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Hydrogenation and corrosion properties of LaNi4.5Co0.5-based alloy doped with 1.7 at% Sn Martyna Dymek1,a*, Henryk Bala2,b, Henryk Drulis3,c and Alicja Hackemer4,d 1,2Czestochowa University of Technology, Department of Chemistry, al.
The negative electrodes of the NiMH batteries (M = mostly RET5 type compound, with hexagonal CaCu5-type structure; RE rare earth- and T- transition metal(s) elements) are able to absorb up to 1.5 mass % of hydrogen but are sensible to cycling (periodical crystal lattice expansion/contraction) which gives rise to material mechanical deterioration and capacity fade.
The XDR examinations revealed predominantly CaCu5-type structure of the Sn-doped alloy, with slightly increased unit cell volume (ΔV/V ≈ 0.3%) compared to the precursor.
Wang, Structure and electrochemical properties of LaCo13-xNix compounds, J.

X-ray Absorption Fine Structure (XAFS) is a widely-used experimental technology which is growing up with the development of synchrotron radiation.
It is also a very important experimental method for researchers to study the material structure, biology, chemistry, environmental science and technology, geological science etc [2] [3] [4].
Introduction to XAFS: a practical guide to X-ray absorption fine structure spectroscopy[M].

Since the click chemistry was realized independently by Medal and the Sharpless laborataries[10], it has gained considerable attention in the field of calixarene.
Fig. 6 The structure of calixarene 6 Fig. 7 The binding mode of 7 with Zn2+ Fig. 8 The structure of calixarene 8 Fig. 9 The structure of calixarene 9 Summary It is quite evident from the literature that the functional calixarenes by clicking reaction are good candidates to construct fluorescent chemosensor for the selective recognition of metal ions species as concluded in each subsection of this review.

Synthesis, Properties and Application in Optical Memory of A Photochromic Diarylethene Bearing pyrimidine and pyridine ring Shuhong Jing, Shouzhi Pu*, Shiqiang Cui Jiangxi Key Laboratory of Organic Chemistry Jiangxi Science and Technology Normal University Nanchang 330013, P.
The structure of 1a was characterized by 1H NMR.
The structure of 1a was characterized by 1H NMR. 1H NMR (400 MHz, CDCl3, ppm): δ 2.08 (s, 3H, -CH3), 3.75 (s, 3H, -CH3), 4.01 (s, 3H, -CH3), 7.23 (s, 1H, thiophene-H), 7.26 (t, 1H, pyridine-H),7.72 (d, 1H, pyridine-H), 8.33 (t, 1H, pyridine-H), 8.55 (s, 1H, pyrimidine-H), 8.82(s, 1H, pyridine-H).
Irie, Photochromism of diarylethene single crystals: crystal structures and photochromic performance, Chem.

The study of Brik [9, 10] already investigated fundamental properties of the basalt fiber as a reinforcing steel replacement in the concrete structures.
The SEM micrographs are used to investigate the surface morphologies, and FTIR tests to find out the chemical structure.
Carbon nanotube (Carbon nanotube) was supplied by Chinese Academy of Sciences, Chengdu Organic Chemistry Co., Ltd. 2.2 Preparation of PTNSDPBASALT Carbon nanotube particles were deposited on the surface of Basalt filaments by sol-gel dip-coating technique.
It is clear that all of the reactions are happened at the time of treatment happened. 3.2 Fourier transform infrared (FT-IR) spectroscopy In order to investigate the chemical structure of basalt fiber with different treatment, the FTIR test was done, the spectra is showed in Fig.2.

