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Online since: December 2013
Authors: Dao Wu Wang, Xin Xia Feng, Long Zhang, Xiao Long Li, Jin Long Zheng
The structure was confirmed by 1H-NMR IR and ESI-MS.
The structures were confirmed by 1H-NMR and ESI-MS.
The structure was confirmed by 1H-NMR,IR and ESI-MS.
Chinese Journal of Synthetic Chemistry,2011,19(3):406-408(In Chinese)
Structure-activity relationship of isoform selective inhibitors of Rac1/1b GTPase nucleotide binding[J].Bioorganic & Medicinal Chemistry Letters, 2009,(19):5594-5598
The structures were confirmed by 1H-NMR and ESI-MS.
The structure was confirmed by 1H-NMR,IR and ESI-MS.
Chinese Journal of Synthetic Chemistry,2011,19(3):406-408(In Chinese)
Structure-activity relationship of isoform selective inhibitors of Rac1/1b GTPase nucleotide binding[J].Bioorganic & Medicinal Chemistry Letters, 2009,(19):5594-5598
Online since: January 2013
Authors: Ming Chen, Dong Bo Zhao, Fei Meng Zhang, Ze Cheng Guo
Tribology and Self-repairing Nature of RE Nanophase Composite Material
Guo Ze-chenga, Chen Ming, Zhao Dong-bo, Zhang Fei-meng
Hefei New Star Applied Technology Research Institute, Hefei, AnHui Province, P.R.China
a15005603968@126.com
Keywords: RE; Nanophase composite material; Frictional wear; Self-repair
Abstract.RE nanophase composite material between the grain size 30nm and 100nm are prepared by the method of mechano-chemistry,in which the material’s adsorptive capacity to metal base is checked,and the nature of anti-friction as well as self-repairing effectiveness to the surface of abrasion is tested by four-ball friction wear testing machine.
The results show that RE nanophase composite material prepared by the method of mechano-chemistry has a good adsorptive capacity to metal base,and the wear surface can be covered and repaired under dynamic condition;RE nanophase composite material used as anti-friction material is test and verified.
Because of the rare earth elements and their compounds with six crystal structure ( some with complete layer Cleavage ), the rare earth is as a lubricant and lubricant additive as possible.
b) RE nanophase composite materials can produce coordination chemistry reaction with metal matrix and a variety of elements in surrounding environment under the condition of high pressure and high speed.
The results show that RE nanophase composite material prepared by the method of mechano-chemistry has a good adsorptive capacity to metal base,and the wear surface can be covered and repaired under dynamic condition;RE nanophase composite material used as anti-friction material is test and verified.
Because of the rare earth elements and their compounds with six crystal structure ( some with complete layer Cleavage ), the rare earth is as a lubricant and lubricant additive as possible.
b) RE nanophase composite materials can produce coordination chemistry reaction with metal matrix and a variety of elements in surrounding environment under the condition of high pressure and high speed.
Online since: January 2013
Authors: Rong Shao, Yun Shan Bai, Lu De Lu, Jian Chun Bao
Keywords: Soft chemistry; NdxAl2-xZr2O7 ; Nanocrystalline; Pyrochlore; Fluorescence activity.
The pyrochlore structure of Nd1.9Al0.1Zr2O7 can be confirmed through IR and Raman.
It can be seen that doping does not cause visible damage to the pyrochlore structure and only caused a change of the fine structure in pyrochlore.
Small changes in crystal structure will cause changes in the Raman spectra.
This is because, in nano-scale, while the Al-dopping does not cause damage to pyrochlore structure, it caused changes in the fine structure of pyrochlore.
The pyrochlore structure of Nd1.9Al0.1Zr2O7 can be confirmed through IR and Raman.
It can be seen that doping does not cause visible damage to the pyrochlore structure and only caused a change of the fine structure in pyrochlore.
Small changes in crystal structure will cause changes in the Raman spectra.
