磺化乙丙三元胶固体中离子相互作用的研究

合成了分别含Ｌｉ￣＋，Ｎａ￣＋，Ｋ￣＋和Ｍｇ￣（２＋），Ｃａ￣（２＋），Ｂａ￣（２＋）的６种乙丙三元胶（ＥＰＤＭ）磺酸盐离聚体，溶解性试验反映出固体中存在聚集引起的离子交联，红外光谱表明金属离子与的相互作用为Ｌｉ￣＋＞Ｎａ￣＋＞Ｋ￣＋和Ｍｇ￣（２＋）＞Ｃａ￣（２＋）＞Ｂａ￣（２＋）及Ｍ￣（２＋）＞Ｍ￣＋，通过动态力学分析，讨论了离聚体中离子相互作用对离子聚集和橡胶平台区温度范围的影响规律。     

N－烃基－N＇－（氨基对苯磺酸钠）硫脲的合成及表征

本文以对肼基苯磺酸和烃基异硫氰酸酯为原料，合成了１１个未见诸文献报道的化合物Ｎ－烃基－Ｎ’－（氨基对苯磺酸钠）硫脲，经元素分析、红外和核磁共振等数据，确定了其结构。测定了其在不同溶剂中的溶解情况。初步分析试验表明其中Ｎ－烯丙基－Ｎ＇－（氨基对苯磺酸钠）硫脲可作为Ｃｕ￣（２＋）、Ａｇ￣＋离了的鉴定试剂．     

N－烃基－N＇－（氨基对苯磺酸钠）硫脲的合成及表征

本文以对肼基苯磺酸和烃基异硫氰酸酯为原料，合成了１１个未见诸文献报道的化合物Ｎ－烃基－Ｎ’－（氨基对苯磺酸钠）硫脲，经元素分析、红外和核磁共振等数据，确定了其结构。测定了其在不同溶剂中的溶解情况。初步分析试验表明其中Ｎ－烯丙基－Ｎ＇－（氨基对苯磺酸钠）硫脲可作为Ｃｕ￣（２＋）、Ａｇ￣＋离了的鉴定试剂．     

吡唑－3，5－二羧酸稀土配合物的合成及表征

报道８种稀土－吡唑－３，５－二羧酸（Ｐ２ｏＡ）配合物的合成，通过元素分析、红外、紫光光谱、差热对配合物的结构进行了表征。配合物的通式为：Ｌｎ＿２Ｌ＿３·ｕＨ＿２Ｏ（Ｌｎ￣（３＋）＝Ｌａ￣（３＋）、Ｐｒ￣（３＋）、Ｎｄ￣（３＋）、Ｓｍ￣（３＋）、Ｅｕ￣（３＋）、Ｔｂ￣（３＋）、Ｈｏ￣（３＋）、Ｙ￣（３＋）；Ｌ￣（２－）＝Ｐ２ＤＡ￣（２－）；ｎ＝６～１１）。     

三价稀土（Eu,Tb）离子在对碘苯甲酸钡中的发光

二价钴、镍、锰等过渡金属离子对碘苯甲酸化合物的红外和紫外光谱、磁性、Ｘ射线分析以及热谱性质已有较详细的报道￣［１～４］，但有关对碘苯甲酸稀土化合物的研究尚未见诸于文献。本文合成了三价铕和铽的对碘苯甲酸化合物以及Ｅｕ￣（３＋）和Ｔｂ￣（３＋）掺杂的对碘苯甲酸钡系列固体荧光样品，测量了它们的荧光激发和发射光谱，研究了Ｅｕ￣（３＋）和Ｔｂ￣（３＋）离子含量与样品发光强度的关系。     

RE（BenA）4Rh6G三元配合物的合成及其发光

研究了ＲＥ（ＢｅｎＡ）_１Ｒｈ６Ｇ三元配合物的最佳合成条件，（ＲＥ＝Ｅｕ￣（３＋）或Ｔｂ￣（３＋），ＢｅｎＡ：苯甲酸，Ｒｈ６Ｇ：Ｒｈｏｄａｍｉｎｅ６Ｇ）．确定了它们的化学组成为ＲＥ￣（３＋）：ＢｅｎＡ：Ｒｈ６Ｇ＝１：４：１．用ＤＴＡ和ＴＧ测定了它们的热分解行为，用ＩＲ光谱确认了ＲＥ￣（３＋）与ＢｅｎＡ配体间形成配位键。ＵＶ吸收光谱和电导法测定结果表明，Ｅｕ￣（３＋）和Ｔｂ￣（３＋）两种配合物为１：１型离子缔合物。与相同条件下合成的Ｌａ￣（３＋），Ｙ￣（３＋）三元配合物一样，在３６５ｎｍ光激发下，它们的有机溶液均可观察到强烈的荧光，测得Ｅｕ￣（３＋）和Ｔｂ￣（３＋）的固态三元配合物荧光光谱，其最大发射峰分别为６３５和６１３ｎｍ．根据固体荧光光谱结果，看不到稀土金属离子对立的贡献。由此看来，在这两种含不同稀土元素的固体三元配合物体系中，显示为ｌ￣＊→Ｌ发光特征。     

