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Online since: May 2011
Authors: Jian Nan Xiang, Zhong Cao, Qin Deng, Ping Tan, Ai He Yu
Synthesis, Characterization and Invitro Anticancer Activity of Two Novel Series of Organotin Retinoates Ping Tan1,a, Ai-He Yu1,b, Qin Deng2,c, Jian-Nan Xiang2,3,*,d and Zhong Cao2,3,*,e 1 Hunan Mechanical and Technical Polytechnic, Changsha 410151, China 2 College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China 3 Hunan Provincial Key Laboratory of Materials Protection for Electric Power and Transportation, School of Chemistry and Biological Engineering, Changsha University of Science and Technology, Changsha 410004, China a tan_xiting@126.com, b hnyuaihe@126.com, c dengqindq@hotmail.com, d jnxiang@hnu.cn, e zhongcao04@yahoo.com.cn Keywords: di-n-butyltin oxide, retinoids, synthesis, characterization, biological activity Abstract.
These organotin retinoates were characterized by (1H, 13C, 119Sn) NMR, MS and IR and they presented two type of different structures.
On the base of all thought above, in order to improve pharmacology effects of organotin compounds, two series of novel organotin retinoates(3a~3d, 4a~4d) were synthesized and characterized by IR, (1H, 13C, 119Sn) NMR and MS, they presented two types of different structures: compounds 3a~3d beared a five-coordinated trigonal bipyramidal structure via the tin atom bridged by one carboxylate group; while compounds 4a~4d contained a core of Sn2O2 tetracyclictrigonal structure, the ester of these molecules formed two significant bonds and the tin atoms exist in a distorted octahedron geometry with the coordination number of six.
Guo: Coordination Chemistry Reviews.
Gielen: Coordination Chemistry Riviews.
Online since: January 2022
Authors: Guo Dong Zhan, Abdulwahab S. Aljohar, Timothy Eric Moellendick, Jian Hui Xu
The properties of these dissolvable alloys, therefore, depend on the chemistry, process and finally microstructure.
The polymeric PGA has a uniform chemical structure in linear polymer chains.
Magnesium has a hexagonal closed packed (HCP) crystal structure with only three independent slip systems.
With lithium additions up to 13 wt%, more ordered phases with cubic structure can be created with the hope to increase the ductility [13].
Besides the chemistry of the dissolvable Mg alloys, their dissolving rates are also dependent on solution chemistry and temperature.
Online since: June 2012
Authors: Jun Deng, Yan Ni Zhang, Wei Feng Wang, Shi Rong Li, Shuang Hou
Journal of Fuel Chemistry and Technology, 2004,32(6):652-656 (Ch) [2] Zeng Fanggui, Xie Kechang.
Theoretical system and methodology of coal structural chemistry[J].
Coal Structure and Reactivity[M].
Coal Chemistry[M].Beijing: Publishing House of Metallurgical Industry, 2005 [6] Yu Minggao, Zheng Yan-min, Lu Chang, JiaHailin.
Journal of Fuel Chemistry and Technology, 1997, 25(9):333~338(Ch) [9] Zhang Guoshu, Xie Yingming, Gu Jianming.
Online since: September 2014
Authors: Alexey D. Zhukov, Anastasiya Khimich, Dmitriy Zelenshchikov, Yekaterina Bobrova, Ruslan Mustafaev
Insulation systems and Green Sustainable Construction Zhukov Aleksey 1,a, Bobrova Yekaterina 2,b, Zelenshchikov Dmitriy 3,c, Mustafaev Ruslan 4,d, Khimich Anastasiya5,e. 1Professor, The Department of composite materials and applied chemistry , Moscow state university of civil engineering (MSUCE) 2A candidate of economical science, doctoral student of Composite materials technology and applied chemistry department FSBEI HPE MSUCE, an associate professor FSBEI HES 3 Postgraduate student The Department of composite materials and applied chemistry, Moscow state university of civil engineering (MSUCE) 4,5 Students of institute of construction and architecture, Moscow state university of civil engineering (MSUCE) alj211@yandex.ru (Corresponding Author), bmla-gasis@mail.ru, czdb@acado-s.ru, druslanmustafaev91@gmail.com, eKhimichanastasia@gmail.com Keywords: Heat insulation, Durability, Cellular concrete, Rock wool, Ecology, Construction systems Abstract.
This approach assumes to normalize energy consumption of the building in general and not to restrict heat flow through separated enclosing structures (exterior walls, roof, floor).
The basis for a system of rationing is an indicator of specific energy consumption for heating buildings, for which we determine thermal insulation properties combined with enclosing structures or building shell.
Kozlov: Mathematical model and engineering approach calculation of humidity in enclosing structures.
