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Online since: February 2019
Authors: G.M. Kaleva, E.D. Politova, D.A. Strebkov, D.A. Belkova, N.V. Golubko, A.V. Mosunov, N.V. Sadovskaya, P.K. Panda
Karpov Institute of Physical Chemistry, Vorontsovo Pole str. 10, Moscow, Russia 2M.V.
Phase composition and structure parameters were checked at the room temperature by the X-Ray diffraction method (XRD) (DRON-3M, CuKα radiation).
Results and Discussion According to the XRD data, the samples I – IV with perovskite structure are formed at temperatures of T1=770 – 970 K.
Russian Journal of Physical Chemistry A 92 (2018) 1132–1137
Chemistry of Materials 27 (2015) 629-634
Online since: May 2012
Authors: Zhao Hua Jiang, Dong Yun Ma, Yu Guang Lv, Ying Wang, Yun Jie Zhang, Huan Yuan, Hong Liu, Yong Chang Zhu, Wei Fang
The results showed that the spectra structure characterization is consistent with that of single-crystal diffraction.
In addition,in order to determine its spatial structure, the single crystal was prepareded by solvent evaporation.
Results and discussion Structural characterization of complexes Single crystal structure analysis The molecular structure of the complex as shown in Fig.1 is asymmetrical and mononuclear composed of one Eu3+, three TTA anions and two TPPO ligands which surround center Eu3+ alternatively in different oritention because of steric effect.
The complex molecules packed into layer structure in three dimensions with thiophene rings are parallel to each other among adjacent complex molecules.
Fig.1 Molecular structure of the complex IR spectra analysis IR spectra for the complex and free ligands are shown in fig.2.
Online since: July 2011
Authors: Zhen Jie Wang, Yong Qiang Niu, Jun Lin Du, Nai Xin Xu, Zhu Wu
A ternary Li-Mg-B alloy (64%Li, 4%Mg and 32%B, all compositions are reported as weight percent in this paper) foil was prepared and its phase structure and discharge behavior were investigated.
Results and discussion Phase structures of the Li-Mg-B alloy.
In other words, it is quite safe for the chemistry combinations designed.
Though violent chemical reactions may occur at elevated temperatures due to breakage of Li2O films, the thermal analysis results insure that the chemistry can work safely at 150-300℃.
There is no considerable voltage plateau found at 150℃, the reason for this phenomenon results from the limit of kinetics of this chemistry at lower temperature close to the melting point of eutectics.
Online since: April 2016
Authors: Yu Jiao, Shu Hong Xie, Guang Chao Wang, Feng Rong Li
In order to adsorb sufficient dye molecules, a mesoporous ZnO nanocrystalline structure is essential for photoanode.
The aggregates are porous structure with micron meter size, and particle distribution is inhomogeneous.
Lin: Chemistry of Materials, Vol. 22 (2010) No.2, p.579
Grätzel: Nature chemistry, Vol. 6 (2014) No.3, p.242
Lim: Journal of Solid State Chemistry, Vol. 184 (2011) No.2, p.273
Online since: December 2010
Authors: A. Ustinov, I. Lukiyanchuk, P. Kharitonskii, A. Frolov, V. Morozova, I. Tkachenko, M. Adigamova, Vladimir S. Rudnev
Adigamova1 1Institute of Chemistry, Far East Branch, Russian Academy of Sciences, Vladivostok, 690022, Russia ; 2Far East State University, ul.
The coatings in both cases have an inhomogeneous structure with pores and cracks at the surface.
Sergienko, Doklady Physical Chemistry, 428, 189 (2009)
Morozova, Protection of Metals and Physical Chemistry of Surfaces, 46, 1 (2010)
Tret’yakov, Doklady Chemistry, 396, 132 (2004)
Online since: April 2005
Authors: Daniel A. Koos, Julia Svirchevski, Daniel J. Vitkavage, David G. Hansen, Karen A. Reinhardt, Frank Huang, Marie Mitchel, Guang Ying Zhang
The cleaner is made compatible with virtually any chemistry by a simple modification of the coating on the transducer.
Potential damage to interconnect structures due to the acoustic energy is less of a concern for damascene type structures compared to front end of line applications.
Using a similar type of chemistry the surface roughness values for the brush cleaned wafer and the megasonic cleaned wafer are similar.
Optimization of these parameters and dispense of cleaning fluids on the backside of the wafer enables effective cleaning of the wafer backside without damage to the structures on the front side.
In addition, the non-contact cleaning process is compatible with oxidizing agents such as ozonated chemistries.
Online since: March 2023
Authors: A.R. Maskova, G.U. Yarmuhametova, R.G. Rakhmatullina
Shershnev, Chemistry and Physics of Polymers, M .: Colossus, 2007, p. 367
Frenkel, Physics of polymers, L.: Chemistry, 1990, p. 419
Tager, Physico-chemistry of polymers, M.: Scientific world, 2007, p. 573
[20] Workshop on chemistry and physics of polymers: textbook. ed., N.I.
Kurenkov, Ed. 3rd, Moscow: Chemistry, 1995, p. 256
Online since: April 2005
Authors: A.L. Oliveira, Rui L. Reis, M.I. Santos, A.A. Pedro
The effects on the resulting apatite coatings were evaluated in terms of morphology, chemistry and structure.
The effects on the resulting apatite coatings were evaluated in terms of morphology, chemistry and structure.
The structure of this drug is presented in Fig. 1.
Chemical structure of sodium clodronate.
When incorporating high concentrations of the BP ([8] and [16]) the morphology and structure of the apatite layer seemed to be affected.
Online since: July 2016
Authors: Siddappa A. Patil, Shivaputra A. Patil, Renukadevi Patil
Catalysis is one of the hottest research topics in chemistry.
Hence, the catalytic application of MNPs supported metal complexes is one of the hottest topics in chemistry.
Many organic structures (linear or cyclic) contain these unsaturated systems.
Jagirdar, Nanocatalysis and prospects of green chemistry, Chem.
Smythe, The combinatorial synthesis of bicyclic privileged structures or privileged substructures, Chem.
Online since: October 2014
Authors: Jian Fang Dong, Bu Qin Jing, Lian Zhi Li
China 2School of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng 252059, P.
In the molecular structure, the V(IV) ion is six coordinated to form a distorted octahedral geometry.
Schiff base complexes play an important role in stereochemical models of transition metal coordination chemistry, with their easy preparation, diversity and structural variation [2].
The structure was solved by direct methods using SHELXLS-97 and refined against F2 by full matrix least squares using SHELXL-97 [13,14].
Description for the Crystal Structure The molecular structure of [VO(o-van-phe)(phen)] with the atom-numbering scheme is depicted in Fig. 1.