稀土与3-苯基-5-(呋喃-2)吡唑啉二硫代甲酸配合物的制备和性质(英文)

在干燥的氮气氛保护下,首次合成了９种稀士与３苯基５（呋喃２）吡唑啉二硫代甲酸配合物ＲＥ（Ｓ２ＣＮＣ１３Ｈ１１ＮＯ）Ｃｌ２（ＲＥ＝Ｇｄ－Ｌｕ,Ｙ）．通过元素分析、电导测定、红外光谱、差热分析对其进行了表征,结果表明配体是通过二个硫原子和呋喃环上的一个氧原子与稀土配位的     

拖尾自由基在胶体中分布及在胶束中的定位

合成了一系列４－位不同链长的直链酰氧基－２，２，６，６－四甲基哌啶－１－氧自由基，测定了它们的电子自旋共振（ＥＳＲ）谱，研究了４－位取代基及溶剂极性对ＥＳＲ谱的影响．考察了拖尾哌啶氢氧自由基在表面活性剂形成的胶体溶液中胶束内的定位效应．     

甲基丙烯酸稀土与邻菲罗啉单氮氧化物配合物的合成,表征及荧光性质

本文合成了邻菲罗啉单氮氧化物与部分稀土甲基丙烯酸盐「ＲＥ（Ｌ２）３」（ＲＥ＝Ｌａ－Ｔｂ）的配合物「ＲＥ（Ｌ１）（Ｌ２）３」。通过元素分析，红外光谱，紫外光谱，核磁共振谱，摩尔电导和热重分析对该系列配合物进行了表征。并研究了Ｓｍ，Ｅｕ，Ｔｂ配合物的荧光性质。     

桥链冠醚卟啉与钴（II）,铜（II）的配位反应

用光度法测定了桥链冠醚卟啉与Ｃｏ＾２＋、Ｃｕ＾２＋配位反应的速率常数、活化能及热力学参数。结果表明：桥链冠醚卟啉与Ｃｏ＾２＋配位反应活化能Ｅａ较大，ΔＨ〉０；而与Ｃｕ＾２＋配位反应Ｅａ较小，且ΔＨ＝０；桥链冠醚钴卟啉的ＥＳＲ谱表明它具有载氧能力。     

稀土与间硝基苯甲酸和邻菲罗啉二元、三元固态配合物的合成及荧光光谱

采用乙醇－水溶液析出法合成了稀土离子ＲＥ３＋（Ｌａ３＋，Ｎｄ３＋，Ｇｄ３＋，Ｄｙ３＋，Ｙ３＋，Ｙｂ３＋）与间硝基苯甲酸（ＨＡ）和邻菲罗啉（ｐｈｅｎ）的二元及三元固态配合物．通过元素分析、热重分析证实配合物组成为ＮｄＡ３·３Ｈ２Ｏ，ＲＥＡ３·２Ｈ２Ｏ（ＲＥ＝Ｇｄ，Ｄｙ），ＲＥＡ３（ＲＥ＝Ｙｂ，Ｙ）和ＬａＡ３·ｐｈｅｎ．考察了配合物的红外光谱、紫外光谱、荧光光谱和溶解性．     

RE（NO3）3—Ala—H2O三元体系在25℃时的半微量相平衡研究

测定了ＲＥ（ＮＯ３）３－Ａｌａ－Ｈ２Ｏ（ＲＥ＝Ｓｍ，Ｇｄ，Ｅｒ）三元体系在２５℃时的溶解度和饱和溶液折光率，绘制了相应的溶解度图与饱和溶液折光率曲线。各体系的溶解度曲线与折光率曲线均由４支组成分别与ＲＥ（ＮＯ３）３．ｎＨ２Ｏ（ＲＥ＝Ｓｍ，Ｇｄ，ｎ＝６；ＲＥ＝Ｅｒ，ｎ＝５），ＲＥ（Ａｌａ）（ＮＯ３）３．Ｈ２Ｏ，ＲＥ（Ａｌａ）４（ＮＯ３）３．Ｈ２Ｏ和Ａｌａ的晶体相对应。     