Khimich: Unautoclaved low-shrinkage cellular concrete for cast-in-situ structures.
Online since: May 2014
Authors: Xun Liu, Hong Zong Si, De Xiang Zhang
The contribution of each descriptor to structure-retention time relationships was evaluated.
The molecular structures are optimized using the Polak-Ribiere algorithm until the root mean square gradient is 0.01.
Smith: The effect of tobacco ingredients on smoke chemistry.Part I:Flavourings and additives, Food Chem.
Stewart: MOPAC 6.0, Quantum Chemistry Program Exchange, QCPE, No. 455, Indiana University, Bloomington, IN 1989
Maran: Interpretation of Quantitative Structure−Property and-Activity Relationships, J.
Online since: January 1992
The book includes several papers dealing with basic aspects of high temperature oxidation of metals such as defect structures in metal oxides of nonstoichiometric composition and their transport kinetics.
The present volume is recommended to researchers working in the fields of solid state chemistry, high temperature chemistry and high temperature corrosion.
Online since: April 2016
Authors: Cong Jie Gao, Ma Li Zhou, Jia Qi Wu, Jiang Nan Shen, Shan Shan Yang
The influence of synthetic conditions on the structures and adsorption properties of lithium ion-sieve was investigated in detail.
It shows that the three patterns fully assemble the same spinel structures.
Ooi: Industrial Engineering Chemistry Research, 40 (2001) 2054-2058
Clearfield: Journal of Solid State Chemistry, 131 (1997) 84-93
Ooi: Chemistry of Materials, 12 (2000) 3151-3157
Online since: April 2021
Authors: Li Bo Du, Yu Wang, Fan Bo Wang, Yu Guang Lv
Synthesis and Study of Fluorescent Probe Molecules Based on Rhodamine Class B Derivatives Yu Wang1,a, Fanbo Wang2,b, Libo Du3,c, Yuguang Lv1,d 1College of Pharmacy Jiamusi University Heilongjiang, Jiamusi, 154007, China 2First Affiliated Hospital of Jiamusi University Jiamusi, Heilongjiang, 154002, China 3State Key Laboratory for Structural Chemistry of Unstable and Stable Species, Center for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China E-mail: ayuguanglv@163.com, b18804686070@163.com, cdulibo@iccas.ac.cn ddulibo@iccas.ac.cn Keywords: rhodamine derivatives; fluorescent probe; metal ion; sample testing Abstract.
Introduction Rhodamine fluorescein derivatives, as a typical organic fluorescent dye with oxacene structure, have interphenyl oxygen bridge, which makes this kind of molecular materials have the characteristics of rigid common plane, and the stability of molecular structure is significantly enhanced.
Coordination Chemistry Reviews. (2018), 357: 50-104
Supramolecular Chemistry. (2018), 30(11): 911-917
Bioorganic & Medicinal Chemistry. (2018) 26(8): 1448-1452
Online since: February 2014
Authors: Suhana Binti Mohd Said, Muhammad Akmal Bin Kamarudin, Ahmad Zulazlan Shah Bin Zulkifli, Azizah Binti Mainal
Figure 1 The molecular structure of 4-pentyl-4¢-cyanobiphenyl, deuterated at the a-position of the pentyl chain (5CB-d2).
The liquid crystal in the PVA electrolyte forms a droplet-like structure embedded in the polymer matrix [10].
Searson, "A Solid State, Dye Sensitized Photoelectrochemical Cell," The Journal of Physical Chemistry, vol. 99, pp. 17071-17073, 1995/11/01 1995
Weissflog, "Structure of polymer networks in liquid crystals studied by 13C NMR," Liquid Crystals, vol. 22, pp. 157-164, 1997/02/01 1997
Wu, "Study of ionic transport properties of alkaline poly(vinyl) alcohol-based polymer electrolytes," Materials Chemistry and Physics, vol. 92, pp. 251-255, 2005.
Online since: November 2020
Authors: Sergey L. Sinebryukhov, Sergey V. Gnedenkov, Valentin I. Sergienko, Anton I. Neumoin, Denis P. Opra, Alexander A. Sokolov, Valery G. Kuryavyi
The phase composition and crystal structure were studied using the Bruker D8-Advance X-ray powder diffractometer.
High-capacity anode materials for lithium-ion batteries: Choice of elements and structures for active particles // Particle & Particle Systems Characterization. 2014.
Chemistry. 2014.
DOI: 10.1016/j.jelechem.2014.08.027 [10] Shen L., Shen L., Wang Z., Chen L., Lithium storage in heat‐treated SnF2/polyacrylonitrile anode // Chemistry: A European Journal. 2015.
Chemistry. 2015.