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Online since: October 2013
Authors: Hui Yong Zhang
The synthesis chemistry is robust and commercial oligonucleotide synthesizers have taken advantage of the chemistry to provide oligonucleotides of high quality and purity.
MB is a short hairpin oligonucleotide probe containing a stem and loop structure.
The synthesis chemistry is robust and commercial oligonucleotide synthesizers have taken advantage of the chemistry to provide oligonucleotides of high quality and purity.
Zeng,A simple and rapid biosensor for ochratoxin A based on a structure-switching signaling aptamer Food Control 25(2012) 555-560
Stinson,DNA SYNTHESIZERS BASED ON 2-CHEMISTRIES Chemical & Engineering News 59(1981) 17-18
MB is a short hairpin oligonucleotide probe containing a stem and loop structure.
The synthesis chemistry is robust and commercial oligonucleotide synthesizers have taken advantage of the chemistry to provide oligonucleotides of high quality and purity.
Zeng,A simple and rapid biosensor for ochratoxin A based on a structure-switching signaling aptamer Food Control 25(2012) 555-560
Stinson,DNA SYNTHESIZERS BASED ON 2-CHEMISTRIES Chemical & Engineering News 59(1981) 17-18
Online since: September 2007
Authors: Ling Bin Lu, Ke Long Huang, Feng Wen
Study on Structure of the New Polymer- Poly
(propylene-co-γ-butyrolactone carbonate) with Molecular Model
Lingbin Lu1, a
, Kelong Huang2, b and Feng Wen
1, c
1
Key Laboratory of Tropical Biology Resource of Ministry of Education, Department of Material,
Science and Engineering Institute, Hainan University, Haikou 570228, China
2
School of Chemistry and Chemical Engineering, Central South University,
Changsha 410083, China
a
lulingbin@126.com, b huangkelong@yahoo.com.cn, c Fwen323@163.com
Keywords: Polymer; Molecular simulation; Structure and properties.
The least structure was the tri-copolymer of three monomers.
Especially, the aggregation of PO structure was more.
Beijing: Chemistry industry Press, 1996 [3] D.N.
Huang: Journal of Polymer Science Part-A: Polymer Chemistry Vol.43(2) (2005) , p. 2468-2475 [7] L.B.
The least structure was the tri-copolymer of three monomers.
Especially, the aggregation of PO structure was more.
Beijing: Chemistry industry Press, 1996 [3] D.N.
Huang: Journal of Polymer Science Part-A: Polymer Chemistry Vol.43(2) (2005) , p. 2468-2475 [7] L.B.
Online since: October 2011
Authors: Di Tao Niu, Feng Qu
Abstract: Under action of repeated freeze-thaw cycles, different changes of pore structure features has occurred in different varieties of concrete.In this study, the average pore size of concrete and total porosity was discussed especially with the trends.Based on this, the gas diffusion model and the chloride ion diffusion model in concrete was also discussed with the pore structure,which indicated that the freeze-thaw damage of concrete pore structure will have a greater impact to the durability of concrete, and so the life of concrete structures would be affected.
In 7th International Congress on the Chemistry of Cement (1980),F.H.Wittman has proposed the Pore Science.Since then, the research on pore structure features or theory has become a hot spot.
The research of pore structure included: porosity, pore size distribution and pore geometry.All the test and evaluation technique of concrete pore has become an important part of materials science of concrete.For further study of concrete pore structure features to the durability of concrete before and after freeze-thaw,the research focused on the change of concrete pore structure with the change,and explored its impact to the durability of oncrete.
[2] Mehta P K,Manmohan C.Pore size distribution and permeability of hardened cement paste[C]//7th International Congress on the Chemistry of Cement.Paris,France,1980,3(7):1-5
[4] H.J.Butt,K.Graf and M.Kappl,Physics and chemistry of interfaces,Wiley-VHC,Weinheim,2003
In 7th International Congress on the Chemistry of Cement (1980),F.H.Wittman has proposed the Pore Science.Since then, the research on pore structure features or theory has become a hot spot.
The research of pore structure included: porosity, pore size distribution and pore geometry.All the test and evaluation technique of concrete pore has become an important part of materials science of concrete.For further study of concrete pore structure features to the durability of concrete before and after freeze-thaw,the research focused on the change of concrete pore structure with the change,and explored its impact to the durability of oncrete.
