CdI2与TSC加成物的合成及结构

ＣｄＩ２与ＴＳＣ在丙酮溶剂及水中形成加成物ＣｄＩ２（Ｃ４Ｈ１０Ｎ３Ｓ）２·Ｈ２Ｏ,晶体属单斜晶系,空间群为Ｐ２１／ｍ．晶胞参数为ａ＝０．７５３３（３）ｎｍ,ｂ＝１．５３５（２）ｎｍ,ｃ＝０．８４３７（２）ｎｍ,β＝９０．９１（３）°,ｖ＝０．９７６（１）ｎｍ３,Ｍｒ＝６４８．６４,Ｚ＝２,Ｄｃ＝２．２０ｇ·ｃｍ－３,μ（ＣｕＫα）＝４４．５８ｃｍ－１,Ｆ（０００）＝６０８,Ｔ＝２９７Ｋ．用１６２２个Ｉ≥３σ（Ｉ）独立衍射精修结构,最终偏差因子Ｒ＝０．０５７,晶体中存在分离的单核络合物ＣｄＩ２（Ｃ４Ｈ１０Ｎ３Ｓ）２·Ｈ２Ｏ,Ｃｄ原子呈畸变四面体配位．两个Ｃｄ－Ｉ和Ｃｄ－Ｓ键长分别为０．２７３０ｎｍ,０．２７４３ｎｍ和０．２５７５ｎｍ．     

双核铜配合物[Cu（C6H5COO）2（C5H6N2）]2（C4H8O）2的合成,结构和性质

在配体存在下，通过金属铜粉和过氧化苯甲酰的氧化加成反应合成了双核铜配合物［Ｃｕ（Ｃ６Ｈ５ＣＯＯ）２（Ｃ５Ｈ６Ｎ２）］２·，以元素分析、电导、热重－差热分析、红外光谱、磁性及粉末衍射对配合物进行了表征，并经Ｘ－射线单晶结构分析，确定了配合物的结构，晶体属于三斜晶系，空间群为Ｐ—１，分子式为Ｃ４６Ｈ４８Ｎ４Ｏ１０Ｃｕ２，Ｍｒ＝９４３．９３，ａ＝１０．８０６（１）ｋｂ＝１１．１６９（３），Ｃ＝１１．７２９（２）Ａ，α＝７１．９９（２），β＝８９．３８（１），γ＝８１．３７（１）°，Ｖ＝１３３０．１Ａ３，Ｄｃ＝１．１７２ｇ／ｃｍ３，Ｒ＝０．０４３２９，Ｒｗ＝０．０４８６０，Ｆ（０００）＝４９０，μ＝８．５ｃｍ－１，Ｚ＝１，两个铜原子的配位环境相同，由羧酸根的四个氧原子和２－氨基吡啶的氮原子形成五配位的四方锥多面体。     

Tb（Ⅲ）配合物[Tb（C18H20N2O4）（NO3）3]的合成和晶体结构

合成了配合物［Ｔｂ（Ｃ１８Ｈ２０Ｎ２Ｏ４）（ＮＯ３）３］,配体为２羟基３甲氧基苯甲醛与乙二胺缩合而成的双希夫碱．配合物晶体为单斜晶系,空间群Ｐ２１／ｎ,ａ＝１４１８６（３）ｎｍ,ｂ＝１１８４８（２）ｎｍ,ｃ＝１４６２６（３）ｎｍ,β＝１０４３５（３）°,Ｖ＝２３８２（１）ｎｍ３,Ｄｘ＝１８７２ｇ／ｃｍ３,Ｚ＝４,μ＝３０７５５ｍｍ－１,Ｆ（０００）＝１３２０,Ｒ＝００４７,Ｒｗ＝００５６．Ｔｂ（Ⅲ）的配位数为１０,配位几何构型为双帽四方反棱柱．所有配位原子都是氧原子．对该配合物进行了差热热重分析．     

