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Online since: April 2015
Authors: Noorsuhana binti Mohd Yusof, Sitinoor Adeib binti Idris, Ahmad Hafizie Zaini, Nurul Aimi Ghazali, Nur Hashimah Alias, Junaidah Jai
In the bottom-up approached, the structure of nanoparticles is constructed by atoms, molecules or clusters.
It can be seen that when increasing of temperature it gave structure size differently and affect the particle size distribution.
Pure and applied chemistry, 72(1), 101-117
Pure and applied chemistry, 78(9), 1667-1689
The Journal of Physical Chemistry B, 108(28), 9574-9587
Online since: February 2012
Authors: Hua Qing Dong, Yu Jin Li, Wei Jian Sheng, Jian Rong Gao, Jian Hong Jia
One-pot process for preparation of ferrocenylethene derivatives via solvent-free Wittig Reaction Jianhong Jia, Huaqing Dong Yujin Li, Weijian Sheng and Jianrong Gao* State Key Laboratory Breeding Base of Green Chemistry-Synthesis Technology, Zhejiang University of Technology, Hangzhou 310014, P R China Email: Jiajh@zjut.edu.cn Keywords: one-pot process, solvent-free, Wittig reaction, ferrocenylethene, synthesis, nonlinear optical materials Abstract.
Synthesis and structure of (cis)-[1-ferrocenyl-2-(4-nitrophenyl)ethylene], an organotransition metal compound with a large second-order optical nonlinearity.
Aryl (ferrocenyl)-capped ethenylazaferrocenes: synthesis, structure and electrochemistry.
New Journal of Chemistry 2006;30(6):901-907
The structure and chemistry of ferrocene VII bridged ferrocenes1.
Online since: February 2014
Authors: Hairul A.A. Hamid, Rauzah Hashim, John M. Seddon, Nicholas J. Brooks
Brooks3,d 1,2Department of Chemistry, Faculty of Science, University of Malaya, 50603 Kuala Lumpur, Malaysia 1School of Chemistry, Faculty of Applied Sciences, Universiti Teknologi MARA, 40450 Shah Alam, Malaysia 3Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom ah.amani@salam.uitm.edu.my, brauzah@um.edu.my, cj.seddon@imperial.ac.uk, dnicholas.brooks@imperial.ac.uk Keywords: Lyotropic phase behaviour; lamellar phase; inverse hexagonal phase Abstract THE PHASE BEHAVIOUR AND SELF-ASSEMBLY STRUCTURAL PARAMETERS OF A PAIR OF MONOSACCHARIDE AND DISACCHARIDE GUERBET BRANCHED-CHAIN Β-D-GLYCOSIDES, NAMELY 2-OCTYLDODECYL Β-D-GLUCOSIDE (Β-GLC-C12C8) AND 2-OCTYLDODECYL Β-D-MALTOSIDE (Β-MAL-C12C8), HAVE BEEN STUDIED BY MEANS OF OPTICAL POLARIZING MICROSCOPY (OPM) AND SMALL-ANGLE X-RAY DIFFRACTION AT ROOM TEMPERATURE (25°C).
HEXAGONAL AND CUBIC PHASES) MAY BE SPONTANEOUSLY FORMED [3], DEPENDING ON THEIR MOLECULAR STRUCTURE.
(a) β-Glc-C12C8 (b) β-Mal-C12C8 FIG. 1 THE CHEMICAL STRUCTURES OF (A) Β-GLC-C12C8 AND (B) Β-MAL-C12C8 MATERIALS AND METHODS Guerbet glucosides synthesis The Guerbet glycosides shown in Fig. 1 were synthesized using a previously described procedure [4]. 1HNMR and thin-layer chromatography were employed to check the purity of the surfactants (≥ 98%).
Mobile tubular structures (myelin figures) appear, as can be seen from the polarized micrograph of the β-Mal-C12C8 compound (Fig. 2b), which supports the occurrence of the lamellar Lα phase.
Online since: August 2020
Authors: Noppakun Sanpo, Supan Yodyingyong, Darapond Triampo, Sujittra Kaenphakdee, Jeerapond Leelawattanachai, Jaturong Jitputti, Wannapong Triampo
Synthesis Study of Silver-Doped Zinc Oxide for Near-Infrared Shielding Applications Sujittra Kaenphakdee1, Supan Yodyingyong2, Jeerapond Leelawattanachai3, Wannapong Triampo4, Noppakun Sanpo5, Jaturong Jitputti5 and Darapond Triampo1,a* 1Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom, 73170, Thailand 2Institute for Innovative Learning, Mahidol University, Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom, 73170, Thailand 3National Science and Technology Development Agency (NSTDA), 111 Thailand Science Park, Phahonyothin Road, Khlong Nueng, Khlong Luang, Pathum Thani 12120, Thailand 4Department of Physics, Faculty of Science, Mahidol University, Phuttamonthon Sai 4 Road, Salaya, Nakhon Pathom, 73170, Thailand 5SCG Chemical Co., Ltd., Siam Cement Group (SCG), 271 Sukhumvit Road, Muang District, Rayong, 21150, Thailand adarapond.tri@mahidol.edu Keywords
The effects of Ag dopant on the crystal structure, morphology, NIR reflectance, and thermal insulation were discussed.