This is because, in nano-scale, while the Al-dopping does not cause damage to pyrochlore structure, it caused changes in the fine structure of pyrochlore.
Online since: July 2020
Authors: Dalal K. Thbayh, Tahseen A. Alaridhee, Rawnaq A. Talib, Dalal N. Ahilfi, Kareema M. Ziadan
“"Structure and Electrical Properties of ZnO Nanoparticles Blend with POT-DBSA
Dalal K.
MacDiarmid, The Journal of Physical Chemistry, 93 (1989) 495-499
, Journal of Industrial and Engineering Chemistry 19,, (2013) 1226-1233
Chabukswar., Materials Chemistry and Physics 73, no. 1 (2002) 106-110
Khalid, Journal of Industrial and Engineering Chemistry, 19 (2013) 1226-1233
MacDiarmid, The Journal of Physical Chemistry, 93 (1989) 495-499
, Journal of Industrial and Engineering Chemistry 19,, (2013) 1226-1233
Chabukswar., Materials Chemistry and Physics 73, no. 1 (2002) 106-110
Khalid, Journal of Industrial and Engineering Chemistry, 19 (2013) 1226-1233
Online since: June 2007
Authors: Xia Ting Feng, Wu Xiu Ding, Bing Rui Chen
How to establish a multifactor characteristic constitutive model which
can reflect different chemical environments is the key problem to study the coupling corrosion effect
of stress and chemistry of rock.
In this paper, a Self-adaptive recognition method for damage constitutive model is proposed, which is based on evolutionary neural network and allows for coupled erosive effects of chemistry and stress.
Experiments 2.1 Testing Materials The identification work of mineral composition has been made on limestone specimens with idiomorphic crystal grain structure and biologic dross structure.
It is indicated that the neural network structure of 10-36-30-1 has lower average relative error (table 4) and better prediction result(figure 3), whereas structure of 10-17-21-1 has higher average relative error (table 4) and baddish prediction result(figure 4).
(5) The nonlinear neural network constitutive model of rock under chemical corrosion is set up which allows for coupled erosive effects of chemistry and stress.
In this paper, a Self-adaptive recognition method for damage constitutive model is proposed, which is based on evolutionary neural network and allows for coupled erosive effects of chemistry and stress.
Experiments 2.1 Testing Materials The identification work of mineral composition has been made on limestone specimens with idiomorphic crystal grain structure and biologic dross structure.
It is indicated that the neural network structure of 10-36-30-1 has lower average relative error (table 4) and better prediction result(figure 3), whereas structure of 10-17-21-1 has higher average relative error (table 4) and baddish prediction result(figure 4).
(5) The nonlinear neural network constitutive model of rock under chemical corrosion is set up which allows for coupled erosive effects of chemistry and stress.
Online since: May 2011
Authors: Qin Jiang, Xing You Xu, Xi Lan Hu
Synthesis, Crystal structure and antimicrobial activity of a mixed-ligand copper (II) complex [Cu(pht)2 (phen)H2O]
Xi-Lan Hu 1, a, Qin Jiang 1,b Xing-You Xu 2,c
1 Research Section of coordination chemistry, Huaihai institute of technology, Lianyungang, china
2 Huaiyin Institute of Technology, huai’an, china
ahuxilan@hhit.edu.cn, bjq6898741@163.com, cxuxy@hyit.edu.cn
Keywords: copper(II) complex; crystal structure; antimicrobial activity
Abstract.
Introduction Recent developments in coordination chemistry have produced numerous copper (II) complexes with well-defined solid-state structures and versatile bonding modes [1-6].
Among them those derivatives from imidazoles or polyamines are attracting much interest due to their potential bioactivity and rich structural chemistry.
X-Ray Crystal Structure Determination A single crystal of the complex was mounted on a glass fiber.
The X-ray diffraction analysis shows that the complex has a mononuclear structure.
Introduction Recent developments in coordination chemistry have produced numerous copper (II) complexes with well-defined solid-state structures and versatile bonding modes [1-6].
