草酰二胺桥联的双核钴（Ⅱ）、镍（Ⅱ）和铜（Ⅱ）配合物的合成与磁性

已合成四种新的草酰二胺桥联的双核钴（Ⅱ）、镍（Ⅱ）和铜（Ⅱ）配合物：Ｃｏ＿２（ｂｐｙ）＿２（ｏｘｄ）（ＣｌＯ＿４）＿２（１），ＣＯ＿２（Ｍｅ＿２－ｂｐｙ）＿２（ｏｘｄ）（ＣｌＯ＿４）＿２·Ｈ＿２Ｏ（２），Ｎｉ＿２（ｂｐｙ）＿２（ｏｘｄ）（ＣｌＯ＿４）＿２·Ｈ＿２Ｏ（３），Ｃｕ＿２（Ｍｅ）＿２－ｂＰｙ）＿２（ｏｘｄ）（ＮＯ＿３）＿２（４），ｂＰｙ表示２，２＇－联吡啶，Ｍｅ＿２－ｂｐｙ表示４，４＇－二甲基联吡啶，ｏｘｄ表示草酰二胺阴离子。经元素分析、ＩＲ、电子光谱、ＥＳＲ、磁化率及变温磁化率的测定，对上述各配合物进行了表征。配合物（１）和（３）的变温磁化率已测定，其数值用最小二乘法和从自旋哈密顿算符导出的磁方程拟合，求得交换积分Ｊ为－１．４８ｃｍ￣（－１）和－１．８２ｃｍ￣（－１），表明配合物中钴（Ⅱ）－钴（Ⅱ）离子及镍（Ⅱ）－镍（Ⅱ）离子之间仅有极弱的反铁磁自旋交换作用。     

二维纳米材料［Cd_xMg_（6－x）Al_2（OH）_（16）］~（2＋）［

用中温水热合成的方法，合成了类水滑石［Ｃｄ＿ｘＭｇ＿（６－ｘ）Ａｌ＿２（ＯＨ）＿（１６）］￣（２＋）［Ｓ·２Ｈ＿２Ｏ］￣（２－），用ＸＲＤ、ＦＴ－ＩＲ，ＤＴＡ─ＴＧ等手段进行了表征，讨论了它的热稳定性。     

Co（Ⅱ）、Ni（Ⅱ）与三聚硫氰酸的配合物及其衍生物的合成研究（Ⅱ）

本文用Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）与三聚硫氰酸配合物与邻二氨基苯反应，得到两个新的化合物，经ＩＲ、Ｕｖ、元素分析等表征研究，指认它们是Ｎａ＿３｛Ｍ（Ｃ＿３Ｎ＿３Ｓ＿３）［Ｐｈ（ＮＨ＿２）＿２］Ｃｌ＿２｝（Ｍ）─Ｃｏ、Ｎｉ）．     

Co（Ⅱ）、Ni（Ⅱ）、Zn（Ⅱ）与三聚硫氰酸的配合物及其衍生物的合成研究（Ⅰ）

本文用ＣｏＣｌ＿２·６Ｈ＿２Ｏ、ＮｉＣｌ＿２Ｈ＿２Ｏ、ＺｎＣｌ＿２·２Ｈ＿２Ｏ与Ｃ＿３Ｎ＿２Ｓ＿３Ｎａ＿３在（ＣＨ＿３）＿２ＳＯ溶剂中反应，得到产物Ⅰ、Ⅱ、Ⅲ；又用Ｃ＿５Ｈ＿５Ｎ与Ⅰ、Ⅱ、Ⅲ反应，得到产物Ⅳ、Ⅴ、Ⅵ。经元素分析、ＩＲ谱、ＵＶ谱表征研究，指认Ⅰ、Ⅱ、Ⅲ为Ｎａ＿３［Ｍ（ＣＨ＿３）＿２ＳＯ（Ｃ＿３Ｎ＿３Ｓ＿３）Ｃｌ＿２（Ｍ－Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ｚｎ（Ⅱ）；ⅣⅤ、Ⅵ为Ｎａ＿２［Ｍ（ＣＨ＿３）＿２ＳＯ（Ｃ＿３Ｎ＿３Ｓ＿３）（Ｃ＿５Ｈ＿５Ｎ）Ｃｌ］（Ｍ－Ｃｏ（Ⅱ）、Ｎｉ（Ⅱ）、Ｚｎ（Ⅱ））。     

关于方程x_（i）／d_（i）≡0（mod1）的解的个数和有限域上的对角方程

设Ｉ（ｄ＿１…，ｄ＿ｎ）代表方程，解的个数。作者得到了一个计算Ｉ（ｄ＿１，…，ｄ＿ｎ）的减缩定理：Ｉ（ｄ＿１，…，ｄ＿ｎ）＝Ｉ（ｗ＿１，…，ｗ＿ｎ），这里，…，。还得到了Ｉ（ｄ＿１，…，ｄ＿ｎ）的一个非平凡下界．这些结果在有限域的对角方程零点个数的研究中，有重要应用。     