Development of gas-solid phase hybrid synthesis method of single crystal Ba2SiO4:Eu2+ Tatsuya Sakamoto1, Kazuyoshi Uematsu2, Tadashi Ishigaki3 Kenji Toda1,3 and Mineo Sato2,3 1 Graduate School of Science and Technology, Niigata University, Niigata 950-2181, japan 2 Department of Chemistry and Chemical Engineering, Niigata University, Niigata 950-2181, japan 3 Center for Transdisciplinary Research, Niigata University, Niigata 950-2181, japan ktoda@eng.niigata-u.ac.jp Keywords: gas-solid phase hybrid synthesis method, single crystal, phosphor Abstract.
In this paper, the object of the present work was to investigate the structure analysis and the fluorescent properties of Ba2SiO4:Eu2+ single crystal phosphor on Ba - Sc - Al - Eu - O substrate.
The information was good agreement with the ICSD (Inorganic Crystal Structure Database) data (No.28476) for the standard Ba2SiO4 reference [8].
Table 1 Crystal data and structure refinement for synthsized sample and reference data.

Polyamide-imides have alternative arrangement of an amide and imide structures.
Trimellitic anhydride (TMA) (from Aladdin Chemistry Co, Ltd., Shanghai), N,N-dimethyl formamide (DMF) (AR grade), Triphenyl phosphate (TPP) (from Kelong Chemical Reagent Co., Chengdu) and p-aminobenzoic acid (from Kelong Chemical Reagent Co., Chengdu) were used as received.
Structure of the imide dicarboxylic acid was characterized by common spectroscopic methods.
P--M and P--N containing monoimide units exhibited higher glass-transition temperatures than the others polymers as they had simple molecular chain structure and high bulk density.

Uniwersytecka 4, 40-007 Katowice, Poland 2University of Silesia, Institute of Chemistry, ul.
They revealed single-phase material with a cubic spinel structure (Fd3m).
A Rietveld refinement of the spinel structure showed an octahedral coordination of the Ga and Co ions for low and high Cr content, respectively.
Gütlich: Spin crossover in iron(II)-complexes in Structure & Bonding Volume 44 (Springer, Berlin, 1981)

Preparation and Fixation ability for Pb2+ of Geopolymeric Material based on Bayer Process Red Mud Xiang-li XIE1, Peng PENG2 , Wen-feng ZHU2 and Lin-iang WANG3,a 1 College of Chemistry and Bioengineering, Guilin University of Technology, Guilin 541004,China 2 College of Materials Science and Engineering, Guilin University of Technology, Guilin 541004, China 3 Ministry-province jointly-constructed cultivation base for state key laboratory of Processing for non-ferrous metal and featured materials, Guilin 541004, China awlinjiang@163.com Keywords: geopolymer, red mud, preparation, compressive strength, fixation Pb2+ Abstract.
Geopolymers or inorganic polymers are alumino-silicate materials which exhibit excellent physical and chemical properties, for example, high mechanical strength, low apparent porosity or nanoporosity, high Moths hardness, low thermal expansion at high temperatures, good resistance under freezing-thawing cycles, and excellent stability in acidic and alkaline environments, and a diverse range of potential applications, including precast structures and non-structural elements, concrete pavements and products, containment and immobilization of toxic, hazardous and radioactive wastes, advanced structural tooling and refractory ceramics, and fire resistant composites used in buildings, aero planes, shipbuilding, racing cars, and the nuclear power industry [9].
The granular internal structure of the materials can be clearly observed.
Compare to the geopolymer from pure metakaolin, the structure of geopolymer from metakaolin-red mud mixture is much compact at 10% to 30% red mud dosage.

The nanocrystal Cassiterite structure, with a size of a few nanometers (<6 nm), was identified by XRD, NMR and Raman measurements confirming a homogeneous dispersion of Yb3+ ions in the lattice.
Quantitative analysis. 50 mg of the powder samples treated at 600°C were mechanically stirred in a 3% solution of HNO3 to dissolve the Yb3+ not included in the Cassiterite structure.
All the samples result in a nanometric Cassiterite structure, doped with small amounts of the rare earth.
Peaks of the Cassiterite structure are visible and a minor size evolution with thermal treatment can be observed. 119Sn Solid-state NMR spectra are recorded for all samples (Fig. 3).
Soc., Dalton Trans.: Inorganic chemistry (1972-1999), (1989), p. 843 [15] D.P.