光度法测定N,N’-双(8-喹啉基)丙二酰胺过渡金属配合物的稳定常数

报导用连续变化光度法在非水溶剂ＤＭＦ溶液中测定一种新合成的配体，Ｎ，Ｎ′－ｂｉｓ（８－ｑｕｉｎｏｌｙｌ）ｍａｌｏｎａｍｉｄｅ和４种过渡金属离子Ｃｕ２＋、Ｚｎ２＋、Ｃｏ２＋、Ｎｉ２＋所形成配合物的稳定常数。按其对数值的大小排列有如下顺序：Ｃｕ２＋（５．６２）＞Ｚｎ２＋（４．０３）＞Ｎｉ２＋（３．８２）＞Ｃｏ２＋（３．７９），配合物的配位比为１１．实验表明，它们的稳定性较之在水体系中、类似的酰胺配合物的稳定性要大得多     

聚(N-羧乙基乙烯亚胺)与重金属离子的配位性能评价

运用两种改良的Ｂｊｅｒｒｕｍ方法对聚（Ｎ－羧乙基乙烯亚胺）（ｐｏｌｙ（Ｎ－ｃａｒｂｏｘｙｅｔｈｙｌｅｔｈｙｌｅｎｉｍｉｎｅ），ＰＣＥＩ）与重金属离子Ｃｏ２＋，Ｎｉ２＋，Ｃｕ２＋，Ｃｄ２＋，Ｚｎ２＋的配位稳定性能进行了评价．通过连续变动法确定了配位物的组成．这几种重金属离子与ＰＣＥＩ的配位逐次稳定常数均为ｌｇｋ１＞ｌｇｋ２＞ｌｇｋ３＞ｌｇｋ４，配位稳定次序为Ｎｉ２＋＞Ｃｏ２＋～Ｚｎ２＋＞Ｃｄ２＋．ＰＣＥＩ与重金属离子的配位在大分子内进行，与Ｃｕ２＋，Ｃｄ２＋，Ｚｎ２＋的配位数为４．     

光度法测定N,N‘—双（8—喹啉基）丙二酰胺过渡金属配合…

报导用连续变化度法在非水溶剂ＤＭＦ溶液中测定一种瓣合成的配体，Ｎ，Ｎ’－ｂｉｓ（８－ｑｕｉｎｏｌｙｌ）ｍａｌｏｎａｍｉｄｅ和４种过渡金属离子Ｃｕ＾２＋、Ｚｎ＾２＋、Ｃｏ＾２＋、Ｃｉ＾２＋所形成配合物的稳定常数，按共对数值的大小排列有如下顺序：Ｃｕ＾２＋（５．６２）〉Ｚｎ＾２＋（４．０３）〉Ｎｉ＾２＋（３．８２）〉Ｃｏ＾２＋（３．７９），配合物的配位比为１：１。实验表明，它们的稳定性较之在水体系中，     

N－取代苯氨基乙酸与第一系列过渡金属的配合物的结构研究

制备了不同取代基的Ｎ－取代苯氨基乙酸金属配合物Ｍ（Ｒ－ＰｈＧ）ｎ（其中Ｍ＝Ｃｒ（３＋），Ｍｎ（２＋），Ｃｏ（２＋），Ｎｉ（２＋），Ｃｕ（２＋）；Ｒ＝ｐ－ＣＨ３，ｍ－ＣＨ３Ｏ，ｐ－ＣＨ３Ｏ，ｐ－Ｃ１，ｍ－Ｃ１；ＰｈＧ＝Ｃ６Ｈ４ＮＨＣＨ２ＣＯＯ－）并对它们进了元素分析，差热分析，红外振动光谱和电子吸收光谱分析，以及磁化率的测定。对它们从组成，热稳定性，磁性，及空间的构型进行了探讨。     