（CdSe）m（ZnSe）n／ZnSe短周期量子阱的荧光光谱

对用原子层外延法生长的｛（ＺｎＳｅ）＿（７０）（ＺｎＳｅ：Ｔｅ）＿（２０）（Ｚｎｓｅ）＿８＋［（ＣｄＳｅ）＿１（Ｚｎｓｅ）＿３］＿７＋（ＺｎＳｅ）＿８（ＺｎＳｅ：Ｔｅ）＿（２０）（ＺｎＳｅ）＿（７０）｝×１短周期超晶格量子阱样品，在７７Ｋ进行了稳态和瞬态荧光光谱研究。在本征激发下，观察到在不同激发强度时荧光光谱有显著的区别，随着泵浦密度提高，荧光谱表现为绿带（Ｓ＿２）、蓝带（Ｓ＿１）和蓝锐线依次占优。利用时间分辩光谱测量了上述谱带的荧光产生时间和寿命，讨论了样品中激子的捕获和复合过程。认为上述荧光光谱对激发强度的依赖性，可能是束缚在势垒中Ｔｅ＿ｎ（ｎ≥２）原子簇和单Ｔｅ原子周围的激子态随激发功率提高而依次饱和的现象。     

M_3（CO）_9（μ_3─CO）（μ_3—S）（M＝Fe，Ru，Os）电子结

本文用ｓｃｃ—ＤＶ—ｘ。法计算了Ｆｅ＿３（ＣＯ）＿９（μ＿３─ＣＯ）（μ＿３─Ｓ），Ｒｕ＿３（ＣＯ）＿９（μ＿３─ＣＯ）（μ＿３─Ｓ）和Ｏｓ＿３（ＣＯ）＿９（μ＿３─ＣＯ）（μ＿３─Ｓ）的电子结构，结果表明，三个分子的分子轨道能级分布明显分成若干组，费米能级的高低为Ⅱ＞Ⅲ＞Ⅰ，三分子的ＨＯＭＯ和ＬＵＭＯ能级组主要为Ｍ─Ｃｂ，Ｍ─Ｓ和Ｍ─Ｍ特征键，金属参与成键和反键轨道的主要成份是ｄ轨道，并有比例较小的Ｐ轨道。三分子所带正电荷Ⅱ＜Ⅲ＜Ⅰ，与分子的电负性数据相一致，反馈π键的强度Ⅱ＜Ⅲ＜Ⅰ．在亲核反应中，亲核试剂首先与金属原子或端羰基的碳原子发生作用．     

［Fe（CN）_5H_2O］~（3－）还原［（NH_3）_5Co（OOCC_5

在μ＝０．１０ｍｏｌ·１￣（－１）（ＬｉＣｌＯ＿４）、ｐＨ＝８．０对不同温度下［Ｆｅ（ＣＮ）＿５Ｈ＿２Ｏ］和［（ＮＨ＿３）＿５Ｃｏ（ＯＯＣＣ＿５Ｈ＿４Ｎ）］￣（２＋）的内配位界电子转移反应进行了动力学研究。在２５℃，双核配合物［（ＮＨ＿３］＿５Ｃｏ（ＯＯＣＣ＿５Ｈ＿４Ｎ）Ｆｅ（ＣＮ）＿５］￣－的分子内电子转移速率常数为３．９×１０￣（－１），分子内电子转移过程的活化焓和活化熵分别为８９．５ｋＪ·ｍｏｌ￣（－１）和６．０Ｊ·ｍｏｌ￣（－１）·Ｋ￣（－１）最后对该反应的机理、速率常数和绝热性进行了讨论。     

方程x（t）＝—f（x（t），x（t—r＿1），（t—r＿2））非常数周期解的存在性

研究了方程ｘ（ｔ）＝─ｆ（ｘ（ｔ），ｘ（ｔ─ｒ＿１），（ｔ─ｒ＿２））（Ａ）非常数周期解的存在性。证明了在某些条件下，方程（Ａ）有以４ｒ＿１／（１＋４ｎ）（ｎ为非负整数）为周期的非常数振动的周期解。     

短波长In_xGa_（1－x）As_yP_（1－y）材料的LP－MOVPE生长

本文研究了用低压金属有机化学气相外延（ＬＰ－ＭＯＶＰＥ）技术，以三申基镓（ＴＭＧａ）、三甲基铟（ＴＭＩｎ）为Ⅲ族源，ＡｓＨ＿３和ＰＨ＿３为Ⅴ族源，在（１００）方向掺Ｓ的ｎ￣＋ＩｎＰ衬底上生长短波长Ｉｎ＿ｘＧａ＿（１－ｘ）Ａｓ＿ｙＰ＿（１－ｙ）材料的生长条件，并用双晶Ｘ射线衍射（ＤＣＤ）和光荧光（ＰＬ）对不同条件下生长的短波长Ｉｎ＿ｘＧａ＿（１－ｘ）Ａｓ＿ｙＰ＿（１－ｙ）材料进行了表征。     

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