Among them those derivatives from imidazoles or polyamines are attracting much interest due to their potential bioactivity and rich structural chemistry.
X-Ray Crystal Structure Determination A single crystal of the complex was mounted on a glass fiber.
The X-ray diffraction analysis shows that the complex has a mononuclear structure.
Online since: January 2015
Authors: Wojciech Simka, Daria Nieszporek, Karolina Matuszek, Anna Chrobok, Artur Maciej
Electrodeposition of zinc coatings from ionic liquid
Daria Nieszporek1,a, Wojciech Simka1,b, Karolina Matuszek2,c,
Anna Chrobok2,d and Artur Maciej1,e*,
1Chair of Inorganic Chemistry, Analytical Chemistry and Electrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 6, 44-100 Gliwice, Poland
2 Chair of Organic Technology and Petrochemistry, Faculty of Chemistry, Silesian University of Technology, Krzywoustego 4, 44-100 Gliwice
adaria11041991@op.pl, bwojciech.simka@polsl.pl, ckarolina.matuszek@polsl.pl, danna.chrobok@polsl.pl, e*artur.maciej@polsl.pl
Keywords: zinc coating; electrodeposition; 1-butyl-3-methylimidazolium chloride ionic liquid.
Many different structures could occurred on the surface of an one type of coating.
The type of bath, current density and temperature had an impact on the structure.
Freemantle, An introduction to ionic liquids, The Royal Society of Chemistry Publishing, Cambridge, 2010
Patel, Ionic liquids applications in green chemistry: copper and zinc catalysis, Ionic Liquids Organ.
Many different structures could occurred on the surface of an one type of coating.
The type of bath, current density and temperature had an impact on the structure.
Freemantle, An introduction to ionic liquids, The Royal Society of Chemistry Publishing, Cambridge, 2010
Patel, Ionic liquids applications in green chemistry: copper and zinc catalysis, Ionic Liquids Organ.
Online since: October 2013
Authors: Chen Lin, Xue Qing Hu, Liang Xiao Tang, Xun Wei Liu
Chemistry, Vol. 3 (2003), p. 184-191
Journal of Natural Gas Chemistry, Vol. 16 (2007), p. 217-226
The Journal of Physical Chemistry Letters, Vol. 1 (1) (2009), p. 48-53
Industrial & engineering chemistry research, Vol. 45 (8) (2006), p. 2558-2568
Chemistry of Materials, 19 (18) (2007), p. 4396-4404
Journal of Natural Gas Chemistry, Vol. 16 (2007), p. 217-226
The Journal of Physical Chemistry Letters, Vol. 1 (1) (2009), p. 48-53
Industrial & engineering chemistry research, Vol. 45 (8) (2006), p. 2558-2568
Chemistry of Materials, 19 (18) (2007), p. 4396-4404
Online since: October 2013
Authors: Yu Wang, Jing Hai Zhou, Yao Wu, Yong Jun Liu
Recent years, many infrastructures, say building structures and bridge structures, have suffered from multi-hazards.
Structures under Earthquakes and Post-earthquake Fires.
The Chemistry Building of University of Concepcion, after massive Chile Earthquake, February 27, 2010, was damaged by post-earthquake fire (see Fig. 4).
Fortunately, the Chemistry Building didn’t collapse in the earthquake and post-EQ fire.
Fig. 3 Elementary school, 2011,Japan Fig. 4 Chemistry Building of UC, Chile Structures under Explosions and Following Fires.
Structures under Earthquakes and Post-earthquake Fires.
The Chemistry Building of University of Concepcion, after massive Chile Earthquake, February 27, 2010, was damaged by post-earthquake fire (see Fig. 4).
Fortunately, the Chemistry Building didn’t collapse in the earthquake and post-EQ fire.
Fig. 3 Elementary school, 2011,Japan Fig. 4 Chemistry Building of UC, Chile Structures under Explosions and Following Fires.