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     

苯基氮杂-15-冠-5-八钼多酸钠超分子配合物的结构与热分解

本文对新型超分子配合物［Ｎａ（ＮＰｈ）１５Ｃ５（Ｅｔ２Ｏ）］２Ｎａ２Ｍｏ８Ｏ２６进行了Ｘ射线四园衍射测定,该晶体属单斜晶系,空间群为Ｐ２１／ｃ,ａ＝１７８０３（４）,ｂ＝１３６７４（３）,ｃ＝１４６１０（３）,β＝１１２３３（２）°,Ｖ＝３２９０（１）ｎｍ３,Ｍｒ＝２０２１３,Ｄｃ＝２１４ｇ／ｃｍ３,μ＝１７１ｍｍ－１,Ｆ（０００）＝２０７９６３,Ｒ＝００２５６和Ｒｗ＝００２９５,并联系差热热重分析和１ＨＮＭＲ实验,讨论了配合物的热分解过程．     

双核锰配合物的合成,表征和性质

报道了对称的八齿（Ｎ６Ｏ２型）双核配体Ｎ，Ｎ，Ｎ′，Ｎ′－四（２′－苯并咪唑甲基）－１，４－二乙氨基乙二醚（ＥＧＴＢ）及两种含锰（Ⅱ）双核配合物：（Ｍｎ２ＥＧＴＢ（ＯＡｃ）２）（ＢＰｈ２）．３Ｈ２Ｏ（Ｉ），（Ｍｎ２ＥＧＴＢ（ＯＡｃ）Ｃｌ）Ｃｌ２．２ＣＨ３ＯＨ．Ｈ２Ｏ（Ⅱ），对（Ｉ），（Ⅱ）进行了＾１ＨＮＭＲ，ＵＶ－Ｖｉｓ，摩尔电导，中远红外，ＥＳＴ和循环伏安研究，初步推测配合物（Ｉ）和（Ⅱ）分别具     

SOD模型化合物：苯并咪唑桥连双核铜（II）的氨三乙…

合成了一个苯并咪唑桥连的双核铜（Ⅱ）配合物，Ｎａ３［Ｃｕ２（ＮＴＡ）２ｂＺｉｍ］·１０Ｈ２Ｏ（ＮＴＡ为三乙酸三价负离子，Ｂｚｉｍ为苯并咪唑负离子），并用元素分析，摩尔电导，ＵＶ／ＶＩＳ，ＩＲ，ＥＳＲ谱，进行了表征。用Ｘ－射线单晶衍射法测定了配合物的晶体结构，它属于三斜晶系，Ｐ－↓１空间群，晶胞参数ａ＝１．０４２６（７）ｎｍ，ｂ＝１．２０７４（５）ｎｍ，ｃ＝１．４６８０（２）ｎｍ，ａ＝７３．６２（３     

稀土与对-茴香酸配合物的合成与性质

本文合成了通式为ＲＥＬ３（ＲＥ３＋＝Ｐｒ３＋、Ｓｍ３＋、Ｔｂ３＋,,Ｌ＝对茴香酸根）的二元配合物．用元素分析、电导、ＩＲ、ＵＶ、ＴＧＤＴＡ等对其结构和性质进行了表征．该类配合物属桥式双齿配位     

钯（Ⅱ）—核苷酸—芳环配体三元混配合物的稳定性研究

用ｐＨ电位滴定法测定了钯（Ⅱ）的二元配合物ｐｄ（ＵＴＰ）（２－）、ｐｄ（Ｔｒｐ）＋和三元混配合物ｐｄ（Ａ）（ＵＴＰ）（ｎ－）（Ａ＝Ｐｈｅｎ，Ｂｐｙ和Ｔｒｐ；ｎ＝２或３）在４０％（Ｖ／Ｖ）二烷—水介质中（Ｉ＝０．１，ＫＮＯ３；２５℃）的稳定常数。用△ｌｇＫ（ｐｄ）比较了二元和三元混配合物的稳定性差异，认为三元混配合物稳定性的增加可归因子π—酸—π—碱之间的合作效应和分子内芳环配体的堆积作用。后者和参与堆积的芳环大小一致，即稳定性ｐｄ（ｐｈｅｎ）（ＵＴＰ）（２－）＞ｐｄ（Ｂｐｙ）（ＵＴＰ）（２－）＞ｐｄ（Ｔｒｐ）（ＵＴＰ）（３－）。     

RE（Met）（NO3）3.H2O（RE=Er,Yb,Y）固体配合物的研究

水相中制得三个硝酸稀土盐与蛋氨酸的配合物．通过化学分析、元素分析、摩尔电导、红外分析、紫外光谱、ＴＧ－ＤＴＧ及Ｘ－射线粉末衍射等方法研究了这些配合物的一些物理和化学性质．确定其通式为ＲＥ（Ｍｅｔ）（ＮＯ３）３·Ｈ２Ｏ（ＲＥ＝Ｅｒ，Ｙｂ，Ｙ；Ｍｅｔ＝ＤＬ－α－Ｍｅｔｈｉｏｎｉｎｅ）     

氯化稀土与苯并咪唑配合物的合成及生物活性

制备了 ３种稀土（Ｌａ,Ｐｒ,Ｎｄ）氯化物与苯并咪唑的配合物,用化学分析、元素分析确定其组成为 ＲＥ（Ｂｉｍ）２· ＨＣｌ· ４Ｈ２Ｏ（Ｂｉｍ为苯并咪唑）。通 ＩＲ,ＵＶ,电导,Ｘ－粉晶衍射,ＴＧＡ－ＤＴＡ对配合物进行了表征,并做了它们对土壤微生物促生长和抑菌试验。     

五六硝酸根合稀土(Ⅲ)酸2-[2-(3-硝基-4-甲氧基苯基)乙烯基]-1-甲基吡啶配合物的合成及性质研究

合成了通式为（Ｃ１５Ｈ１５Ｎ２Ｏ３）ｘＲＥ（ＮＯ３）ｙ（Ｈ２Ｏ）ｚ（当ＲＥ＝Ｌａ～Ｐｒ时，ｘ＝３，ｙ＝６，ｚ＝０；ＲＥ＝Ｎｄ时，ｘ＝２，ｙ＝５，ｚ＝１；ＲＥ＝Ｓｍ～Ｌｕ，Ｙ时，ｘ＝２，ｙ＝５，ｚ＝０）的一系列１５种标题配合物．通过元素分析，ＩＲ，ＵＶ，１ＨＮＭＲ，ＴＧ－ＤＴＡ，摩尔电导和Ｘ射线粉末衍射分析等对配合物的性质进行了表征．认为可能生成包含一分子水的１１配位钕配合物的原因在于抗衡阳离子的空间效应，使其与络阴离子间的ｖａｎｄｅｒＷａａｌｓ力增强的结果     

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。     

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.     

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     

Journal of Donghua University ( English Edition) Contents of Volume 31

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