稀土硝酸盐与L－精氨酸固体配合物的合成与表征

报道了合成的九种稀土硝酸盐与精氨酸的配合物，经化学分析和热重分析确定了其组成为ＲＥ（ＮＯ３）３（Ａｒｇ）２·４Ｈ２Ｏ（ＲＥ＝Ｌａ，Ｎｄ，Ｓｍ，Ｅｕ，Ｇｄ，Ｔｂ，Ｄｙ，Ｔｍ，Ｙ）．测定了配合物的红外光谱，并推测配体是通过羧基进行配位的     

RE（NO_3）_3－Ala－H_2O三无体系在25℃时的半微量相平衡研究

测定了ＲＥ（ＮＯ_３）_３－Ａｌａ－Ｈ_２Ｏ（ＲＥ＝Ｓｍ，Ｇｄ，Ｅｒ）三元体系在２５℃时的溶解度和饱和溶液折光率，绘制了相应的溶解度图与饱和溶液折光率曲线。各体系的溶解度曲线与折光率曲线均由４支组成，分别与ＲＥ（ＮＯ＿３）３．ｎＨ＿２Ｏ（ＲＥ＝Ｓｍ，Ｇｄ，ｎ＝６；ＲＥ＝Ｅｒ，ｎ＝５），ＲＥ（Ａｌａ）（ＮＯ＿３）３·Ｈ＿２Ｏ，ＲＥ（Ａｌａ）＿４（ＮＯ＿３）＿３·Ｈ＿２Ｏ和Ａｌａ的晶体相对应．     

甲醇介质中二(N,N─二乙基二硫代氨基甲酸)烷基黄原酸合钴(Ⅲ)与哌啶反应动力学和机理

本文用分光光度法研究了二（Ｎ，Ｎ－二乙基二硫代氨基甲酸）烷基黄原酸合钴（Ⅲ），Ｃ０（Ｓ＿２ＣＮＥｔ＿２）＿２（Ｓ＿２ＣＯＲ）（Ｒ＝Ｅ＿ｔ，ｎ－Ｐ＿ｒ）与哌啶在甲醇介质中的反应动力学。发现该反应对络合物为一级，对哌啶为正分数级。提出了先快速加成平衡，随后慢速杂化轨道转化质子转移和ＲＯＨ离去的反应机理，据此求出了２５－３５℃速控步骤的速率常数及２５℃的活化参数。反应速率常数顺序为Ｅｔ＞ｎ－Ｐ＿ｒ。并且较圆满地解释了所有实验事实。     

稀土—二苯甲酰甲烷配合物微晶的合成及荧光光谱

合成了稀土（ＲＥ）二苯甲酰甲烷（ＤＢＭ）配合物ＲＥ（ＤＢＭ）３·Ｈ２Ｏ（ＲＥ＝Ｓｍ、Ｅｕ、Ｔｂ、Ｄｙ、Ｐｒ、Ｎｄ、Ｇｄ、Ｙ）,用红外光谱、紫外光谱及差热热重谱对其进行了表征,用透射电镜观察了该配合物微晶尺寸,并研究了配合物在固态时的荧光光谱．结果表明该系列配合物微晶的尺寸在５０～２５０ｎｍ之间,在ＲＥ（ＤＢＭ）３·Ｈ２Ｏ（ＲＥ＝Ｓｍ、Ｅｕ）中可观察到较强的稀土离子的特征发射,而在ＲＥ（ＤＢＭ）３·Ｈ２Ｏ（ＲＥ＝Ｔｂ、Ｄｙ）中只能观察到配体自身发射     

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     

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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Brief Introduction to “Journal of Jilin University( Science Edition) ”

<正>"Journal of Jilin University(Science Edition)"is a comprehensive academic journal in the fields of science sponsored by Jilin University and administrated by the Ministry of Education of the Peoples Republic of China.The journal started publication in 1955.The original name at starting publication was"Journal of Natural Science of Northeast People University",which was changed into"Acta Scientiarum Naturalium Universitatis Jilinensis"in 1958 owing to the name change of the university.The present journal name has