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Online since: September 2013
Authors: Shi Min Zhang, Rui Rui Yue, Wei Qiang Zhou, Jing Kun Xu
Electro-copolymerization of Poly(N-vinylcarbazole) and 3-Methylthiophene
ShiMin Zhang1, a, RuiRui Yue2,b, WeiQiang Zhou1,c, JingKun Xu1,*
1Jiangxi Key Laboratory of Organic Chemistry, Jiangxi Science and Technology Normal University,
Nanchang 330013, PR China
2College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou
215123, PR China
ajeckiemin@163.com, byuerui.923@163.com, czhouweiqiang911@126.com
*Corresponding author.
The structure of the copolymer was characterized by infrared spectroscopy.
On the other hand, PVK has a certain conjugated structure of molecular weight distribution and it is well-known as good blue light-emitting materials.
The structure of the copolymer was characterized by infrared spectroscopy.
On the other hand, PVK has a certain conjugated structure of molecular weight distribution and it is well-known as good blue light-emitting materials.
Online since: February 2015
Authors: Da Wei Yin, Yu Ting Liu, Dan Chen, Si Meng Song
Simple, Efficient, and Selective Synthesis of Phthaloylserine and Phthaloylthreonine
Yu Ting LIU1,a *, Si Meng SONG1,b, Da Wei YIN2,c and Dan CHEN 2,d
1Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry, Ministry of Education.
Shaanxi University of Science & Technology, Xi’an, 710021, Shaanxi, China. 2College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, Shaanxi, China.
The structures of products were confirmed by IR, 1H NMR and 13C NMR.
The basic structure of amino acids with an amino and a carboxyl group, and some amino acids with two amino groups or two carboxyl groups, and some also contain hydroxyl, sulfhydryl reactive groups in side chain.
Shaanxi University of Science & Technology, Xi’an, 710021, Shaanxi, China. 2College of Chemistry and Chemical Engineering, Shaanxi University of Science & Technology, Xi’an, 710021, Shaanxi, China.
The structures of products were confirmed by IR, 1H NMR and 13C NMR.
The basic structure of amino acids with an amino and a carboxyl group, and some amino acids with two amino groups or two carboxyl groups, and some also contain hydroxyl, sulfhydryl reactive groups in side chain.
Online since: April 2016
Authors: Rui Ying He, Chang Ping Wei, Guo Dong Wang, Jing San
Preparation and Photoelectric Properties of Nb/SnO2 Composite Thin Films
Rui-ying He, Chang-ping Wei, Guo-dong Wang, Jing San
School of Chemistry and Environment Engineering,Changchun University of Science and Technology,Changchun Jilin 130022,China
Keywords: SnO2 film,Nb-doping,Sol-gel,Functional materials.
By using sol-gel method, Nb/SnO2 gel was prepared,and spin coating method was used to coat on glass substrates, which dried and calcined to obtain a homogeneous Nb / SnO2 composite films.Under the same experimental conditions, the different doping amount of nickel, calcination temperature on the structure and morphology of Nb/SnO2 film were discussed.
There are few reports about Nb / SnO2 at home and abroad, we use a sol - gel method to prepare a composite film Nb / SnO2 and studied its structure and optoelectronic properties.
By Nippon SmartLab smart X-ray diffraction analysis of samples structures, the radiation source is Cu Kα line (λ = 0.154 05 nm), the working conditions for the 40Kv, 30mA.
Chen: Chemistry of Materials, Vol. 25 (2013), p.4725-4730
By using sol-gel method, Nb/SnO2 gel was prepared,and spin coating method was used to coat on glass substrates, which dried and calcined to obtain a homogeneous Nb / SnO2 composite films.Under the same experimental conditions, the different doping amount of nickel, calcination temperature on the structure and morphology of Nb/SnO2 film were discussed.
There are few reports about Nb / SnO2 at home and abroad, we use a sol - gel method to prepare a composite film Nb / SnO2 and studied its structure and optoelectronic properties.
By Nippon SmartLab smart X-ray diffraction analysis of samples structures, the radiation source is Cu Kα line (λ = 0.154 05 nm), the working conditions for the 40Kv, 30mA.