[2] Mehta P K,Manmohan C.Pore size distribution and permeability of hardened cement paste[C]//7th International Congress on the Chemistry of Cement.Paris,France,1980,3(7):1-5
[4] H.J.Butt,K.Graf and M.Kappl,Physics and chemistry of interfaces,Wiley-VHC,Weinheim,2003
Online since: February 2011
Authors: Jian Zhong Xu, Ke Hu, Ji Xing Xie
The Effect of Organic Compounds on the Crystal
Structure of Zinc Hydroxystannate
Jianzhong Xu1, a, Ke Hu2, b and Jixing Xie3,c
College of Chemistry and Environmental Science, Hebei University, Baoding, China
axujzhbu@hotmail.com, bgzs6b9d@126.com, cxjx0629@yahoo.cn
Keywords: Zinc Hydroxystannate; Organic Compounds; Crystal Structure ;Morphology
Abstract.
Results and Discussion Crystal Structure.
The crystal structure of all products was analyzed by XRD.
[6] Zhouguang Lu, Yougen Tang: Materials Chemistry and Physics. vol. 92 (2005). p. 5-9
[11] Qun Zhang, Chuanbao Chen, Liang Fang: Materials Chemistry and Physics. vol. 111 (2008). p. 191–194
Results and Discussion Crystal Structure.
The crystal structure of all products was analyzed by XRD.
[6] Zhouguang Lu, Yougen Tang: Materials Chemistry and Physics. vol. 92 (2005). p. 5-9
[11] Qun Zhang, Chuanbao Chen, Liang Fang: Materials Chemistry and Physics. vol. 111 (2008). p. 191–194
Online since: January 2013
Authors: Xu Zhang, Huan Zhang, Jun Guo Ma
Our previous studies show that as a semi-empirical method interpreting experimental data this model has many attractive features by comparing with the complicated calculation of the quantum chemistry.
However, these works are only studied on the basis of inorganic crystal structures, not for our present metal organic compounds.
Theoretical Basis BVM has recently found wide use in mineralogy and structural inorganic chemistry as a valuable tool for detecting errors in crystal structure determination and for prediction inter atomic distances in the crystal structures of known chemical composition and presupposed topology [3,4].
Extended studies of this subject can improve the applicability of BVM and our understanding of the involved structural chemistry for metal orange complexes.
Aspinall: Chemistry of the f-Block Elements, Advanced Chemistry Texts (Gordon and Breach Science Publishers, Amsterdam 2001)
However, these works are only studied on the basis of inorganic crystal structures, not for our present metal organic compounds.
Theoretical Basis BVM has recently found wide use in mineralogy and structural inorganic chemistry as a valuable tool for detecting errors in crystal structure determination and for prediction inter atomic distances in the crystal structures of known chemical composition and presupposed topology [3,4].
Extended studies of this subject can improve the applicability of BVM and our understanding of the involved structural chemistry for metal orange complexes.
Aspinall: Chemistry of the f-Block Elements, Advanced Chemistry Texts (Gordon and Breach Science Publishers, Amsterdam 2001)
Online since: October 2014
Authors: Dmitrii Afanasiev, Yurii Abzaev, Vladimir D. Klopotov, Yurii Sarkisov, Аnatoliy A. Klopotov
This example depicts the structure at this scale level well enough determined by the properties and the behavior of individual layers of the structure and their interaction.
Different forces and factors are significant for each hierarchy of structures.
Vest, Chemistry of solids.
Vyrodov, Ten studies on physical chemistry binders, Krasnodar Polytechnic Institute, 419 (1982) 82
Frolov, Rates of colloid chemistry, Mir, Moscow, 1982
Different forces and factors are significant for each hierarchy of structures.
Vest, Chemistry of solids.
Vyrodov, Ten studies on physical chemistry binders, Krasnodar Polytechnic Institute, 419 (1982) 82
Frolov, Rates of colloid chemistry, Mir, Moscow, 1982
Online since: September 2011
Authors: Xiu Mei Li, Zhi Tao Wang, Qing Wei Wang
Synthesis and Crystal Structure of a Cadmium(II) Complex with
2-(4΄-Chlorine-benzoyl)-benzoic Acid and 1,10-Phenanthroline
Xiumei Li1,a, Zhitao Wang2,a, Qingwei Wang3, b
1Department of Chemistry, Tonghua Teachers College, Tonghua, Jilin 134002, China
2Department of Chemistry, Tonghua Teachers College, Tonghua, Jilin 134002, China
3Jilin Normal University, Siping, Jilin 136000, China
alixm20032006@yahoo.com.cn, bsinkingfish@126.com, cwqw611223@163.com
Keywords: hydrothermal synthesis, crystal structure, cadmium(II) complex, luminescence
Abstract A new metal-organic complex Cd2(cbba)4(phen)2 (Hcbba = 2-(4΄-chlorine-benzoyl)- benzoic acid, phen = 1,10-phenanthroline) 1 has been hydrothermally synthesized and structurally characterized by elemental analysis, IR, fluorescence spectrum and single-crystal X-ray diffraction.
