醚链桥接缩氨脲类化合物的合成

链状冠醚二芳醛在酸性条件下与氨基脲反应，合成了链状冠醚二芳醛缩氨脲类化合物.经由IR，MS和元素分析对合成的新产物的结构进行了鉴定.     

开链冠醚衍生物的合成

链状冠醚e二芳醛在酸性条件下与氨基硫脲反应,合成了链状冠醚二芳醛缩氨硫脲类化合物,产物由IR,MS和元素分析鉴定了其结构.     

含开链冠醚基缩氨基硫脲类化合物的合成

链状冠醚二芳醛在酸性条件下与氨基硫脲反应，合成了链状冠醚二芳醛缩氨硫脲类化合物．产物由IR、MS和元素分析鉴定了其结构．     

冠醚化合物的合成：ⅩⅩⅨ.液晶冠的合成及其作为气相…

合成了一种新型含端烯基芳羧酸脂类液晶冠醚；对其结构进行了ＩＲ，ＵＶ，ＨＮＭＲ，ＭＳ等波谱分析，所取得的分析数据与预期结构相符。将液晶冠醚单体和硅氢加成，合成了相应用于气相色谱固定液，显示出集高分子液晶和高分子冠醚于一体的双重色谱性能。是一类很有发展前景的新型色谱固液。     

双端烯丙基冠醚的合成

用３，５－二叔丁基二苯并－１４－冠－４双羟基冠醚及３－正十五烷基二苯并－１４－冠－４双羟基冠的顺式和反式异构体，分别与溴丙烯反应，合成了４种新的双端烯丙基冠醚，通过红外光谱，核磁共振谱，质谱和元素分析确定了它们的结构。     

二苯型[16[和[18[环系氮杂支链套索冠醚的合成

以氢氧化钠为缩合剂，２，２’－二（邻－羟基苯氧基）丙烷分别与Ｎ－对甲苯基二乙醇胺二对甲苯磺酸酯，Ｎ－对甲苯磺酸基二乙醇胺二对甲苯磺酸酯反应生成二苯型」１６「环系氮杂冠醚化合物．２。在过量苯酚存在下，用４０％氢溴酸去对甲苯磺酸基得到相应的亚胺型氮杂冠醚．２，２‘－二（邻－羟基苯氧基）乙醚分别与及Ｎ－苯基二乙醇胺二对甲苯碘酸酯缩合得到二苯型「１８」环系氮杂冠醚化合物。     

一种新型硫杂杯[4]芳烃冠醚衍生物的合成与配合性能

在普通杯芳烃中引入硫、氮原子可以改善普通杯芳烃的配合性能.在弱酸的催化下,使用硫杂杯[4]芳烃四酰肼衍生物3与芳醛衍生物4反应, 高产率地合成了新型的含酰胺和席夫碱单元的硫杂杯[4]芳烃冠醚衍生物5,所合成的新化合物的结构经1H NMR、元素分析、ESI-MS等证实.同时探讨了新型硫杂杯[4]芳烃衍生物5与系列α-氨基酸的配合性能,结果表明所合成的硫杂杯芳烃冠醚对氨基酸分子表现出有效的配合能力和选择性.     

杯芳冠醚的产生发展及应用

综述了杯芳冠醚的产生、发展及应用研究的新进展,展望了它的工业应用前景。     

氮杂冠醚的NMR研究

测试了七种所合成的N,N′-二取代二氯杂冠醚和N,N′,N″-三取代三氯杂冠醚的H、~(13)CNMR谱,着重讨论了其R基谱线的归属,R基上氢属于ABCD系统,与R上酰胺基氢峰重叠在一起,难以辩认,考察重水交换后谱图的变化,用经验计算、计算机模拟科氢化学位移(δ),在此基础上用二维碳氢相关技术得R基碳δ,并归属氮杂冠醚其它碳、氢δ,探讨了氮杂冠醚R基上酰胺基的动态行为。     

酰基和茚满酮型双苯并冠醚的合成

以多聚磷酸（ＰＰＡ）为催化剂和溶剂，合成了卤代乙酰基二苯并冠醚（Ａ，Ｂ，Ｃ）和茚满酮型二苯并冠醚（Ｄ，Ｅ，Ｆ）．这６种产物均由ＩＲ．Ｖ，ＭＳ．１３Ｃ—ＮＭＲ和元素分析鉴定得到证实．     

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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