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The structure of above synthetic material was determined, and the influence of the rare earth ion concentration on the fluorescence intensity was also investigated.
Fig.1 Synthetic route for Eu(MAA)3Phen Results and Discussion Structure of Eu(MAA)3Phen.
Fig. 2 FTIR spectrum of Phen, Eu(MAA)3Phen and MAA The chemical structure of Eu(MAA)3Phen was characterized and certified by FT-IR spectra, as shown in Fig.2.
MAA has a strong absorption peak at around 265 nm, which belongs to MAA structure carbonyl π-π* transition.
Lanthanide-Centered Covalently Bonded Hybrids through Sulfide Linkage: Molecular Assembly, Physical Characterization, and Photoluminescence[J].Inorganic Chemistry, 2008,47(13):5601-5611

The results indicate that the as-prepared ZnO is of hexagonal wurtzite structure.
The crystal structure of ZnO was determined by XRD (D/MAX2500, Rigaku, Japan).
It demonstrates formation of crystalline zinc oxide of wurtzite hexagonal structure with crystal constants a and b as 3.250Å and c as 5.207Å.
The structure of as-prepared ZnO is hexagonal with wurtzite form, and its average size is around 43.3nm, which can be regarded as a nanoscale material.
Sharon: Materials Chemistry and Physics, Vol. 76 (2002), p. 82

Theoretical Investigation of Optoelectronics Properties of Titanium Dichalcogenides Materials TiX2 (X=S, Se, Te) Using Quantum Espresso Ibtissam GUESMI1,a*, Mohammed-Amine BOUAMMALI1,b, Siham MALKI1,c, Zakariae DARHI1,d, Allal CHALLIOUI2,e and Larbi EL FARH1,f 1Laboratory of Theoretical Physics, Particles, Modeling and Energies " LPTPME ", Department of Physics, Faculty of Sciences, Mohammed 1st, University, 60000, Oujda, Morocco. 2Laboratory of Applied Chemistry and Environment, Department of Chemistry, Faculty of Sciences, Mohammed 1st, University, 60000, Oujda, Morocco.
The structure was relaxed with Broyden-Fletcher-Goldfar-Shanno (BFGS) minimizer [23].
Figure 1: The unit cell of the 1T-TiX2 structure (right) and its Brillouin zone (left).
Umrigar, The pressure dependences of TiS 2 and TiSe 2 band structures, J.
Haas, Bulk and surface electronic structure of 1 T − TiS 2 and 1 T − TiSe 2, Phys.

The Adsorption of Zn2+ onto Chitosan-aluminum Oxide Composite Material Xuejun Ren1,a, Qinggang Gao1,b , Ming Gao 1,c 1 School of Environmental Engineering, North China University of Science and Technology, Box 206,Yanjiao Beijing 101601, China a 491109325@qq.com, b 578954270@qq.com, c gaoming@ncist.edu.cn Keywords: chitosan, chitosan-aluminum, oxide composite material, Zn2+, adsorption Abstract: Chitosan-aluminum oxide composite material was synthesized through chemical bonds with chitosan and isopropanol aluminum as raw material, whose structure was characterized by IR, TG.
Journal of agricultural and food chemistry, 52(2004)5606

Crystal Structure and Magnetic Property of Novel Ln(III)-Nitronyl Nitroxide Radical Complex Yi-Fang Hou, Zhe Fan, Shu-Tao Yang and Shu-Ping Wanga College of Chemistry & Material Science, Hebei Normal University, Shijiazhuang 050024, P.
Scheme 1 Structure of NITPhBrF radical Experimental Materials and physical measurements.
Crysal structure determination.
Construction of Nitronyl Nitroxide-Based 3d–4f Clusters: Structure and Magnetism [J].
Three lanthanide-radical complexes: Synthesis, structure and magnetic properties [J].

Its structure was characterized by gas chromatograph, and the effects of various factors on transesterification rate were studied.
Applications of sonochemistry have been developed in virtually all areas of chemistry and related chemical technologies [6].

The morphologies and structures of WO3 rods have been characterized and analyzed by XRD, SEM, TEM and SAED.
Introduction Tungsten oxides have been intensively studied for a long period of time because of their promising physical properties and applications in chemistry.

By means of x-ray diffraction and scanning electron microscopy, the morphologies and phase structures of coating were analyzed.
After heat-treating of coating, the coating structure is changed.
The precipitation of P atoms makes them aggregate on the specific crystal faces, and adapt to the Ni structure, and therefore, the common lattice relationship is formed.
Due to our small and compact structure of the coating, uniform force occurs into the coating, which prevents the coating from blistering or removal.
Stephen: Materials Chemistry and Physics.

Scanning electron microscopy (SEM) shows the typically layer structure of the material.
In the M2AX phases, every third layer is an A-group element layer[1].It is the presence of this structure that endows these solids with a unique combination of metallic and ceramic properties, such as relatively soft,easily machinability, high thermal and electrical conductivities, thermal shock resistant, and damage tolerant [2,3].
It can be explained by the crystalline structure of Ti2SC.From Fig.4(b) we can see that Ti2SC crystals grows alone c-axes.
Fom SEM observation, we could see the typically layer structure as well as crystallographic growth of Ti2SC alone c-axes.
Barsoum: Progress in Solid State Chemistry, Vol. 28 (2000), p.201

The structure and relative stereochemistry of two compounds were identified as (2S, 3R, 4E, 8E, 10E)-1-(β-D-glucopyranosyl)-3-hydroxy-2-[(R)-2′-hydroxy palmitoyl] amino-4, 8, 10-octadeca-tri-ene (1) and (2S, 3R, 4E, 8E)-1-(β-D-glucopyranosyl)-3-hydroxy -2-(palmitoyl)amino-4, 8-octadeca-di-ene (2) by means of spectroscopic (1H, 13C, and 2D NMR; MS).
These data suggested a sphingosine-type sphingolipid structure possessing hydroxy fatty acids [9] and three ethylenic groups [10, 11].
These data suggest that 1 has the similar structure with that of phalluside 4 besides the difference of the amount of (CH2)s.
On the basis of the above evidence, the structure of 1 was therefore established as (2S, 3R, 4E, 8E, 10E)- 1-(β-D-glucopyranosyl)-3-hydroxy-2-[(R)- 2′-hydroxy palmitoyl] amino-4, 8, 10-octadeca-tri-ene.
Kong: Bioorganic & Medicinal Chemistry Vol. 16 (2008), p. 2912