Chen: Chemistry of Materials, Vol. 25 (2013), p.4725-4730
Online since: June 2011
Authors: Dong Mei Cao, Hai Qian Zhang, Xiao Dan Hu
Fe3O4 with well-defined globular structure was almost monodisperse, and the crystallinity was good.
Crystalline structure of magnetic iron-oxide nanoparticles prepared by solvothermal process was characterized by XRD.
This result confirmed the formation of the crystalline structure of Fe3O4 nanoparticles.
Fig. 5 structure of levofloxacin lactate The combination of UV radiation and iron oxides is an advanced oxidation processes destroying the contaminants.
Schwertmann, in: The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses, 2nd Ed., edited by Wiley-VCH Verlag GmbH & Co.
Crystalline structure of magnetic iron-oxide nanoparticles prepared by solvothermal process was characterized by XRD.
This result confirmed the formation of the crystalline structure of Fe3O4 nanoparticles.
Fig. 5 structure of levofloxacin lactate The combination of UV radiation and iron oxides is an advanced oxidation processes destroying the contaminants.
Schwertmann, in: The Iron Oxides: Structure, Properties, Reactions, Occurrences and Uses, 2nd Ed., edited by Wiley-VCH Verlag GmbH & Co.
Online since: February 2014
Authors: L.C. Nehru, C. Sanjeeviraja
But, now-a-days the approach is scientific and involves a wide number of specific competencies of solid state chemistry, analytical chemistry, physical chemistry and spectroscopy.
This value is still lower than the specified propellant chemistry calculations.
All the XRD patterns and search-match database analysis confirmed that the as-synthesized powders have the phase composition of wurtzite ZnO with P63mc structure [16].
The amount of the fuel or complexing agent has been fixed according to the concept of propellant chemistry.
Alberty, Physical Chemistry, third ed., Wiley, New York, NY, 2000
This value is still lower than the specified propellant chemistry calculations.
All the XRD patterns and search-match database analysis confirmed that the as-synthesized powders have the phase composition of wurtzite ZnO with P63mc structure [16].
The amount of the fuel or complexing agent has been fixed according to the concept of propellant chemistry.
Alberty, Physical Chemistry, third ed., Wiley, New York, NY, 2000
Online since: October 2016
Authors: Tadachika Nakayama, Koichi Niihara, Maria Guadalupe del Rocio Herrera Salazar, Hiroyuki Akiyama, Hisayuki Suematsu
Finally we fabricated micro-structures with a new hybrid material; TEOS does not absorb the laser in this system and does not interfere with the formation of a three-dimensional structure.
This technique let us make structures with micrometric resolution easily.
Until heating 300 °C, the thermal property of the three-dimensional structures fabricated did not show shrinkage.
Conclusions This hybrid material can be used for fabricate three-dimensional structures with composition of SiO2.
Chichkov, “Two-Photon Polymerization of Hybrid Sol-Gel Materials for Photonics Applications”, Hindawi Publishing Corporation Laser Chemistry, Volume 2008, Article ID 493059
This technique let us make structures with micrometric resolution easily.
Until heating 300 °C, the thermal property of the three-dimensional structures fabricated did not show shrinkage.
Conclusions This hybrid material can be used for fabricate three-dimensional structures with composition of SiO2.
Chichkov, “Two-Photon Polymerization of Hybrid Sol-Gel Materials for Photonics Applications”, Hindawi Publishing Corporation Laser Chemistry, Volume 2008, Article ID 493059
Online since: October 2015
Authors: Liliya A. Selyunina, Ekaterina A. Gavrilenko, Ekaterina E. Kuznetsova, Lyudmila N. Mishenina
The main stages of the formation of the crystalline structure CaMgAl10O17 were determined by thermal analysis, X-ray diffraction and IR spectroscopy.
The crystal structure begins to form at about 800 °C.
Scherer, Sol-Gel Science The Physics and Chemistry of Sol-Gel Processing, Academic Press, Inc., San Diego 1990
[11] P.N.M. dos Anjos Study of the structure and optical properties of rare-earth-doped aluminate particles prepared by an amorphous citrate sol–gel process / P.N.M. dos Anjos, E.C.