杂多阴离子柱撑水滑石类层柱状化合物的合成与表征

以硝酸根型水滑石做交换前驱体，采用离子交换法合成了过渡金属离子三元取代硅钨杂多阴离子柱撑水滑石Ｍ＿２Ａｌ（ＯＨ）＿６－ＳｉＷ＿９Ｚ＿３（Ｈ＿２Ｏ）＿３Ｏ＿（３７）（Ｍ＝Ｍｇ￣（２＋），Ｚｎ￣（２＋），Ｎｉ￣（２＋），Ｚ＝Ｃｕ￣（２＋），Ｃｏ￣（２＋））．用元素分析、ＸＲＤ、ＩＲ、ＵＶ－ＤＲＳ和ＤＴＡ等手段对产物的组成和结构进行了表征。结果表明，杂多阴离子引入水滑石层间后，水滑石的层间距从０．９２ｎｍ增大到１．４７ｎｍ；提高了柱撑材料的热稳定性，随层的组成不同热稳定性顺序为：Ｍｇ＿２Ａｌ≥Ｎｉ＿２Ａ１＞Ｚｎ＿２Ａｌ；随柱的组成不同热稳定性顺序为：ＳｉＷ＿９Ｃｏ＿３＞ＳｉＷ＿９Ｃｕ＿３．处于层中的杂多阴离子在层的脱羟基温度以下均能保持良好的Ｋｅｇｇｉｎ结构。     

用新试剂N─邻甲苯基─N＇─（氨基对苯磺酸钠）硫脲鉴定Cu~（2＋）和Hg~（

本文通过对新试剂Ｎ－邻甲苯基－Ｎ＇－（氨基对苯成酸钠）硫脲分析性能的研究，发现其在氨水介质中可和Ｃｕ￣（２＋）、Ｈｇ（２＋）发生特征性反应。通过寻找适宜的反应条件，确立了Ｃｕ￣（２＋）和Ｈｇ￣（２＋）的鉴定方法。该方法用于合成样品和标准试样的分析，均获得满意的结果。因此，该试剂可作为Ｃｕ￣（２＋）的新鉴定试剂（检出限量为０．０１５μｇ），最低浓度为０．５μｇ／ｍｌ）和Ｈｇ￣（２＋）的新鉴定试剂检出限量为０．０７５μｇ，最低浓度为２．５μｇ／ｍｌ）。     

激光光散射及荧光光谱法研究金属离子对牛磺胆酸钠胶团性质的影响

采用激光光散射的方法，研究了Ｃａ￣（２＋）、Ｌａ￣（３＋）、Ｅｕ￣（３＋）存在下，ＮａＴＣ胶团及其与胆固醇、卵磷脂形成的混合胶团平均流体力学半径变化，发现金属离子能使胶团长大，并对胶团的结构及对胆固醇的增溶性有影响。以芘为荧光探针，研究了Ｃａ￣（２＋）、Ｌａ￣（３＋）离子对胶团内部微极性的影响，及通过Ｅｕ￣（３＋）的荧光光谱表征其配位场特征，证明金属离子与胆盐胶团间相互作用发生在胶团的表面。     

钴（Ⅲ）配合物取代反应的动力学研究

用分光光度法研究了在ｐＨ为８．５７的３０％（ｖ／ｖ）乙醇溶液中，甘氨酸与二羟基二邻菲罗琳钴（Ⅲ）配合物取代反应的动力学。提出其反应机理为交换高解机理，根据静态平衡，推导其反应速度公式，并求得其反应的△Ｈ￣＋＝８２．８３ｋＪ·ｍｏｌ￣（－１），△Ｓ￣＋＝７９．４２Ｊ·ｍｏｌ￣（－１）·Ｋ￣（－１）。     

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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