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At room temperature, the sample had a tetragonal structure with space group I4/mmm, according to the X-ray diffraction analysis.
Garnet-type structures have a lot of outstanding properties with 3-dimensional frameworks that enable the movement of the active species [2].
Researchers nowadays focus on the study of garnet-type structure Li7La3Zr2O12 since it exhibits polymorph structure [3].
The XRD pattern of Li7La3Ce2O12 exhibits tetragonal structure with space group I4/mmm.
Amthauer “Synthesis, Crystal Chemistry, and Electrochemical Properties of Li7-2xLa3Zr2-xMoxO12 (x = 0.1-0.4): Stabilization of the Cubic Garnet Polymorph via Substitution of Zr4+ by Mo6+,” Inorg.

Effects of PEG on Properties of SrAl2O4:Eu2+, Dy3+ Long Afterglow Phosphors Prepared by Combustion Synthesis Xiaoxia Liu2, b, Min Liang1, a, Guihua Peng1, a and Zhenhua Liang1, a 1State Key Laboratory Cultivation Base for the Chemistry and Molecular Engineering of Medicinal Resources（Ministry of Science and Technology of China）, School of Chemistry & Chemical Engineering of Guangxi Normal University, Guilin, Guangxi, 541004,China 2College of Arts & Science of Jianghan University, Wuhan, Hubei, 430056, China apengguihua164@163.com, bxiaxiaoliu@126.com Keywords: PEG; Long afterglow; SrAl2O4; Combustion synthesis Abstract.
The main phase of the combustion products is SrAl2O4 with monoclinic crystal structure and the impurity phase content is reduced by adding PEG.
By comparing with the standard JCPDS cards, it can be seen that the main phase is SrAl2O4 with monoclinic crystal structure and there is a small amount of impurity phase SrAl4O7 in all four samples.

The structures of target compounds were characterized on the basis of spectral (FT-IR, 1H NMR, and MS).
The chemistry of these cycloaddition reactions can be rationalized based upon the resonance structure of the imino-1,2,4-dithiazole, in which the exocyclic nitrogen has a negative charge and a ring sulfur atom has a positive charge. 1,2,3-Dithiazoles are important compounds among the five membered heterocycles containing nitrogen and sulfur atoms due to their biological activity and interesting chemical transformations [8,9].
Sammes, in: Comprehensive heterocyclic chemistry, edited by A.R.

Differences of nano-structure between waxy and normal starch PENG Liu1, a, CAIQIN Gu1, b, QINGZHU Zeng1, c, HAOHUAI Liu1,d 1 School of Chemistry and Chemical Engineering, Guangzhou University, Guangzhou 510006, China aliu_peng@gzhu.edu.cn; b gcq86@163.com; c qingzhuzeng@yahoo.com.cn; dhuaihuai99@163.com Keywords: nano-structure; AFM; starch Abstract.
The methods to study its structure mainly came from two ways, using instruments to observe structure directly, and detecting properties to reflect structure indirectly [1].
Results and Discussion Starch Nano-structure.
Starch nano-structure is the sub-structure for granule, and is the juncture for granular structure and molecular structure.
Fig. 1 The nano-structure of WWS by AFM Fig. 2 The nano-structure of NWS by AFM Fig. 3 The nano-structure of WMS by AFM Fig. 4 The nano-structure of NMS by AFM The viscosity of starch solutions.

Synthesis and Crystal Structure of Tridodecylammonium 3, 5-Dinitro-1, 2, 4-1H-triazolate (TDADNT) Tao Zhang1,a, Long Liu2,b, Yanqiang Zhang2,c, Zengxi Li1,d 1 School of Chemistry and Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China 2 Beijing Key Laboratory of Ionic Liquids Clean Process, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China atzhang@home.ipe.ac.cn, blliu@home.ipe.ac.cn, cyqzhang@home.ipe.ac.cn, dzxli@home.ipe.ac.cn Keywords: Tridodecylammonium 3,5-dinitro-1,2,4-1H-triazolate, Crystal structure, Thermal decomposition.
The crystal structure analysis was performed on a Bruker CCD X-ray diffractometer.
The structure was solved and refined with the SHELXTL software package [9].
The structure of TDADNT was supported by 1H and 13C NMR, IR, and Raman spectra.
The structure of TDADNT is shown in Fig. 2.

The computations were carried out on a supercomputer using the ab initio quantum chemistry package, Gaussian 09 [18].
The B3LYP/3-21G optimized geometries of the three singlet structures are presented in Fig. 1 showing the newly formed Al-C bonds.
Among the three structures, the one with the 7-memebered ring (Figure 1(b)) is the most stable.
Therefore the sp2 carbon atoms would be heavily distorted from the planar structure.
Ito: Journal of Physical Chemistry A Vol. 106 (2002), p. 649

It uses the chalcogenides with reversible structure as phase change material, and uses rapid reversible phase occurring phase change material excitation energy to store data.
Ge2Sb2Te5, in the structures of amorphous, FCC and HCP shows the characteristics of semiconductor, semi-metal and metal.
But when the doping and annealing temperatures are high, phase does not occur, FCC phase transition to the six party structure can also be inhibited, and the film structure is FCC structure; doped N and O bonded with Ge, Ge3N4 and GeO2 were generated.
We need further study on accelerating the crystallization rate of segmentation, the structure stability, phase change material resistance stability, and so on.
Zen Xenia, professor of chemistry at University of Tokyo in Japan published an article in "nature & chemistry" and points out that, this substance is a new crystal form of titania, at room temperature, when it is subjected to light stimulation, it can be transformed from the metallic state conductivity of pure black into brown semiconductor body.

Asphalt as a mixture with multiple components and complex structure, its thermal stability not only depends on the chemical components of asphalt but also closely related to its colloid structure.
ELEMENTAL ANALYSIS To asphalt which is a mixture with multiple components and complex structure, the elemental composition is a very important parameter.
Then the ring structure, especially the aromatic ring structure was the most. the content of 2# was in between.
:Petroleum asphaltenes: chemistry and composition.
Advances in chemistry Series No 170, Paper9 [3] Shen Jin-an, Li Fupu.

The reaction scheme is the following: Structure I or II predominates in the obtained polymers [6].
However, CP double bond is participated in the reaction can form normal structures III or IV.
Only structures I and IV form in solvent methylene chloride [6].
Grubbs, Polynorbornene and poly(exo-dicyclopentadiene) with aldehyde end groups, Macromolecule Chemistry, Rapid Commun, 1989, V. 10, № 2, pp. 73–78
Fontanille, Linear polymerization of endo-dicyclopentadiene inintiated by metathesis catalysts, Macromolecule Chemistry, 1987, V. 188, № 11, pp. 2585–2595

Structure Instability of Metallic Glass Zr50Cu40Al10 in Low Temperature T.
Inoue 2 １ Department of Materials Science & Chemistry, Graduate School of Engineering, University of Hyogo, 2167 Shosha, Himeji, Hyogo 671-2201, Japan 2Institute for Materials Research, Tohoku University, Sendai, Miyagi 980-8577, Japan aemail, fukami@eng.u-hyogo.ac.jp Keywords: Metallic glass, Mechanical resonance, Sound wave velocity, Structure instability, Electrical resistivity Abstract.
These suggest a kind of structure instability of Zr50Cu40Al10 in low temperature region.
At first, the measurement system was checked using a single crystalline bismuth, which has no structure instability in low temperature region.
Any way, the abnormal temperature dependence of fm(T) and ρ(T) suggests a kind of structure change.