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In this paper, the germanium thin film and Ge/Si multilayer structure were fabricated by magnetron sputtering technique.
Meanwhile, the results show that the optical properties and structures are different between the monolayer and the multilayer films.
The influence of the structures on the optical properties were proposed and discussed.
However, a high area density of germanium grains on the surface can be obtained in the nc-Ge/a-Si multilayer structure.
Fu: Chinese Journal of Inorganic Chemistry.

Results and discussions Performance, structure and photocatalytic activity of S-doped TiO2 catalyst.
In the energy band structure, the S3p orbital has a relatively higher energy level than the O2p orbital.
Performance, structure and photocatalytic activity of Eosin-sensitized TiO2 catalyst.
[10] Sayama K, Arakawa H: Journal of Photochemistry and Photobiology A: Chemistry Vol. 77 (1994), p. 243
[29] Abe R, Hara K, Sayama K, et al: Journal of Photochemistry and Photobiology A: Chemistry Vol. 137 (2000), p. 63

Recently, high pressure studies of nano-sized material attracts so much attention as the nano structure’s novel physics and chemistry property, especially those relative smaller sized particles that exhibit extremely attractive results. [7-8] For the nano-GeO2, Wang et al studied high pressure induced phase transition of the α-quartz GeO2 with average crystallite sizes of 40nm and 260 nm. suggested that defects in the starting material which alter the free energies of the amorphous phase and the monoclinic phase, may play a key role for the phase transformation of GeO2.
Benzene, tetrahydrofuran (THF) and ethanol was purchased from Beijing Chemistry Factory, China.
The individual image reveals that the product is single crystal structures as shown in Fig. 1b.
The SEM image shows the hollow structure of the sample, as shown in Fig. 1c.
Another explanation for this phenomenon may be as follows: when the 20 nm particles forms the waxberry structure by self assembly procedure.

Indeed, the amide I band is sensitive to the structure of this backbone protein [26].
Istria (Master 1 student in chemistry at the University Pierre et Marie Curie, Paris VI, 2008) for helping us with the heating experiments.
Currey, Bones: Structure and mechanics (Princeton University Press, 2002)
Falguères: Analytical and Biological Chemistry Vol. 392 (2008) p1479
Bailey: The Journal of Biological Chemistry Vol. 275 (2000) p3014.

Jebur AL-Joubory1,a, Rabiha Hameed Saleh2,b, Omar Abdulrahman Mohammed3,c* 1Department of Chemistry, College of Science, Tikrit University, Iraq 2Iraqi Ministry of Education, Directorate of Saladeen Education, Iraq 3Iraqi Ministry of Education, Directorate of Anbar Education, Iraq omarabdulrahman265@gmail.com* Keywords: 3-nitro phthalic anhydride, Schiff bases, 2-azetidinones, heterocyclic compounds.
The compounds of all the newly synthesized structures were confirmed by and, I.R. and 1H NMR as well as melting point.
The chemistry of imides have given impetus special, due to of the find of their pharmacological and uses [4].
Fig. (1): FT-IR for compound (A1 ) Fig. (2): 1H-MNR spectrum of compound (A6) The structure of synthesis compounds were confirmed by melting point.
Fig. (4): 1H-MNR spectrum of compound (A2) The structure of synthesized compounds were confirmed by measuring there melting-point, IR and 1H-NMR.

The material is mainly the hexagonal structure and space group, and there is a little other phase.
The material forms a hexagonal structure with space group , Layered LiCoO2 is widely used as the main cathode materials for Lithum-ion battery because of its stable physical and chemical properites.
Among them hexagonal-LiMnO2 has the similar crystal structure as LiMnO2,Its theoretical capacity is up to 285mAh/g, and discharge voltage is about 4.3v or so.
But layered LiMnO2 is metastable phase which will restrict the application for the material:There are irreversible change of structure during the charge-discharge process,which will finally lead to electrochemical performance of the materials deteriorated.
,Electrochimica Acta, Vol 53(2008), p. 7298 [16] N.Treuil,C.Labrugère,M.Menetrier et al., Physical Chemistry B.

Structure and Properties of Chitosan Origin and Production of Chitosan.
Structure of chitosan (DA: degree of acetylation).
The structure of chitosan (presence of hydroxyl and amine groups) makes possible a number of grafting pathways.
However, the uncontrolled drying results in an irreversible collapse of the porous structure: freeze drying and more specifically drying under supercritical CO2 conditions are the only processes reported for drying these hydrogels without loosing the highly porous structure.
Roberts: Chitin Chemistry (McMillan, Oxford, U.K. 1992) [2] P.

This phenomenon occurs within a small temperature range producing porous structures and finally formed homogeneous morphologies of amorphous carbon.
This fact indicates that the carbon has amorphous structure.
In the other hand, the contribution of the surface chemistry of activated carbon such as oxygen and nature of the functions present on the surface determine the ability of carbon to interact chemically with the matrix.
According to the bibliography at higher temperature, the porosity decreases at the same time as the carbon structure of the material is organized.
Pilato, Phenolic resins: Chemistry, Applications and Performance, FutureDirections.

Lushnikov Moscow State University, Chemistry Department, Moscow 119992, Russia lushnikov@hydride.chem.msu.ru Keywords: intermetallic compounds, metal hydrides, diffusion of hydrogen atoms.
Most interesting are hydrides formed on the base of RT3 compounds (CeNi3 intermetallic with the CeNi3 structure) also called anisotropic hydrides and having unusual structure and behavior under hydrogenation [2].
The structure of the CeNi3 compound consists of CeNi2 (MgZn2 structure) and CeNi5 (CaCu5 structure) slabs, stacking along z axes.
So the lattice comes back to hexagonal structure of initial intermetalic CeNi3 with minor deformation.
This prevented a structure transition of the metallic lattice from orthorhombic to hexagonal and obtained obtained of the CeNi3Н0.9 powder has an orthorhombic structure.

Additionally, it boasts high adsorption capacity and a well-structured pore framework that facilitates free diffusion between substrates during the catalytic process [15].
This indicates that the catalysts have an amorphous structure.
SP 2-400, treated with 2 M phosphoric acid and calcinated at 400 °C, showed the highest acidity of 4.29 mmol ammonia/g, with an amorphous structure with a content of 5.60% P.
It offers an amorphous structure with 0.07% Ni atomic content.
Acknowledgment The authors would like to thank the Physical Chemistry Laboratory, Department of Chemistry, Universitas Gadjah Mada for the technical and scientific support.