三水合三氯三甘氨酸镱的晶体结构

为了研究稀土甘氨酸的基本性质,在水溶液中合成了「Ｙｂ（Ｇｌｙ）３（Ｈ２Ｏ）２」Ｃｌ３．Ｈ２Ｏ化合物,缓慢挥发水溶液（ｐＨ＝４～５）得到其单晶。研究了配合物的红外光谱和晶体结构,结果表明,晶体属正交晶系,空间群Ｐ２１２１２１２１。晶胞参数：ａ＝０．４７４９２（９）ｎｍ,ｂ＝１．１９１７（２）ｎｍ,ｃ＝３．０７１６（６）ｎｍ,Ｖ＝１．７３８４（４）ｎｍ＾３,Ｚ＝４,Ｄｃ＝２．１３５ｇ／ｃｍ＾３。晶体是     

钌(Ⅲ)-钼酸盐-乙基罗丹明B-PVA体系缔合显色反应研究

在聚乙烯醇存在下,钌与钼酸盐和乙基罗丹明Ｂ（ＥＲＢ）形成有色离子缔合物。最佳反应条件为「ＨＣｌＯ４」＝１．２ｍｏｌ．Ｌ＾－１,「ＭｏＯ＾２－４」＝６．８＊１０＾－４ｍｏｌ．Ｌ＾－１,「ＥＲＢ」＝３．２＊１０＾－５ｍｏｌ．Ｌ＾－１,ｗ（ＰＶＡ）＝０．０８％。缔合物的最大吸收位于５７５ｎｍ,表观摩尔吸光系数ε＝２．３２＊１０＾６Ｌ．ｍｏｌ＾－１．ｃｍ＾－１,钌量在０－２４μｇ．Ｌ＾－１范围内服从比耳定     

O（^1D）与CF2HC1的反应研究

研究了ＣＦ２ＨＣ１－Ｏ３体系在２５３．７ｎｍ紫外学照射下所引发的Ｏ（＾１Ｄ）与ＣＦ２ＨＣ１的反应。Ｏ（＾１Ｄ）与ＣＦ２ＨＣ１的反应最终产物为ＣＦ２Ｏ、ＨＣ１。对Ｏ（＾３Ｐ）与ＣＦ２ＨＣ１的反应可能性、Ｏ（Ｔ＾１Ｄ）与ＣＦ２ＨＣ１的反应机理、外加气体对反应的影响等方面进行了讨论。     

钨酸盐——碱性染料——聚乙烯醇高灵敏光度法测定痕量锡 …

报告一类光度法测定纳克量锡的新方法,在聚乙烯醇（ＰＶＡ）存在下,锡（Ⅳ）与钨酸盐可分别和碱性染料罗丹明Ｂ（ＲＢ）,丁基罗丹明Ｂ（ＢＲＢ）,耐尔蓝（ＮＢ）反应,形成离子缔合物,缔合物的最大吸收分别位于５８０ｎｍ（ＲＢ）,５６５ｎｍ（ＢＲＢ）和５８０ｎｍ（ＮＢ）,表观摩尔吸光系数ε值分别为３．２３＊１０＾７Ｌ．ｍｏｌ＾－１（ＲＢ）,２．５４＊１０＾７Ｌ．ｍｏｌ＾－１．ｃｍ＾－１（ＢＲＢ）和２．９５＊１     

Ag（I）—QARH络合物在胶束溶液中的光度性质

在ｐＨ５．０的ＨＯＡｃ－ＮａＯＡｃ缓冲溶液中，当有０．１０％ＳＬＳ存在时，Ａｇ（Ｉ）与ＱＡＲＨ形成１：１络合物，λｍａｘ为５３５ｎｍ，ε为１．０５×１０＾５Ｌ·ｍｏｌ＾－１·ｃｍ＾－１，Ａｇ（Ｉ）含量在０．００５￣１．００μｇ／ｍＬ范围内服从Ｂｅｅｒ定律，稳定常数为１．７８×１０＾１５。所提出的方法用于精铜矿中微量银的测定，结果满意。     

