同核双卟啉金属配合物的合成及其对细胞色素P450模拟

合成了Ｆｅ（Ⅲ）－Ｆｅ（Ⅲ），Ｍｎ（Ⅲ）－Ｍｎ（Ⅲ），Ｃｏ（Ⅱ）－Ｃｏ（Ⅱ）３种同核双卟啉金属配合物，用元素分析、紫外可见光谱、红外光谱、１Ｈ－核磁共振谱和顺磁共振谱等进行表征．研究了这些同核双卟啉金属配合物模拟细胞色素Ｐ４５０催化环己烷羟化作用，实验结果表明，同核双卟啉金属配合物具有较高的催化活性，其催化活性顺序为：Ｆｅ（Ⅲ）－Ｆｅ（Ⅲ）＞Ｍｎ（Ⅲ）－Ｍｎ（Ⅲ）＞Ｃｏ（Ⅱ）－Ｃｏ（Ⅱ）     

金属卟啉催化性能与金属原子电子构型关系

合成了三种具有不同电子排布的金属卟啉，ＴＰＰＦｅ（Ⅲ）Ｃｌ，ＴＰＰＣｏ（Ⅱ）和［ＴＰＰＦｅ（Ⅲ）］２Ｏ，并用它们模拟细胞色素Ｐ－４５０单充氧酶在温和条件下催化环己烷的氧化反应。结果表明，金属卟啉的仿生催化性能与它们的磁场性质有关。对ＰｈＩＯ氧化环己烷的反应，具有低自旋排布的ＴＰＰＣｏ（Ⅱ）和由于反铁磁耦合而呈现抗磁性的［ＴＰＰＦｅ（Ⅲ）］２Ｏ没有催化性能，而高自旋排布的ＴＰＰＦｅ（Ⅲ）Ｃｌ具有催化     

铁卟啉的空间效应对其催化羟基化反应性能的影响

研究了ＴＰＰＦｅＣｌ和６种具有不同空间结构的氯合、中位四（邻烷基苯基）卟吩合铁（Ⅲ）［Ｔ（ｏ－Ｒ）ＰＰＦｅＣｌ，Ｒ＝Ｍｅ、ＥＴ、ｎ－Ｐｒ、ｎ－Ｂｕ、ｉ－Ｐｒ和ｔ－Ｂｕ］催化亚碘酰苯使环己烷羟基化反应。发现邻位烷基取代的铁卟啉的催化速率和催化产率都比ＴＰＰＦｅＣｌ的大，这７种铁卟啉的催化速率和催化产率（％）大小顺序分别为［Ｔ（ｏ－Ｒ）ＰＰＦｅＣｌ，Ｒ＝］ｉ－ｐｒ＞Ｅｔ＞ｔ－Ｂｕ＞ｎ－ｐｒ＞Ｍｅ＞ｎ－Ｂｕ＞ＴＰＰＦｅＣｌ和ｉ－Ｐｒ（５８）＞Ｅｔ（５７）＞ｎ－Ｐｒ（５２）＞Ｍｅ（５０）＞ｎ－Ｂｕ（４８）＞ｔ－Ｂｕ（４６）＞ＴＰＰＦｅＣｌ（３５），根据研究结果，认为邻位烷基的空间作用可能加速了铁卟啉与亚碘酰苯加成中间体中碘—氧键断裂，助进了高价铁氧酰活性中间体形成，提高了催化速率和催化产率。     

FeⅡ-TPPS_3配合物光谱电化学研究

用吸收光谱、单扫描极谱及光谱电化学方法研究Ｆｅ２＋三磺基四苯基卟啉（简写为ＴＰＰＳ３）的水溶性配合物在ｐＨ～４．０的ＨＡｃ－ＮａＡｃ缓冲体系中的性质。实验证明Ｆｅ２＋与ＴＰＰＳ３在９０℃下加热８０ｍｉｎ可以反应完全,配合物主要以ＴＰＰＳ３二聚体和ＴｅⅢ－ＴＰＰＳ３单体的形态存在于该介质中,Ｈ＋参与了配合物的电极反应,Ｆｅ－ＴＰＰＳ３体系中配合物的组成比为１∶１,ＦｅⅢ－ＴＰＰＳ３在电极上还原为ＦｅⅡ－ＴＰＰＳ２为不可逆过程。     

