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MOLECULAR DESIGN STUDY ON THE NEW ORGANIC NONLINEAR OPTICAL MATERIALS

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苏州大学学报（自然科学版） 1992年第2期8卷 195-200页

作者：曹阳邱国芳 chenistry department

In this paper,the second-order nolinear-optical coefficients of a series of conjugated substituted polyenes have been colculated by the semi-empirical CNDO/S-CI *** have studied in deiail the influence on the number of substituents,the location of the substituents and the conjugation length in motecules to the NLO coefficient Bvace The results showed that the introduetion of the electroinc donor and acceptor groups and the increase in the distance between the substituents and the conjugated length may lead to enhanced NLO *** is also shown that the caiculoted In Bvec is linear with the number of double bonds in planar and linear tians substituted polyenes.A saturation effect in substitution is also *** on these discussion one can provide the theorilical guidelines for designing and synthesizing of molecules with larger NLO coefficients.

关键词：有机非线性光学材料有机分子无机晶体锂铌酸盐

BAND STRUCTURE OF ORGANIC SUPERCONDUCTOR β-(BEDT-TTF)_2I_3

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Chinese Science Bulletin 1991年第4期36卷 288-291页

作者：曹阳薛万川李庆远 Departmem of Chemistry Suzhou University Suzhou 215006 PRC department of chenistry Guangxi Normal University Guilin 541001 PRC

Ⅰ. INTRODUCTIONThirty organic superconductors have been synthesized since the first organic superconductor （TMTSF）2PF6 was synthesized in 1980. According to their donors, they can be classified into four families, TMTSF, BEDT-TTF, DMET and Ni（dmit）2. The BEDT-TTF is the largest one in which there are many kinds of compounds with Tc

关键词： organic superconductor β-(BEDT-TTF)2I3 band structure.

GEL PERMEATION CHROMATOGRAPHIC ANALYSIS OF LACQUER POLYSACCHARIDE

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Chinese Journal of Polymer Science 1992年第2期10卷 137-144页

作者：邱星屏张俐娜杜予民钱保功吕在民 department of chenistry Wuhan University Wuhan430072 Institute of Jilin Chemical Industry Corporation Jilin 132021

Ten fractionated samples of Chinese lacquer polysaccharide in aqueous 0.1M NaC1 solution were studied by aqueous-phase gel permeation chromatography （GPC）. The universal calibration, broad MWD calibration and corrected column dispersion were adopted to the analysis of GPC chromatograms of the polysaccharide. The molecular weights M;, M;and polydispersity index M;/M;obtained from GPC are in good agreement with the results of light scattering and membrane osmometry. It is verified that the universal calibration concept is applicable to the lacquer polysaccharide having a number of side chains.

关键词： Lacquer Polysaccharide Universal calibration Molecular weight Gel permeation chromatography

Novel Coordination Polymers Constructed from 4,4'-Bipyridine and Phosphate

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Chemical Research in Chinese Universities 2001年第Z1期17卷 146-147页

作者： Kwang-Hwa Lii department of Chemistry National Central University Chungli Taiwan Institute of Chenistry Acadenia Sinica Nankang

The synthesis of open-fiamework metal phosphates has been a subject of intense research owing to their interesting structural chemistry and potential applications as ionexchangers, catalysts and adsorbents. A large number of these materials are synthesized in the presence of organic amines as structure-directing agents. Recently, many research activities have focused on the synthesis of inorganic-organic hybrid frameworks. As compared with inorganic ligands, the advantage of using organic multidentate ligands is the efficacy of rational design of crystalline solids through their coordinating propensities and geometries.