Introduction The designed synthesis and characterization of metal-organic coordination polymers have achieved considerable progress in supramolecular chemistry and material chemistry[1~6].
The molecular structure of 1 is shown in Fig. 1.
Lehn, Supramolecular Chemistry, Concepts and Perspectives.
Atwood, Supramolecular Chemistry, Wiley and Sons, New York, 2000
Introduction The designed synthesis and characterization of metal-organic coordination polymers have achieved considerable progress in supramolecular chemistry and material chemistry[1~6].
The molecular structure of 1 is shown in Fig. 1.
Lehn, Supramolecular Chemistry, Concepts and Perspectives.
Atwood, Supramolecular Chemistry, Wiley and Sons, New York, 2000
Online since: June 2010
Authors: Gonsal Badenes, Mindaugas Leonas Balevicius, J. Tamulienė, Rimas Vaisnoras
Based on quantum chemistry research results we present and consider reasons due to
which magnetic properties of small particles are different.
So, obtained performances allow us foresee how magnetic properties of the particles depend on their structures.
It is interesting that the most stable structure of Co6O8 (prototype of Co3O4) has deformed spinel structure [9].
Boatz, at all: Journal Computational Chemistry, Vol.14 (1993), p. 1347
DALTON, a molecular electronic structure program.
So, obtained performances allow us foresee how magnetic properties of the particles depend on their structures.
It is interesting that the most stable structure of Co6O8 (prototype of Co3O4) has deformed spinel structure [9].
Boatz, at all: Journal Computational Chemistry, Vol.14 (1993), p. 1347
DALTON, a molecular electronic structure program.
Online since: October 2008
Authors: Stuart Hampshire
The development of
knowledge of microstructure-property relationships in silicon nitride materials is outlined,
particularly recent advances in understanding the effects of grain boundary chemistry and structure
on mechanical properties.
The structures are Figure 6.
Grain boundary chemistry affects interfacial bond strengths.
The development of knowledge of microstructure- property relationships in silicon nitride materials has shown the importance of understanding the sintering process and the effects of grain boundary phases and interfacial chemistry and structure on mechanical and thermal properties.
Thompson: in: High Temperature Chemistry of Inorganic and Ceramic Materials, edited by F.
The structures are Figure 6.
Grain boundary chemistry affects interfacial bond strengths.
The development of knowledge of microstructure- property relationships in silicon nitride materials has shown the importance of understanding the sintering process and the effects of grain boundary phases and interfacial chemistry and structure on mechanical and thermal properties.
Thompson: in: High Temperature Chemistry of Inorganic and Ceramic Materials, edited by F.
Online since: October 2011
Authors: A.I. Igbafe, O.F. Omobude
The model chemistry methods were evaluated using the GuassView for generating molecular structures of species and the Gaussian 03 (G03) package for energy computation.
[3] Cramer, C., Essentials of Computational Chemistry, John Wiley and Sons, Chichester, 2002
[5] Jensen, F., Introduction to Computational Chemistry, John Wiley and Sons Ltd., Chichester, 1999
[7] Heinrich, H., The Chemistry of the Atmosphere and Oceans, John Wiley and Sons, New York, 1978
N., Atmospheric Chemistry and Physics: From air pollution to climate change, Wiley interscience, New York, 1998
[3] Cramer, C., Essentials of Computational Chemistry, John Wiley and Sons, Chichester, 2002
[5] Jensen, F., Introduction to Computational Chemistry, John Wiley and Sons Ltd., Chichester, 1999
[7] Heinrich, H., The Chemistry of the Atmosphere and Oceans, John Wiley and Sons, New York, 1978
N., Atmospheric Chemistry and Physics: From air pollution to climate change, Wiley interscience, New York, 1998