Crystal structure of samples was characterized by powder X-ray diffraction (XRD) on a Bruker D8 Advanced with Cu-Kα radiation (λ = 1.5418 Å and θ = 20–80°).
The XRD patterns of ZnO doped with various concentrations of Ag up to 10 mol% have diffraction peaks of (111), (200), (220), and (311) that referred to the face-centered cubic structure of metallic silver (JCPDS No. 04-0783).
Acknowledgements The financial support from the Center of Excellence for Innovation in Chemistry (PERCH-CIC), Ministry of Higher Education, Science, Research, and Innovation is thankfully acknowledged.
Online since: August 2011
Authors: Li Ling Guo, Xing Li, Han Xing Liu
This kind of structure constructs multi-quantum well energy band[1,2].
This gives the ease sequence of the layered structure forming, that is n=2>n=1>n=0.
This could be regarded as the result of the typical layered structure at molecular lever but not all the layered structure certainly results the sheet-like morphologies.
Progress in inorganic chemistry (John Wiley & Sons, 1999)
Solids Vol.68 (2007), p.1663-1673 [10] Gongdu Zhou, Lianyun Duan: The fundamental Structure Chemistry (the third edition, in Chinese).
Online since: August 2012
Authors: Feng Miao, Ying Huang
As different structure and components for crystals, there are different optical absorption spectra distinct from others.
Optical absorption spectra include large information about crystal structure and compounds.
As a main thereunder for crystals using spectrophotometric study, spectra investment includes identification of compounds, control of chemistry process, and confirmation of molecule construction, chemistry analysis of qualitative and quantitative and so on.
The crystal structure of Li2GeO3 is described by space point group Oh.
The structure is shown in Fig. 1.
Online since: May 2015
Authors: Xiao Wei Liu, Hai Feng Zhang, Yang Wang
The WCA on the surface is about 110°, because there is no obvious micrometer-scale or nanometer-scale structure on the substrate.
Fig. 1c clearly shows porous structures and more detailed morphology is shown in Figure. 1d.
Parkin, Chemistry: A European Journal 16 (2010) 3568–3588
Minami, Chemistry of Materials 12 (2000) 590–592
Jiang, Industrial & Engineering Chemistry Research 47 (2008) 6354-6359
Online since: June 2012
Authors: Li Hong Jiang, Shao Yun Shan, Ya Ming Wang, Qing Ming Jia, San Mei Li, Yi Cheng Hu
In recent years, in new material preparation, it is one of the most promising methods emerging from the inorganic chemistry and material science field. 2.
In recent years, many scholars attempted to synthesize various acidic salt with special structure by microwave-hydrothermal.
As an important optical material, tungstate with special structure is difficult to be synthsized by many methods.
The nano-powders with doped Mn2+ do not damage the structure of LiFePO4, but increase electrical conductivity markedly.
Ruan: Microwave Chemistry[M].
Online since: April 2019
Authors: Aivars Zhurinsh, Janis Locs, Ance Plavniece, Galina Dobele
Chemically Activated Hydrochar Flakes from Birch Wood Ance Plavniece1,2,a*, Aivars Zhurinsh1,b, Galina Dobele1,c and Janis Locs2,d 1Latvian State Institute of Wood Chemistry, Riga, Latvia 2Rudolfs Cimdins Riga Biomaterials Innovations and Development Centre of RTU, Institute of General Chemical Engineering, Faculty of Materials Science and Applied Chemistry, Riga Technical University, Riga, Latvia aance.plavniece@inbox.lv, baivarsz@edi.lv, cgdobele@edi.lv, djanis.locs@rtu.lv Keywords: hydrochar, biomass, activated carbon, porous structure.
Hydrochar exhibits distinct characteristics, including sphere-like morphology and core-shell chemical structure with a hydrophobic nucleus and hydrophilic shell.
AC includes several different carbonaceous materials with varied structure, form and pore size.
Comparison of the porous structure of АС based on hydrochar (AHTC1, AHTC2, AHTC4, AHTC6, AHTC12) and wood char (AWC) depending on raw material and preparation conditions.
Impact of biomass derived raw material on nitrogen doped porous carbon structure, Key Eng.
Online since: August 2017
Authors: Chaval Sriwong, Worapol Tejangkura, Kittisak Choojun
Preparation, Characterization and Photocatalytic Properties of Rubber-TiO2-rGO Composite Sheets for Dye Decomposition in Wastewater Worapol Tejangkura1,a, Chaval Sriwong1,b*, Kittisak Choojun1,2,c 1Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok, 10520, Thailand 2Catalytic Chemistry Research Unit, Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, Thailand aworapol_tej@yahoo.com, bkschaval@yahoo.com, ckittisak.ch@kmitl.ac.th Keywords: Titanium dioxide (TiO2), photocatalysis, dye decomposition, rubber composite sheet, reduced graphene oxide (rGO).
As can be observed form Fig. 1(a), the absorption peak of GO at 230 nm had been red shifted to 265 nm, indicating the restoration of the p conjugation (-C=C-) network of carbon structure within rGO upon chemical reduction [12].
The possible reasons could be the amorphous structure and very low content of rGO [9].
The peak at around 1630 cm-1 was identified the isoprene group of rubber structure.
Acknowledgment The authors would like to thanks the Department of Chemistry, Faculty of Science, King Mongkut’s Institute of Technology Ladkrabang for the financial support.