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Online since: May 2016
Authors: Kazuyoshi Uematsu, Kenji Toda, Mineo Sato, Tadashi Ishigaki, Dae Ho Yoon, Ayano Toda, Takuya Hasegawa, Mizuki Watanabe, Tatsuro Kaneko, Atsushi Itadani, Junko Koide, Masako Toda, Yoshiaki Kudo, Takaki Masaki, Sun Woog Kim
Novel Soft Chemical Synthesis Methods of Ceramic Materials Kenji Toda1,a*, Sun Woog Kim1, Takuya Hasegawa1, Mizuki Watanabe1, Tatsuro Kaneko1, Ayano Toda1, Atsushi Itadani1, Mineo Sato2, Kazuyoshi Uematsu2, Tadashi Ishigaki1, Junko Koide3, Masako Toda3, Yoshiaki Kudo3, Takaki Masaki4 and Dae Ho Yoon4,b* 1Graduate School of Science and Technology, Niigata University, Niigata 950-2181, Japan 2Department of Chemistry and Chemical Engineering, Niigata University, Niigata 950-2181, Japan 3N-Luminescence Corporation, 8867-3 Ikarashi 2-nocho, Niigata 950-2101, Japan 4 School of Advanced Materials Science and Engineering, Sungkyunkwan University, Kyunggi-do 400-746, Republic of Korea aktoda@eng.niigata-u.ac.jp, bdhyoon@skku.edu Keywords: Solid State Reaction, Soft Chemistry, Ionic Diffusion, Water.
We report novel soft chemical synthesis method, solid hydratethermal reaction (SHR) method as a new soft chemistry.
The standard XRD pattern of YVO4 obtained from the inorganic crystal structure database is also included as a reference.
Main XRD peaks of samples were good indexed to that of the YVO4 structure.
Online since: August 2009
Authors: Tian Shu Peng, Hong Ju, Yan Li
In the present paper, inhibition effect of acridine on corrosion of hot dipped Zn and Zn-Al alloy coatings on steels in diluted hydrochloric acid was investigated using weight loss test, electrochemical measurement, and quantum chemistry analysis.
Quantum chemistry calculation results indicated that acridine possesses planar structure with a number of active centers, and showed a good ability of electron exchange with the coating surface. 1.
The negative and large values of ∆G 0 , indicating the spontaneous process of chemisorption [13, 14]. 3.3 Quantum chemistry calculation Acridine possesses a nearly planar structure, and it could be in favor of the largest contact area between acridine and coating surface if acridine absorbed on the coating surface at nearly 0 o contact angle.
Bearing a planar structure with several active centers around nitrogen atom and the aromatic cyclic, acridine might form a chemical adsorption layer on the coating surface by a planer fashion.
The excellent inhibitive action of acridine for corrosion of hot dip coatings was attributed to blocking of the electrode surface by chemisorption through the active centers contained in its structure.
Online since: February 2014
Authors: Ri Hong Tan
Introduction Supramolecular chemistry is the chemistry of molecular aggregates between forces link up to form molecules and molecular research, is defined as beyond the scope of the molecule, the chemical is on the chemical interactions between specific molecules, based on molecular recognition forming the main - object structure is a basic feature of supramolecular systems.
In fact the scope of supramolecular chemistry has been limited to areas of chemistry, but with the biology, physics, life sciences, materials, information, and environmental disciplines knot together to form a supramolecular science [1].
Crown ether cyclodextrin chemistry together chemistry and supramolecular chemistry has opened up this emerging field of research, they represent the first generation and second generation supramolecular host compounds.
This new class of calixarene macrocycles hole has a unique structure, known as the crown following the third generation of supramolecular cyclodextrin later, in the field of supramolecular chemistry has achieved certain results.
As a new generation of calixarene macrocycles , has a unique ability to identify the molecular structure and height adjustability .
Online since: January 2014
Authors: Hui Juan Yue, Kai Qi Ye, Qing Liu, Quan Hua Fan, Xiao Ping Zhang, Hai Xing Liu, Huan Mei Guo
China 2College of Chemistry, State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012, P.R.
China 3College of Chemistry, State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012, P.R.
The crystal data and structure refinement is shown in Table 1.
ZR2010BL025), Open Project of State Key Laboratory of Supramolecular Structure and Materials (No. sklssm201323)(Jilin University), State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (No. 2011-13)(Jilin University).
