四氯合金属(Ⅱ)酸双烷基铵的合成、结构和相变研究 I.(n-C_(12)H_(25)NH_3)_2MCI_4(M=Zn、Cu)

合成了二维片层化合物(n-C_(12)H_(25)NH_3)_2MCl_4(M=Zn、Cu),并且用元素分析和富里叶变换红外光谱对其进行了表征、用热分析法确定了它们的分解温度、相变温度和相变焓。     

缺位型杂多阴离子Keggin结构化合物的合成及表征

利用相转移试剂[(CH3)4N]Br和[n—C16H33(CH3)3N]Br，合成了3种含有机金属基团-RTi的杂多化合物．由元素分析、热重分析和红外光谱分析表明，合成的化合物具有典型的Keggin结构，有机基团通过Ti-O-W与一缺位杂多阴离子(α-PW11O39)^6-相连，并初步探讨了这3种化合物在常见溶剂中的溶解性．     

新的超分子化合物（H2bbi）5（HP2M05023）2（H20）2的水热合成、晶体结构和荧光性质

利用中温水热法合成了一种未见报道的一维超分子杂化物,（H2bbi）5（HP2Mo5023）2（H20）2[bbi=1,1’-（1,4-丁烷）双（咪唑）],通过元素分析、IR、单晶x-射线衍射对化合物的结构进行了表征．结果表明该化合物属于单斜晶系,P2（1）/c空间群;晶胞参数：a=17．253（5）A,b=21．169（5）A,c=25．397（5）A,β=104,537（5）A,Z=4,V=8979（4）A^3,R1=0．0383,wR2=0．0868．两个晶体学独立的Standberg型[HP2M05023]卜阴离子和5个双质子化的bbi配体通过氢键作用拓展成一维超分子．此外,该固态化合物在室温下显示出蓝色的荧光性质．     

3-氯苯甲醛丙氨酸席夫碱及其3d-过渡金属配合物的研究

合成了3－氯苯甲醛丙氨酸席夫碱及其与Cu（Ⅱ），Ni（Ⅱ）、Co（Ⅱ）、Zn（Ⅱ）离子所形成的配合物；以元素分析、摩尔电导、热重、红外光谱、^1HNMR谱等手段研究了化合物的组成和配位环境；对所合成的化合物进行了抑制超氧自由基的初步实验，发现3－CACu、3－CANi有较强的抑制超氧离子自由基的作用，但与SOD相比相差较远，其余化合物几乎没有作用。     

半菁化合物热行为和晶体结构的研究

合成了５个不同烷基链长的半菁化合物：Ｍｅ２ＮＣ６Ｈ４ＣＨ＝ＣＨＣ５Ｈ４ＮＣｎＨ２ｎ＋１Ｂｒ（ｎ＝１６，１２，４，２和１）。由可见光谱、红外光谱、差热、热重谱、微分扫描量热分析和偏光显微镜研究结果，讨论了烷基链长的变化对半菁化合物有关性质的影响。     

2,6-吡啶二甲酸二甲基锡衍生物的合成及结构表征研究

本论文通过2,6-吡啶二甲酸与二甲基二氯化锡的反应，合成了两个新型的有机锡化合物[M2Sn（2，6-C5H3N（COO）2）]3（1）和[M％Sn（2，6-C5H3N（COO）2）]2（MeOH）2（2）。并通过元素分析、红外、核磁和X-射线单晶衍射对它们的结构进行了表征．结果表明锡原子的几何构型都为畸变的五角双锥。化合物（1）是一个具有环状鲒构的三锡杖的化合物。化合物（2）却是一个具有梯形结构的二聚物．     

水热组合方法在合成亚磷酸镓中的应用

应用水热溶剂热组合合成方法, 在Ga-H₃PO₃-1,2-dap(1,2-丙二胺)-EG（乙二醇）/H₂O体系中合成了3种三维空旷骨架亚磷酸镓化合物以及1种磷酸镓化合物, 对其进行了红外光谱、 元素分析及X射线单晶衍射结构分析, 并讨论了合成因素对晶化的影响.     

醇体系中硅支撑的层柱状磷酸锑（V）的合成与表征

在有机体系中，以溶剂热法合成出五价层柱状磷酸锑化合物，并研究了合成条件对产物的影响；采用X-ray衍射和红外光谱法分析了该化合物粉末并对其化合物的结构组成进行了鉴定．为定向合成其它层柱状化合物提供了可参考的依据．     

含一缺位杂多阴离子有机金属Keggin结构化合物的合成与表征

利用相转移试剂[(CH3)4N]Br和[n C16H33(CH3)3N]Br,合成了3种含有机金属基团 RTi的杂多化合物.经元素分析、热重分析和红外光谱结果表明,所合成的化合物具有典型的Keggin结构,有机基团通过Ti—O—W键与一缺位杂多阴离子(α PW11O39)6-相连.探讨了所合成化合物在常见溶剂中的溶解性.     

一个新的二维超分子化合物Mn(PIP)2(N3)Cl的水热合成、晶体结构和荧光性质(PIP=2-苯基咪唑[4,5-f][1,10]菲啰啉

利用中温水热法合成了一种未见报道的二维超分子网络,Mn（PIP）2（N3）Cl（PIP=2-苯基咪唑[4,5-f][1,10]菲啰啉）,通过元素分析、IR、单晶X-射线衍射对化合物的结构进行了表征。结果表明该化合物属于正交晶系：P2／n空间群;晶胞参数：a=8．2864（6）A．b=9．7999（7）A,c=39．687（3）A,Z=4,V=3222．4（4）A^3,R1=0．0616,wR2=0．1847。每个Mn（II）与来自N3^-的一个N原子,一个Cl^-和来自两个PIP配体的四个N原子配位形成单核配合物。相邻的配合物单元通过π-π堆积作用进一步拓展成2D超分子网络。此外．该固态化合物在室温下表现出蓝色的荧光性质。     

Markedness and its Interpretation in Language Use

Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.     

Features of Women's language

Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women＇s language from these perspectives： pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women＇s language, more attention should be paid to language use in social context. What＇s more, the linguistic phenomena in a speaking community can be understood more thoroughly.     

低渗透非均质砂岩油藏启动压力梯度研究

理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。     

On Tragic Consciousness In The Works By Ernest Hemingway

As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with     

Journal of Donghua University ( English Edition) Contents of Volume 31

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