水杨叉乙二胺Schiff碱（SEDA）铜配合物的单晶结构

合成标题化合物［（ｓｅｄａ）Ｃｕ］·ＥｔＯＨ,并得到单晶［ｓｅｄａ＝Ｎ,Ｎ′－二水杨叉基－１,２－二－（４－甲氧基苯基）乙二胺］．Ｘ－衍射结构分析表明,晶体属正交晶系,空间群Ｐｂｃａ,晶体学数据：ａ＝２．０１１５（４）ｎｍ,ｂ＝１．３１９６（３）ｎｍ,ｃ＝２．１０５７（４）ｎｍ,晶胞体积Ｖ＝５．５８９（３）ｎｍ３,分子量５８８．１６,Ｚ＝８,Ｄｘ＝１．３９８ｇ／ｃｍ３,μ＝８．２３９ｃｍ－１,Ｆ（０００）＝２４６５,最终偏离因子Ｒ＝０．０７９,Ｒｗ＝０．０８３,（Δ／σ）ｍａｘ＝０．６８．结构分析表明,配体中二个偶氮甲碱中氮原子和二个酚氧原子与中心Ｃｕ原子配位,形成规则的菱形平面结构．     

多聚配合物[Cd(β-ala)Cl_2]的合成与晶体结构

多聚配合物［Ｃｄ（β－ａｌａ）Ｃｌ２］用ＣｄＣｌ２与β－丙氨酸（β－ａｌａ，Ｈ３Ｎ＋ＣＨ２ＣＨ２ＣＯ２－）在水溶液反应制得，并用单晶结构分析法测定其结构．该配合物的化学式为Ｃ３Ｈ７ＣｄＣｌ２ＮＯ２，属正交晶系，空间群为Ｐｎｍａ（Ｎｏ．６２），ａ＝６９４．４（１），ｂ＝７９６．３（２），ｃ＝１２９３．１（３）ｐｍ，Ｖ＝０．７１５０（６）ｎｍ３，Ｚ＝４，Ｍｒ＝２７２．４０，Ｄｃ＝２．５３０Ｍｇ／ｍ３，用８３４独立衍射数据对结构进行精化，最后残差因子Ｒ１＝０．０４２１．结果表明，每个镉离子与４个Ｃｌ和２个β－ａｌａ的羧基氧原子配位，呈变形八面体结构．每对镉离子由２个Ｃｌ和１个双齿羧基桥连，形成一维链状聚合结构     

铜（Ⅱ）配合物[Cu（C8H4O2SF3）2]的合成,表征和晶体结构

室温下，金属铜粉和２－噻吩甲酰三氟丙酮在甲醇溶剂中反应生成铜配合物［Ｃｕ（Ｃ８Ｈ４Ｏ２ＳＦ３）２］通过元素分析，红外光谱、热重、Ｘ－射线粉末衍射对其进行表征，并经Ｘ－射线单晶测试该配合物为单斜晶体，空间群为Ｐ２１／Ｃ，晶胞参数ａ＝１０．５８２（１），ｂ＝１１．１６９（２），ｃ＝８．０４４（３）；β＝１０４．６１（２）°；Ｖ＝９１６．７３；ｚ＝２；Ｄｃ＝１．８３３ｇ·ｃｍ－３；Ｒ＝０．０８２，Ｒｗ＝０．０９２。铜原子与四个氧原子配位，形成四方平面     

二种硼化物的电子自旋共振波谱研究

用ＥＳＲ（ＥｌｅｃｔｒｏｎＳｐｉｎＲｅｓｏｎａｎｃｅ）波谱研究（Ｃ２Ｈ５）４ＮＢ１０Ｈ１０Ｃｕ和（ＣＨ３）４ＮＢ１２Ｈ１２Ｃｕ的结构和化学键．结果表明该系列化合物中１１Ｂ和１４Ｎ核与Ｃｕ２＋之间不是以共价键或者离子键形式直接连接,很可能存在着ＣｕＨＢ桥键,但Ｃｕ２＋和１Ｈ之间的作用比较弱．（ＣＨ３）４ＮＢ１２Ｈ１２Ｃｕ中Ｃｕ２＋位于Ｂ１２Ｈ１２２－轴对称性配位场中,因而有较高的对称性和稳定性;（Ｃ２Ｈ５）４ＮＢ１０Ｈ１０Ｃｕ中Ｃｕ２＋位于Ｂ１０Ｈ１０２－非轴对称性配位场,并且Ｃｕ２＋彼此之间相距较近     