Mirochnik, Journal of Structural Chemistry, 2010, 51(1), 194-197
Online since: December 2014
Authors: Peng Tian, Mo Yang, Jing Zeng
UV-Spectrum analysis of N-Octyl Pyridine Tetrafluoroborate in Ethanol Mo Yang, Peng Tian*, Jing Zeng College of Chemistry and Life Science, Shenyang Normal University, Shenyang 110034, China email: tianpenglnu@sina.com Keywords: N-octyl-pyridine tetrafluoroborate, ethanol, UV–spectrum analysis Abstract: Ionic liquids have been attracting extraordinary attention for their unique properties, such as high ionic conductivity, negligible vapor pressure, and high thermal and electrochemical stability, which have made their varied applications in organic chemistry, material science, chemical engineering, physical chemistry, analytical chemistry and biotechnology.
Introduction Ionic liquids have been attracting extraordinary attention for their unique properties, such as high ionic conductivity, negligible vapor pressure, and high thermal and electrochemical stability, which have made their varied applications in organic chemistry[1–6], material science[7], chemical engineering [8], physical chemistry [9], analytical chemistry [10] and biotechnology.
To date, a large number of ionic liquids have been reported with diverse structures and properties.
Air and water stable ionic liquids in physical chemistry.
Ionic liquids in analytical chemistry.
Online since: April 2015
Authors: Rui Ting Xue, Si Rong Yu, Wei Song Sun
Quantum chemistry calculation of the complex was carried out by DFT method at B3LYP level.
Results and Discussion X-ray structure of the complex The molecular structure of the complex is shown in Fig.1.
Zhong, Journal of Fluorine Chemistry 125 (2004) 1287
Zhu, Journal a) of Organometallic Chemistry 694 (2009) 2883
Zheng, Journal of Fluorine Chemistry 127 (2006) 63
Online since: August 2010
Authors: Guo Zhong Cao, Saghar Sepehri, Betzaida Batalla García, Qi Feng Zhang
In this work the effects of surface chemistry on dehydrogenation kinetics of carbon cryogel (CC) - ammonia borane nanocomposites have been studied.
Table 2 summarizes the detailed porous structure parameters of the samples.
These results reveal more uniform and improved mesoporous structure of BCC as compared to CC, BNCC, and NCC.
Moreover, presence of B in BNCC has improved its mesoporous structure as compared to CC and NCC.
The study demonstrated that the dehydrogenation properties of hydrides can be readily tuned by altering the nanoporous structure and/or the surface chemistry of CC scaffolds.
Online since: April 2013
Authors: N. Valiev, Rafail Apakashev
Experiments at the Department of Chemistry, Ural State Mining University, confirm that the increase of ratio causes a decrease of the thickness of plates in the banded structure of the metal that was influenced by directional flow.
Eitel: The Physical Chemistry of the silicates (Inostrannaya literatura, Russia, Мoscow 1962)
Petrov: Crystallography and crystal chemistry.
Esin: Physical chemistry. 1958, 8, p. 1874-1876
Geld: The Physical Chemistry of pyrometallurgical processes.
Online since: January 2013
Authors: Hai Xing Liu, Huan Mei Guo, Guang Zeng, Zhang Xue Yu, Qing Hua Zhang
Crystal structure of bi(1,10-phenanthroline)- copper-Cl chlorine hydrate, [CuCl(C12H8N2)2]Cl0.5(H2O)5.5 Hai-Xing Liu1, a, Huan-Mei Guo1, b, Guang Zeng2, c, Qing-Hua Zhang1, d, Zhang-Xue Yu1, e 1 Chemistry & Chemical and Environmental Engineering College, Weifang University, Weifang 261061, P.R.
China 2 State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry, Jilin University, Changchun 130012, P.R.
I now report the crystal structure of the title complex.
ZR2010BL025),State Key Laboratory of Inorganic Synthesis and Preparative Chemistry (Jilin University)(No. 2011-13), MOE Key Laboratory of Analytical Chemistry for Life Science (Nanjing University)(No.
European journal of inorganic chemistry, 2007, 17, 2465-2471 [3] Ivan I. 
Online since: November 2007
Authors: Didier Louis, Yin Xu, Nicolas Possémé, Thibaut David, Han Xu, Vlad Tarasov
Study of ashing chemistries in a conventional asher with dual plasma sources FT-IR analyses on wafers coated with blanket spin-on MSQ film were used to compare different ashing chemistries.
Process E was a high temperature, radical-rich reducing chemistry.
Study of ashing chemistries in a directional ashing system FT-IR analysis was done on wafers deposited with blanket low-k film exposed to various ashing chemistries in a directional ashing chamber with independent wafer bias control.
Process E was a high temperature, radicalrich reducing chemistry.
Overall, processes with reducing chemistries resulted in less film modifications.