N，N，N~I，N~I－邻苯二胺四甲基膦酸与Zn、Cu配合物的pH电位法研究

用ｐＨ位法研究了Ｎ，Ｎ，Ｎ￣Ｉ，Ｎ￣Ｉ－邻苯二胺四甲基膦酸（Ｌ）的配位性质，并测定了其与Ｚｎ（Ⅱ）、Ｃｕ（Ⅱ）形成的配合物的稳定常数。Ｃｕ（Ⅱ）－Ｌ：ｌｏｇＫ＝１５．７８，Ｚｎ（Ⅱ）－Ｌ：ｌｏｇＫ＝１３．５０．     

11—系列杂多钨硅酸盐异构体的氧化还原性质研究

通过极谱和循环伏安法，结合红外光谱、紫外光谱和Ｘ射线光电子能谱，研究了通式为β２—Ｋ６—ｎＨｎ［ＳｉＷ１１Ｍ（Ｈ２Ｏ）Ｏ３９］·ｘＨ２Ｏ（Ｍ＝Ｍｎ２＋．Ｆｅ３＋，Ｃｏ２＋，Ｎｉ２＋Ｃｕ２＋Ｚｎ２＋）杂多钨硅酸盐在溶液中的氧化还原性质，杂多阴离子的极谱半波电位Ｅ１／２。顺序为Ｃｕ２＋＞Ｍｎ２＋＞Ｆｅ２＋＞Ｚｎ２＋＞Ｃｏ２＋＞Ｎｉ２＋．发现杂多阴离子的半波电位Ｅ１／２与其组分中的过渡元素的电负性Ｘ有线性关系，讨论了过渡元素对杂多阴离子氧化还原性的影响。     

N，N′－双（8－喹啉基）和N，N′－双（2－羟基苯基）丙二酰胺金属配合物的合成及物化性质研究

合成了配体Ｎ，Ｎ’－双（８－喹啉基）丙二酰胺（ｑｍａＨ＿２），Ｎ，Ｎ’－双（２－羟基苯基）丙二酰胺（ｈｐｍａＨ＿４）及其金属配合物［Ｍ＝Ｃｕ（Ⅱ）、Ｎｉ（Ⅱ）、Ｃｏ（Ⅲ）、Ｐｄ（Ⅱ）、Ｚｎ（Ⅱ）］。并采用元素分析，’ＨＮＭＲ、ＵＶ－ｖｉｓ、ＩＲ、ＭＳ、摩尔电导、熔点测定进行了化合物的结构表征对配体ｑｍａＨ＿２的金属配合物作了荧光测定。结果表明：配体ｈｐｍａＨ＿４与Ｃｕ（Ⅱ）和Ｃｏ（Ⅱ）配位时，酰胺分别非去质子化和去质子化；配体ｑｍａＨ＿２与金属离子生成类芳香性配合物。由于金属ｄ电子参与芳环π电子的共轭，表现出芳环紫外吸收峰蓝移和荧光性质，尤以Ｚｎ（Ⅱ）配合物最佳；配体ｑｍａＨ＿２与Ｃｏ（Ⅱ）配位时表现出吸氧特性，生成μ－过氧键配合物。     

β－氨基－α－羟乙基二茂铁及其过渡金属配合物的合成与表征

用β－氨基－α－羟已基二茂铁与二价钴、镍、铜、锌、镉和汞的氯化物及醋酸铜在乙醇－水中反应，合成了七种新的配合物．探索出了适宜的反应条件，经元素分析，确定了新配合物的组成为：Ｌ２ＭＸ２·ｎＨ２Ｏ（Ｌ＝Ｆｃ─ＣＨＣＨ２ＮＨ２；Ｍ＝Ｃｏ２＋、Ｎｉ２＋、Ｃｕ２＋、Ｚｎ２＋、Ｃｄ２＋、Ｈｇ２＋，ｘ＝Ｃｌ－，ＣＨ３ＣＯＯ－；ｎ＝０，２，４）．通过红外光谱和核磁共振氢谱．对这些配合物的结构进行了表征．     