Na24P2W22O83：Eu荧光体的合成及其发光特性

本文用固相反应法合成了参杂Ｓｕ＾２＋的Ｎａ２４Ｐ２Ｗ２２Ｏ８３荧光体，测定其等离子发射谱，Ｘ射线粉末衍射，红外光谱，激光发光谱和发射光谱。。结果表明，Ｎａ２４Ｐ２Ｗ２２Ｏ８３：Ｅｕ属正交晶系，其点阵常数为ａ＝１．４７４５ｎｍ，；ｂ＝１．１９３３ｎｍ，ｃ＝１．１１９ｎｍ，ｚ＝２，属Ｐｘ１ｚ１ｚ２（ＮＯ．１９）空间群，探讨了掺杂Ｅｕ＾３＋离子后荧光体的发光特性。     

碱土金属邻苯二甲酸氢盐的振动光谱

测定了碱土金属邻苯二甲酸氢盐的晶体结构，Ｃａ（Ｃ８Ｈ５Ｏ４）２．２Ｈ２Ｏ为正交晶系，属Ｃ２ｖ＾７－Ｐｍｎ２１（Ｎｏ．３１）空间群，晶胞参数为α＝２．７４８２，ｂ＝０．９４２５，ｃ＝０．６９２６ｎｍ，Ｚ＝４；Ｓｒ（Ｃ８Ｈ５Ｏ４）２．２Ｈ２Ｏ是正交晶系，属Ｃ２ｖ＾１＾２－Ｃｍｃ２１（Ｎｏ．３６）空间群，晶胞参数为α＝２．８４６５，ｂ＝０．８７９，ｃ＝０．６９８０ｎｍ，Ｚ＝４，Ｂａ（Ｃ８Ｈ５Ｏ４）２．Ｈ     

应用TEM／EDAX研究粘土矿物的结构和成份特征

利用ＴＥＭ／ＥＤＡＸ技术对粘土矿物作超显微结构观察和微区成分测定，表明蒙脱石，伊利石，高岭石和绿泥石在（００１）方向的晶面间路为１．３ｎｍ，１ｎｍ，０．７ｎｍ和１．４ｎｍ，且有明显的晶格像转化，其主要转化类型有：蒙脱石→伊利石，高岭石→绿泥石，伊利石→绿泥石和伊利石→高岭石。在转化过程中产生的ＣＯ２，Ｈ＾＋和Ｈ２Ｏ会降低孔隙水ｐＨ，促进烃类运移和储层中次生孔隙形成。     

N－间甲氧基苯基亚氨基二乙酸合铜（Ⅱ）二水化合物的晶体与分子结构

Ｎ－间甲氧基苯基亚胺基二乙酸合铜（Ⅱ）二水化合物［Ｃｕ（ＣＨ２ＣＯＯ）２ＮＣ６Ｈ４ＯＣＨ３］·２Ｈ２Ｏ属正交晶系，空间群Ｐｂｃａ，ａ＝１．０７２５（３），ｂ＝１．０８５１（４），ｃ＝２．１８２７（５）ｎｍ，ｖ＝２．５４０（２）ｎｍ３，Ｚ＝８，Ｍｒ＝３３６．８，Ｄｘ＝１．７６ｇｃｍ－３，μ＝１８．１ｍｍ－１，Ｆ（０００）＝１３７６。结构由直接法解出，偏离因子Ｒ＝０．０７８。Ｃｕ（Ⅱ）离子与亚氨基二乙酸分子中一个氮原子、两个水分子氧原子和两个羧基氧原子配位形成一变形四方单锥构型。Ｃｕ（Ⅱ）离子到四方单锥顶点Ｏ（７）原子（水２）的键长为２．２７９×１０－１（４）ｎｍ，长于配位基平面内Ｃｕ－Ｏ和Ｃｕ－Ｎ的平均键长［１．９３９×１０－１（４）和２．０５１×１０－１（４）ｎｍ］。     

配合物Eu（P—MOBA）3bpy的晶体结构

在乙醇溶液中合成了对甲氧基苯甲酸－２，２′－联吡啶铕配合物的晶体，用ｘ－射线衍射方法测定了配合物的单晶结构，其结构式为Ｅｕ２（Ｐ－ＭＯＢＡ）６（ｂｐｙ）２Ｃ２Ｈ５ＯＨ（Ｐ－ＭＯＢＡ：对甲氧基苯甲酸根离子；ｂｐｙ；２，２′联吡啶），属三斜晶系ＰＴ空间群，晶胞参数；ａ＝１４８２（３）ｎｍ，ｂ＝１．３９０１（２）ｎｍ，ｃ＝１．０９４８（２）ｎｍ；α＝１０３．６３（１）＾０，β＝９２．６７（２）６０，γ＝     

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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