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Both TiN and NbN are fcc(face-centered cubic) structure, and their space group are FM3-M.
For a cubic crystal，such as TiN、NbN structure, they are reduced to three components(Cll，C12，C44).
The band structure and density of states are shown respectively in Fig.1.
Roumili: Materials Chemistry and Physics, Vol.91(2005), p.17 [4] Vanderbilt D: Physical Review B, Vol. 419(1990), p.7892 [5] J.P.
Anderson: The Journal of Physics and Chemistry of Solids, Vol.24(1963), p. 909 [11] M.

Polylactide-b-Poly(Ethylene Glycol)-b-Polylactide Triblock Copolymer Films for Using as Drug Delivery Carriers Pattarin Intaravichiena and Prasong Srihanamb The Center of Excellence in Chemistry (PERCH-CIC), Department of Chemistry, Faculty of Science, Mahasarakham University, Kantharawichai District, Maha Sarakham 44150, Thailand aBEWBEW2553@hotmail.co.th, bprasong.s@msu.ac.th Keywords: Biodegradable polymer, Triblock copolymer, Polylactic acid, Stereocomplex, Film Abstract.
The crystalline structure of the film samples was observed by wide-angle X-ray diffractometer (XRD) at room temperature using CuKα radiation at 40 kV and 40 mA.
For XRD, the scanning angle range of 2θ = 5°-30°° at a scan speed of 3°/min was used to determine the crystalline structures.
The native PLLA-PEG-PLLA film exhibited a diffraction peak at 17๐, 19๐ and 23๐ attributed to homocrystalline structure of the polylactide matrix [15] while all the blend films showed diffraction-peaks at 12°, 21° and 24° corresponding to stereocomplex crystallites structure of PLA.
Acknowledgments The authors would like to thank the Center of Excellence in Chemistry (PERCH-CIC), Department of Chemistry, Faculty of Science, Mahasarakham University, for chemicals support.

Molecular Structure (FTIR).
A broad band centered at ~650 cm-1 is assigned to Ti-O bond in perovskite structure.
Shyue: Inorganic Chemistry Vol. 48 (2009), p. 681
Payen: Chemistry of Materials Vol. 7 (1995), p. 2168
Woolfey: Inorganic Chemistry Vol. 37 (1998), p. 2741.

According to Lehn’s definition to the supermolecule chemistry, the TiO2/SiO2 is host specie, and the POM anion is guest specie [11].
These IR absorption data are very useful to identify the structure of POMs.
Kiwi, “Accelerated photobleaching of Orange II on novel (H5FeW12O4010H2O)/silica structured fabrics, Water Res., vol. 38, 2004,  pp. 3541–3550
Lehn, “Supramolecular chemistry-scope and perspectives molecules, supermolecules and molecular devices (Nobel Lecture),” Agew.
Xu, Introduction of the Polyoxometalate Chemistry, Chemical Industry Press, 1st ed.

Electrochemical Title Performance of LiMn2O4 Synthesized by Flameless solution Combustion with Acetate System Lei Zhong1, 2, Mingwu Xiang1, 2, Bin Li1, 2, Zhifang Zhang1, 2, Changwei Su1, 2, Hongli Bai1, 2, Junming Guo1, 2, * 1 School of Chemistry and Biotechnology, Yunnan University of Nationalities, Kunming 650500, P.
The influence of HNO3 on the morphologies, crystal structure and electrochemical performances of the material was investigated.
The structures of products were studied using X-ray diffraction (Rigaku TTR III, Rigaku D/MAX-2500v/pc, Cu-Kα) and scanning electron microscope (FEI Company QUANTA 200 type).
A soft chemistry synthesis and electrochemical properties of LiV3O8 as cathode material for lithium secondary batteries Solid State Ionics 176 (2005) 1549-1554
Asian Journal of Chemistry, (2013) 25 (4): 1917-1920.

