of the resulted polymers include a-(CH3)2CCN and ω-Cl and the obtained PVP could act as a macroinitiator for extension polymerization.
Radiation Physics and Chemistry Vol. 72(2005), p. 695-701 [6] K.Matyjaszewski and Jianhui Xia: J.
Macromolecular Chemistry and Physics Vol. 205 (2004), p. 806-813 [17] H.Peng, X.Q.Li, S.Y.Cheng and Z.Q.Fan: J.

China, 2 Key Laboratory of Synthetic and Natural Functional Molecular Chemistry, Xi’an 710069, P.R.
All diffraction peaks of the samples are identified as belonging to the orthorhombic crystal structure and a space group of Pnma.
No evidence of diffraction peaks for crystalline carbon (graphite) appears in the diffraction pattern, which indicates that the carbon generated from complexing agent is amorphous carbon and its presence does not affect the structure of LiFePO4.
We can see that lots of independent particles pack closely among the porous structure with a size range of 200nm-1mm, as shown in Fig. 4(a)-(c)..
Acknowledgements This work was co-supported by Natural Functional Molecular Chemistry and by Education Department of Shaanxi Province(2010JK765) and Ministry of Education Key Laboratory of Synthetic.

The CoSb3 type thermoelectric material with skutterudite structure and large Seebeck coefficients can be used in medium temperature and is considered as one of most promising thermoelectric materials [7].
Most works about skutterudites in recent years are concentrated on filling to the voids of the crystal lattice or substituting Co only by Fe or Ni, however, substituting Co by Fe and Ni at the same time maybe can improve the filling content of other elements and cause changes of crystal structures, further possibly improve thermoelectric properties of skutterudites [8-11].
Results and discussion Phases and densities of bulk FexCo4-xSb12 Fig.1 indicates that the major phases of the products are skutterudite structures while there is small minor impurity phase in the Fe2.0Co2.0Sb12 sample.
Zhu: Inorganic Chemistry Communications, Vol.7, No.3, (2004), p. 319-321 [7] B.C.
Chen: Journal of Solid State Chemistry, Vol. 179, No.1, (2006), p. 212-216

The design and study of Slotted cylinder of extrusion system Extrusion production rate is an important index for extrusion equipment performance evaluation, the key factors to determine extrusion production rate is out of the mechanical structure of the system and conveying mechanism.
Slotted cylinder and smooth cylinder on the structure of the main difference is whether the Solid conveying section has several axial slot or spiral groove.
Fig.4 Mixing screw The most important is that mixing screw make plastic melt sufficiently homogenized, So the key point of the design is to set the appropriate mixing, shear structure to ensure adequate molten material. h2 only a relatively small effect on the average temperature of the melt, Obviously, the shear section and the kneading section in the melt can be largely compensate for the lower efficiency due to the resulting deep h2.Through experiment also learned that the smaller the spiral groove depth can obtain good mixing effect.
Jónsson, in: Theoretical Methods in Condencsed Phase Chemistry, edited by S.D.
Schwartz, volume 5 of Progress in Theoretical Chemistry and Physics, chapter, 10, Kluwer Academic Publishers (2000)

A new copper Extractant and its Extraction Performances in Sulfate Medium Liqing Li1,2,, Hong Zhong1,a and Liuyin Xia1 1School of Chemistry and Chemical Engineering,Central South University, Changsha 410083, China 2 Faculty of Material and Chemical Engineering, Jiangxi University of Science and Technology, GanZhou 34100, China azhonghongcsu@163.com Keywords: Copper, Extraction performance, Extractant Abstract.
The structure of the new extractant named CEC is following figure.
Fig1 the structure of the new extractant named CEC The solvent extraction separation copper from simulated synthetic sulphate solution using CEC dissolved by kerosene has been studied.
The IR spectra of self-synthesized From the fig 2, the new copper extractrant is a kind of compound with oxime, and the structure is the same as 2-hydroxy-5-nonylbenzaldehyde.
Acknowledgements The authors express sincere thanks to School of Chemistry and Chemical Engineering, Central South University and Jiangxi University of Science and Technology.