关键词： rational design

烟气脱硫石膏力学、防水性及热力学性质的基础研究

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维普期刊数据库

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烟气脱硫石膏力学、防水性及热力学性质的基础研究

Superconductivity in CuIr_(2-x)Al_(x)Te_(4) telluride chalcogenides

2011中国建筑材料联合会石膏建材分会第二届年会暨第六届全国石膏技术交流大会及展览会

作者： Pavel Tesarek Jaroslava Drchalova Jiri Kllisko Pavla Rovnanikova Robert Cernya 郭泰民 Czech Technical University Faculty of Civil Engineering department of Structural Mechanics Czech Technical University Faculty of Civil Engineering department of physics Czech Technical University Klokner Institute Brno University of Technology Faculty of Civil Engineering of chenistry 江西省陶瓷研究所

烟气石膏(FGD石膏)是一种由电厂和加热设备排烟脱硫大量产生的废渣。然而目前其应用量与其排出量相比很小。现在仅主要用于生产石膏板,其余的则在堆场堆放。将FGD石膏在11050℃脱水可以生产优质的低能耗材料。煅烧后的FGD石膏可以制作... 详细信息

烟气石膏(FGD石膏)是一种由电厂和加热设备排烟脱硫大量产生的废渣。然而目前其应用量与其排出量相比很小。现在仅主要用于生产石膏板,其余的则在堆场堆放。将FGD石膏在11050℃脱水可以生产优质的低能耗材料。煅烧后的FGD石膏可以制作建筑材料。由于其价格低,数量大,此材料在用于建筑材料上(也可以用作承重材料)有很大潜力。此材料在建筑业被忽视的原因之一是对其性质几乎缺乏认识。本文测试了煅烧FGD石膏水化后的基础力学、热力学、防水性参数,即抗压强度、抗折强度、抗热性、抗冷冻性能、湿度扩散率、水蒸气扩散系数、吸附等值线、保水曲线、热传导性、体积热容、线膨胀系数。

关键词：烟气石膏 FGD石膏煅烧石膏机械性能热力学性能防水性性能

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cnki会议

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Chinese Physics B 2022年第3期31卷 538-544页

作者：严冬曾令勇曾宜杰林一石殷俊杰王猛王熠华姚道新罗惠霞 School of Materials Science and Engineering State Key Laboratory of Optoelectronic Materials and TechnologiesKey aboratory of Polymer Composite&Functional MaterialsGuangzhou Key Laboratory of Flexible Electronic Materials and Wearable DevicesSun Yat Sen UniversiyGuangzhou 510275China Center for Neuron Science and Technology School of PhysicsSun Ya-Sen UniversityGuangzhou 510275China State Key Laboratory of Surface Physics and department of Physics Fudan UniversityShanghai 200433China Shanghai Research Center for Quantum Sciences Shanghai 201315China Key Laboratory of Functional Molecular Solids Ministry of EducationCollege of Chenistry and Materials ScienceAnhui Normal UniversityWuhu 241002China College of Science Hangzhou Dianzi UniversityHangzhou 310018China

The relationship between charge-density-wave(CDW) and superconductivity(SC), two vital physical phases in condensed matter physics, has always been the focus of scientists’ research over the past decades. Motivated by this research hotspot, we systematically studied the physical properties of the layered telluride chalcogenide superconductors CuIr_(2-x)Al_(x)Te_(4)(0 ≤x≤ 0.2). Through the resistance and magnetization measurements, we found that the CDW order was destroyed by a small amount of Al doping. Meanwhile, the superconducting transition temperature(T_(c)) kept changing with the change of doping amount and rose towards the maximum value of 2.75 K when x = 0.075. The value of normalized specific heat jump(△C/γT_(c)) for the highest T_(c) sample CuIr_(2-x)Al_(x)Te_(4)was 1.53, which was larger than the BCS value of 1.43 and showed the bulk superconducting nature. In order to clearly show the relationship between SC and CDW states,we propose a phase diagram of T_(c) vs. doping content.

关键词： layered telluride chalcogenide superconductivity charge-density-wave CuIr_(2-x)Al_(x)Te_(4)

A New Convergent Approach to Unsymmetrically Branched Polyether Dendrimers

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Chemical Research in Chinese Universities 2001年第Z1期17卷 170-171页

作者： GAO Xiaoping department of Chemistry National Laboratory of Applied Organic Chemistry Lanzhou University

Dendrimers are perfect monodisperse macromolecules with a regular and highly branched three-dimensional architecture. The combination of discrete numbers of functionality in one molecular and high densities of active groups, typical for dendritic molecules, has attracted a lot of attention in the fields of medicinal chenistry (e.g. in drug delivery system), host-guest chemistry and catalysis chemistry[1].

关键词： drug delivery system catalysis chemistry densities of