Discussion On The Structure Of Boron Containing Apatite A.Baykal1, G.
Kniep 4 1 Fatih University, Chemistry Department, Büyükçekmece, Istanbul ,Turkey 2 Çimento Müstahsilleri Birliği, Ankara ,Turkey 3Middle East Technical University, Department of Chemistry, 06531,Ankara, Turkey 4Max-Plank Institut für Chemische Phys fester stoffe in VEM sachsenwerk, D-0125, Dresden-Germany Keywords: Apatite, Boron Apatite, X-ray Diffraction, FTIR Analysis,Solid State Synthesis, Abstract.
From the structural point of view compounds with apatite structure containing extra ions have lower symmetry.
This cast doubt upon characterizing apatite structures with the space group P63/m [3].
Boron containing apatite has an apatite structure but with lower symmetry. 00l reflections with l odd reveals the loss of the 63 axis, characteristic of the hexagonal apatite structure.

Polypropylene/wood flour composites prepared by solid state shear milling Hao Shi1,2, a, Li Guo1,b , Ying Zeng1,c, Yuanbo Liu2,3,d and Juan Zhu1 1 College of Materials and Chemistry& Chemical Engineering, Chengdu University of Technology, Chengdu 610059, P.
Keywords: Solid state shear milling, Polypropylene, Wood flour, WPC,Structure and performances Abstract.
In this paper, solid state shear milling method was successfully employed to prepare polypropylene/wood flour composites (WPC) and their structure and performances were investigated.
Optimization of the filler properties, structure and interfacial interaction may improve the mechanical properties, thermal and dimensional stability of such composites.
Mechanochemistry, as the combination of mechanics and chemistry, is the subject of stress induced chemical reactions, including mechanoactivation, mechanoinitiation and mechanosynthesis [8].

An overview is given of the application of this approach to highly ordered intermetallic compounds having the L12 (Cu3Au) crystal structure.
Collins, Defect and Diffusion Forum 289-292 (2009) p. 725. ] of L12 structure.
L12 structure.
To explain this behavior, we consider the atomic size and metal chemistry of impurities in the phases.
Such metal chemistry effects can be expected to be much smaller in In3(La1-xPrx) because the valences of La and Pr are identical.

Crystal structure of Hf2GaSb3 Iryna Tokaychuk1,a, Yaroslav Tokaychuk1,a and Roman Gladyshevskii1,b 1Department of Inorganic Chemistry, Ivan Franko National University of Lviv, Kyryla i Mefodiya St. 6, 79005 Lviv, Ukraine atokaychuk@mail.lviv.ua, broman.gladyshevskii@franko.lviv.ua Keywords: hafnium, gallium, antimony, X-ray powder diffraction, crystal structure Abstract.
In such a way the symmetry of the structure becomes noncentrosymmetric and the structure type Zr2CuSb3 is realized.
Its structure belongs to the structure type Zr2CuSb3, which is a ternary ordered derivative of the structure type UAs2, in which the high-temperature modification of HfSb2 crystallizes.
Fruchart, Crystal structure of Zr2CuSb3 and related compounds, J.
Parthé, STRUCTURE TIDY - a computer program to standardize crystal structure data, J.

Farhadyar2,c 1Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran 14778 92855, Iran 2Department of Chemistry, Varamin-Pishva Branch, Islamic Azad University, Varamin 1983963113, Iran am.s.sadjadi@gmail.com (correspondingauthor), bsharafi@yahoo.com,cnfarhadyar@gmail.com Keywords: Inverse micelle; Surface modification; Superparamagnetism; Magnetic particles.
The structure, morphology, and magnetic properties of the products were characterized by X-ray powder diffraction (XRD), Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM) at room temperature.
All the diffraction peaks observed at (220), (311), (400), (422), (511), (440)) in this Fig. 1(a,b) were consistent with those of standard XRD pattern of a Fe3O4 crystal with spinal structure (JCPDS card No. 65–3107).
The results of D values, using the peak (311) planes of the spinel structures was 11 nm for uncoated and 40 nm for silica coated magnetic iron oxide.
ü X-ray diffraction pattern showed formation of a spinel structure for Fe3O4 nanoparticles.