苯甲酰丙酮，氨基吡啶与Cu（Ⅱ）的双核配合物的合成和磁性

合成了含有Ｃｌ－桥联配体的两个新的双核配合物：Ｃｕ２（ａｍｐｙ）２Ｃｌ４·１／２Ｃ２Ｈ５ＯＨ（ａｍｐｙ＝α－氨基吡啶）和Ｃｕ２［Ｎ，Ｎ’ｂｉｓ（ａｍｐｙ）－ｂｚａｃ（Ｈ２Ｏ）］Ｃｌ４·Ｃ２Ｈ５ＯＨ（ｂｚａｃ＝苯甲酰丙酮）．通过元素分析、ＩＲ、ＥＳＲ和室温磁化率表征，测定了这两个配合物的变温磁化率（４～３００Ｋ），其数值用最小二乘法与从自旋Ｈａｍｉｌｔｏｎｉａｎ算符导出的磁化率理论曲线拟合很好；求得了交换积分，对于配合物Ｃｕ２（ａｍｐｙ）２Ｃｌ４·１／２Ｃ２Ｈ５ＯＨ，Ｊ＝－４．７６Ｃｍ－２；对于Ｃｕ２［Ｎ，Ｎ’ｂｉｓ（ａｍｐｙ）－ｂｚａｃ（Ｈ２Ｏ）］Ｃｌ４·Ｃ２Ｈ５ＯＨ，Ｊ＝－４．７２ｃｍ－２，表明两个配合物中Ｃｕ（Ⅱ）－Ｃｕ（Ⅱ）核间有反铁磁相互作用．     

［Ag_2（α－Ph_2PPy）_2］_2（NO_3）_4的合成和晶体结构

ＡｇＮＯ＿３和ａ－ｐｈ＿２ｐｐｙ，（ａ－（Ｃ＿６Ｈ＿５）＿２Ｐ（ＮＣ＿５Ｈ＿５））在加有少量Ｈ＿２Ｏ＿２和ＮａＯＨ的Ｃ＿２Ｈ＿５ＯＨ水溶液中反应生成标题化合物的灰黑色晶体。属四方晶系，空间群Ｐ４＿１，ａ＝１．３００ｎｍ，Ｃ＝４．０７６ｎｍ，ｖ＝６．８８４ｎｍ￣３，Ｚ＝８，Ｄ＿ｃ＝１．６７ｇｃｍ￣（－３），Ｒ＝０．０５９，ｒ＿ω＝０．０７２．每一不对称单元中存在二套独立而结构基本相同的［Ａｇ＿２（ａ－ｐｈ＿２ＰＰｙ）＿２］￣２＋，它的二个Ａｇ原子和二个ａ－ｐｈ＿２ＰＰｙ中－Ｎ－Ｃ－Ｐ－桥的Ｎ，Ｐ原子联接成为一个稳定非共面八员环，而环内Ａｇ，Ａｇ间距分别是０．３１４，０．３ｌ０（ｎｍ），均未成键。不对称单元中的二个八员环通过的Ｏ原子与环上Ａｇ原子的弱成键而具有结构联系。环内还出现了罕见的三配位Ａｇ原子。     

2′－6′－二乙胺基萤烷的合成及晶体结构研究

利用Ｘ－射线衍射分析测定了标题化合物的晶体结构．Ｃ２４Ｈ２０ＮＯ３Ｃｌ属单斜晶系，空间群Ｐ２１／ｎ，Ｍｒ＝４０５．８８，ａ＝１１．６２５（３），ｂ＝１３．８４４（３），ｃ＝２２．６４３（４）×１０－１０ｍ，β＝９４．８０（２）°，Ｖ＝２０１５．（１）×１０－３０ｍ３，Ｚ＝４，Ｆ（０００）＝８４８，Ｄｃ＝１．３３ｇ／ｃｍ３，Ｒ＝０．０８４和Ｒｗ＝０．０９６．含有氧的六圆环为半椅式构象，五圆环和它相邻的苯环几乎共面．Ｃ（１４）与Ｏ（１），Ｃ（２１）与Ｏ（１）为典型的Ｓｐ２－Ｓｐ２键，使相邻两个苯环之间产生了共轭     

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