混合金属,四面体型RuCo3羰基簇合物的取代研究

簇合物ＮＥｔ４ＲｕＣｏ３（ＣＯ）１２［１］分别与配体三苯基膦和二苯基膦反应，得到双取代产物ＮＥｔ４Ｃｏ３（ＣＯ）１０（ＰＰｈ３）２《３》和ＮＥｔ４Ｃｏ３（ＣＯ）１０（ＰＰｈ２Ｈ）２［５］。双取代产物进一步质子化，则得到具有相应结构的中性簇合物ＨＲｕＣｏ（ＣＯ）１０（ＰＰｈ３）２［４Ａ］和ＨＲｕＣｏ（ＣＯ）１０（ＰＰｈ２Ｈ）２。它们的结构通过元素分析，红外，＾１ＨＮＲＭ．＾３１ＰＮＭＲ的关反应确认。     

五水羟基合铬(Ⅲ)配合物与氨基乙酸取代反应的动力学

应用分光光度法研究了五水羟基合铬（Ⅲ）配合物与氨基乙酸取代反应的动力学，在氨基乙酸大大过量的条件下，该反应对［Ｃｒ（Ｈ２Ｏ）５ＯＨ］２＋＿为假一级反应。探讨了反应物浓度、溶液酸度、氨基乙酸浓度、离子强度及反应温度对反应速率的影响，计算了反应的活化参数，提出了反应可能的机理，表明反应通过了一个缔合交换（Ｉａ）的机理．     

羟基乙酸、2，2′－联吡啶稀土三元配合物的量热研究

用量热滴定法以甲醇—水混和溶剂为体系（φ甲醇＝０．８６），测定了羟基乙酸稀土［Ｌａ（Ⅲ），Ｃｅ（Ⅲ）］与２，２′－联吡啶在２５℃时配位作用．计算了配合物的稳定常数和配位反应热焓．讨论了三元配合物的热力学性质随稀土原子序数的变化规律，并在文献［１］的基础上，对羟基乙酸稀土［Ｌａ（Ⅲ）］与不同含氮配体的配位作用进行了比较     

双核镉(Ⅱ)原子多氮穴合物的合成与晶体结构研究

报道了以三（３－胺基丙基）胺（ｔｒｐｎ）在Ｃｄ（ＣｌＯ４）２·６Ｈ２Ｏ存在下，分别与２，６－二甲醛基－４－甲苯酚（ｄｍｐ）及２，６－二甲醛基－４－溴苯酚（ｄｂｐ）的钠盐发生［２＋２］和［２＋３］的希夫碱缩合反应，合成了两个新的双核镉（Ⅱ）多氮穴合物［Ｃｄ２Ｌ１］ＣｌＯ４和［Ｃｄ２Ｌ２（Ｈ２Ｏ）］·２ＣｌＯ４·０．５ＣＨ３ＯＨ．晶体结构表明：穴合物中两个镉（Ⅱ）原子均处于相似的环境，每个镉（Ⅱ）原子的配位数均为７（Ｎ４Ｏ３），处于变形十面体的中心，穴合物［Ｃｄ２Ｌ１］＋中的两个镉（Ⅱ）通过三个酚氧原子为桥；穴合物［Ｃｄ２Ｌ２（Ｈ２Ｏ）］２＋中的两个镉（Ⅱ）则是通过二个酚氧原子和外加一个参与配位的水分子为桥连接起来．并进一步比较了［Ｃｄ２Ｌ１］，［Ｃｄ２Ｌ２（Ｈ２Ｏ）］２＋及另两个相似的镉（Ⅱ）双核穴合物［Ｃｄ２Ｌ３］＋，［Ｃｄ２Ｌ４］＋的稳定性大小．     

石油亚砜萃取铟的机理研究

研究表明，在盐酸介质中，石油亚砜萃取铟的机理与水相酸度有关。低酸度时，亚砜通过氧原子与ＩｎⅢ）配位生成萃合物ＩｎＣｌ３，２ＰＳＯ．Ｈ２Ｏ，高酸度时，亚砜则通过氧原子配位溶剂化，并与Ｉｎ（Ⅲ）反应生成离子缔合物［ＰＳＯ→Ｈ］＾＋［ＩｎＣｌ４．２ＰＳＯ］＾－。     

含μ－P（sph）_2的三核铑羰合簇Rh_3［μ－P（SC_6H_5）_2］_

Ｒｈ＿４（ＣＯ）＿（１２）与亚磷酸三硫代苯酯Ｐ（ＳＣ＿６Ｈ＿５）＿３反应产生一个具有磷桥基配体μ－Ｐ（ＳＣ＿６Ｈ＿５）＿２的新簇合物Ｒｈ＿３［μ－Ｐ（ＳＣ＿６Ｈ＿５）＿２］＿３（μ－ＣＯ）（ＣＯ）＿４．对该簇合物进行了元素分析测定以及ｌＲ、ＨＮＭＲ和ＭＳ谱学的表征     

理论研究气相中NH+4(H2O)n(n=1～6)簇合物的结构特征

利用密度泛函理论中B3LYP方法．6—31G（d,p）基组对NH4^＋（H2O）n（n=1～6）簇合物进行几何优化。得到了稳定结构,本论文分拆了NH4^＋（H2O）n（n=1～6）簇合物的稳定结构．发现NH4^＋与H2O以线性氢键结合成的簇合物结构最稳定。其次是二叉结构,再次是三叉结构．     

含联吡啶或邻菲绕啉过渡金属配正离子与[Ni(cdc)_2]~(2-)的加合物的合成和波谱性质

合成了一系列含联吡啶或邻菲绕啉配体过渡金属配正离子与双（N-氰基亚胶基二硫代甲酸）合镍负离子的加合物，其通式为［ML2］［Ni（Cdc）2］（M＝Cu，Ni，CO；L＝bpy，Phen），［L2Cu2（P－C2O4）］［Ni（cdc）2］（L＝bpy，Phen）以及［M（Phen）n］［Ni（cdc）2］·2H2O（n＝1，M＝Cu；n＝2，M＝Zn）．通过元素分析、红外光谱、电子光谱、磁化率和顺磁共振谱对这些加合物进行了表征，讨论了正、负离子间的相互作用．     

［Mo_3S_7Cl］结构单元钼－硫簇合物的晶体结构

［Ｍｏ＿３Ｓ＿７Ｃｌ］结构单元钼－硫簇合物的晶体结构王曼芳，郭国聪（厦门大学化学系）（中科院福建物质结构研究所）含Ｍｏ＿３（μ＿３－Ｘ）和Ｍｏ＿３（μ＿３－Ｘ）＿２（Ｘ＝Ｏ，Ｓ）的三核钼族合物，在考虑簇骨架多面体时可认为金属与非金属混合组成的结构多面...     

高分子凝胶化后诸性质与系统反应进程的关联

本文在Ｃｈａｒｌｅｓｂｙ［３］和唐敖庆［４］工作基础上，应用一般概率论概念，不经过分子量分布函数，对缩聚反应，固化反应、高分子交联反应（两种均聚物或一种共聚物）凝胶化后溶胶中诸性质与系统反应程度的关联进行统一的理论分析．     

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     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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