Locock, Spectroscopy and structure of hibonite, grossite, and CaAl2O4: Implications for astronomical environments, Geochimica et Cosmochimica Acta. 68 (2004) 4485-4503
The crystal structure begins to form at about 800 °C.
Scherer, Sol-Gel Science The Physics and Chemistry of Sol-Gel Processing, Academic Press, Inc., San Diego 1990
[11] P.N.M. dos Anjos Study of the structure and optical properties of rare-earth-doped aluminate particles prepared by an amorphous citrate sol–gel process / P.N.M. dos Anjos, E.C.
Locock, Spectroscopy and structure of hibonite, grossite, and CaAl2O4: Implications for astronomical environments, Geochimica et Cosmochimica Acta. 68 (2004) 4485-4503
Online since: July 2012
Authors: Jia Gui Li, Wan Ren Zhu, Shu Hong Ding, Yuan Chen, Yu Lin Zhu, Zhao Yu Huang
The motivation behind this activity has been stimulated by their potential applications in selective inclusion of ions, molecular recognition, host-guest chemistry, ion exchange, catalysis, electrical conductivity, magnetism, optics and so on[1~4].
The structure was solved by direct methods with SHELXS-97 package.
The structure was refined by full-matrix least-squares methods.
Fig.1 The crystal structure of 1 Fig. 2 1-D chain of 1.
The two-dimensional crystal structure system of complex 1 is formed by polymer chain intermolecular forces and hydrogen bonds(Fig. 3)
The structure was solved by direct methods with SHELXS-97 package.
The structure was refined by full-matrix least-squares methods.
Fig.1 The crystal structure of 1 Fig. 2 1-D chain of 1.
The two-dimensional crystal structure system of complex 1 is formed by polymer chain intermolecular forces and hydrogen bonds(Fig. 3)
Online since: May 2009
Authors: L. Zhao, C. He, Da Ming Zhang, Lei Cui, Jiang Chang
Both scaffolds were
characterized by fiber morphology, pore structure and mechanical properties.
Both of the scaffolds had relatively homogeneous fibrous structure with interconnected pores.
In addition, PBSU and PLGA fibrous scaffolds had more than 90% porosities, which indicate a highly porous structure.
Extracullular matrix production was a condition for integration of the polymer with the tissue structure in vivo.
Differences in chemistry of the outermost functional groups of a surface clearly affect endothelial cell attachment and proliferation [34].
Both of the scaffolds had relatively homogeneous fibrous structure with interconnected pores.
In addition, PBSU and PLGA fibrous scaffolds had more than 90% porosities, which indicate a highly porous structure.
Extracullular matrix production was a condition for integration of the polymer with the tissue structure in vivo.
Differences in chemistry of the outermost functional groups of a surface clearly affect endothelial cell attachment and proliferation [34].
Online since: January 2015
Authors: Yu Liu, Jian Gao, Hong Xiao Tian, Da Jun Song, Guang Hui Wang
Structure Studies on Order Assemblage of Cadmium II Isophthalicacid Benzimidazole Complexes
Guanghui Wang1, 2, Dajun Song3, Hongxiao Tian3, Jian Gao1, Yu Liu1, a*
1Department of Chemistry, Qilu University of Technology, Jinan, P.
China ayuliu@qlu.edu.cn * Corresponding author Keywords: CadmiumII isophthalicacid benzimidazole complex, binuclear, photosystem II, electrostatic interaction, supramolecular structure Abstract.
Adjacent complex link to each other via hydrogen bonds forming the three-dimensional supramolecular structure.
The structure of (I), showing 30% probability displacement ellipsoids.
The coordinated molecules are hydrogen bonded to O atoms and N atoms of neighbouring complex molecules (Fig. 2 and Table3) forming the three-dimensional supramolecular structure.
China ayuliu@qlu.edu.cn * Corresponding author Keywords: CadmiumII isophthalicacid benzimidazole complex, binuclear, photosystem II, electrostatic interaction, supramolecular structure Abstract.
Adjacent complex link to each other via hydrogen bonds forming the three-dimensional supramolecular structure.
The structure of (I), showing 30% probability displacement ellipsoids.
The coordinated molecules are hydrogen bonded to O atoms and N atoms of neighbouring complex molecules (Fig. 2 and Table3) forming the three-dimensional supramolecular structure.