尾式金属卟啉配合物的研究(Ⅷ)对-苯并咪唑基尾式卟啉锰(Ⅲ)、钴(Ⅱ)配合物的合成及催化性质

利用溴代烷与硫醇间极易反应的特性，制备了８种尾端基团为苯并咪唑基的对－尾式卟啉锰（Ⅲ）、钴（Ⅱ）配合物并经元素分析、ＦＡＢ－ＭＳ、ＵＶ－ｖｉｓｉｂｌｅ、ＩＲ等谱进行了表征；研究了亚碘酰苯存在下尾式卟啉配合物对环己烷氧化的催化作用，初步探讨了催化反应机理．结果表明，尾式卟啉配合物具有比ＭｎＴＰＰＣｌ及ＣｏＴＰＰ较高的催化活性，这可能与催化过程中尾端基团参与的分子间轴向配位作用有关     

尾式金属卟啉配合物的研究：II.新型尾式金属卟啉配合物…

分别研究了５－对［４－（间－吡啶氧基）丁氧基］苯基１０，１５，２０－三苯基卟啉的Ｆｅ（Ⅱ）和Ｃｏ（Ⅱ）配合物的催化或载氧功能，以合成的金属卟啉、抗坏血酸和底物所组成的体系作为细胞色素Ｐ４５０单加氧酶的模拟体系，研究了在温和条件下对环已烷转变为环已酮、环乙醇的催化作用，测定了这些体系的吸氧能力和羟化产物的产率。结果表明，尾式铁卟啉配合物Ｆｅ（Ⅱ）ＰｙＢＰＴＰＰＣ１比其他简单相应铁卟啉配合物更为有效。     

偏最小二乘（PLS）分光光度法同时测定铁钴铜锌

本文研究了高灵敏度显色剂ｍｅｓｏ－四（４－磺酸苯基）卟啉（ＴＰＰＳ４）与Ｆｅ（Ⅲ）、Ｃｏ（Ⅱ）、Ｃｕ（Ⅱ）、Ｚｎ（Ⅱ）共显色条件以及应用偏最小二乘（ＰＬＳ）法同时测定四组份的方法，获得满意的结果．本文还定义了未知样品与标准样之间的相关系数Ｑｒ，通过Ｑｒ值的大小预报未知样测试结果的准确性．     

铁卟啉的空间效应对其催化羧基化反应性能的影响

研究了ＴＰＰＦｅＣｌ和６种具有不同空间结构的氧合、中位四（邻烷基苯基）卟吩合铁（Ⅲ）［Ｔ（ＯＲ）ＰＰＦｅＣｌ，Ｒ＝ｍＥ，ｅＴ，ｎ－Ｐｒ，ｎ－Ｂｕ，ｉ－Ｐｒ和ｔ－Ｂｕ］催化亚碘酰苯使己烷羟基化反应发现邻位位烷基取代的铁卟啉的催化速率和催化产率都比ＴＰＰＦｅＣｌ的大。     

尾式金属卟啉配合物的研究（Ⅶ）：邻—苯并唑类杂环基尾式…

合成并表征子氯化｛５－（邻－（４－（２－巯基苯并咪唑基）正丁氧基）苯基－１０，１５，２０－三（对－甲基）苯基卟啉铁｝（ｏ－Ｂｚｉｍ ＴＭＰＰＦｅ（Ⅲ）Ｃｌ），氯化｛５－（邻－（４－２－硫基苯半噻唑基）正丁氧基）苯基－１０，１５，２０－三（对－甲基）苯基卟啉铁｝（ｏ－ＢｚＴａＴＭＰＰＦｅ（Ⅲ）Ｃｌ），氯化｛５－（邻－（４－（２－巯基苯并恶唑基）正丁氧基）苯基－１０，１５，２０－三（对－甲基）苯基卟啉     

Fe（Ⅲ）—TPPS3配合物光谱电化学研究

用吸收光谱，单扫描极谱及光谱电化学方法研究了Ｆｅ６２＋三磺基四苯基卟啉的水溶性配合物在ｐＨ－４．０的ＨＡｃ－ＮａＡｃ缓冲体系中的性质。实验证明Ｆｅ＾２＋与ＴＰＰＳ３在９０℃下加热８０ｍｉｎ可以反应完全，配合物主要以ＴＰＰＳ３二聚体和Ｔｅ－ＴＰＰＳ３单体的开矿存在于该介质中，Ｈ＾＝参与了配合物的电极反应，Ｆｅ－ＴＰＰＳ３体系中配合物的组成比为１：１，Ｆｅ－ＴＰＰＳ３在电极上不原为Ｆｅ－ＴＰＰＳ２为可     

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