取代型Keggin结构杂多阴离子插层化合物的合成及氧化活性

采用离子交换技术合成了过渡元素取代型Ｋｅｇｇｉｎ结构杂多阴离子柱撑层柱化合物Ｚｎ＿２Ａｌ－ＳｉＷ＿９Ｚ＿３（Ｚ＝Ｃｏ￣（２＋）、Ｃｕ￣（２＋０）与Ｚｎ＿２Ａｌ－ＢＷ＿１１Ｚ（Ｚ＝Ｃｏ￣（２＋）、Ｃｕ￣（２＋）和Ｎｉ￣（２＋））；ＸＲＤ与ＩＲ测试表明，它们具有０．９８±０．０１ｎｍ的通道高度，层间杂多阴离子保持Ｋｅｇｇｉｎ结构骨架；在液－固相体系中，它们对苯甲醛的Ｈ＿２Ｏ＿２氧化反应具有显著高的催化活性，是性能优秀的固一液相氧化型催化剂．     

杂多阴离子柱撑水滑石类层柱状化合物的合成与表征

以硝酸根型水滑石做交换前驱体，采用离子交换法合成了过渡金属离子三元取代硅钨杂多阴离子柱撑水滑石Ｍ＿２Ａｌ（ＯＨ）＿６－ＳｉＷ＿９Ｚ＿３（Ｈ＿２Ｏ）＿３Ｏ＿（３７）（Ｍ＝Ｍｇ￣（２＋），Ｚｎ￣（２＋），Ｎｉ￣（２＋），Ｚ＝Ｃｕ￣（２＋），Ｃｏ￣（２＋））．用元素分析、ＸＲＤ、ＩＲ、ＵＶ－ＤＲＳ和ＤＴＡ等手段对产物的组成和结构进行了表征。结果表明，杂多阴离子引入水滑石层间后，水滑石的层间距从０．９２ｎｍ增大到１．４７ｎｍ；提高了柱撑材料的热稳定性，随层的组成不同热稳定性顺序为：Ｍｇ＿２Ａｌ≥Ｎｉ＿２Ａ１＞Ｚｎ＿２Ａｌ；随柱的组成不同热稳定性顺序为：ＳｉＷ＿９Ｃｏ＿３＞ＳｉＷ＿９Ｃｕ＿３．处于层中的杂多阴离子在层的脱羟基温度以下均能保持良好的Ｋｅｇｇｉｎ结构。     

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.     

An Analysis of Catherine＇s Character——Wuthering Heights

Wuthering Heights, Emily Bronte＇s only novel, was published in December of 1847 under the pseudonym Ellis Bell. The book did not gain immediate success, but it is now thought one of the finest novels in the English language. Catherine is the key character of this masterpiece, because everybody and everything center on her though she had a short life. We can understand this masterpiece better if we know Catherine well.     

Lower Paleozoic oil relationships within Williston Basin, Canada

The Williston Basin is a significant petroleum province, containing oil production zones that include the Middle Cambrian to Lower Ordovician, Upper Ordovician, Middle Devonian, Upper Devonian and Mississippian and within the Jurassic and Cretaceous. The oils of the Williston Basin exhibit a wide range of geochemical characteristics defined as "oil families", although the geochemical signature of the Cambrian Deadwood Formation and Lower Ordovician Winnipeg reservoired oils does not match any "oil family". Despite their close stratigraphic proximity, it is evident that the oils of the Lower Palaeozoic within the Williston Basin are distinct. This suggests the presence of a new "oil family" within the Williston Basin. Diagnostic geochemical signatures occur in the gasoline range chromatograms, within saturate fraction gas chromatograms and biomarker fingerprints. However, some of the established criteria and cross-plots that are currently used to segregate oils into distinct genetic families within the basin do not always meet with success, particularly when applied to the Lower Palaeozoic oils of the Deadwood and Winnipeg Formation.     

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.     

Design and analysis of generic LBS application developing platform

Location based services is promising due to its novel working style and contents.A software platform is proposed to provide application programs of typical location based services and support new applications developing efficiently. The analysis shows that this scheme is easy implemented, low cost and adapt to all kinds of mobile nework system.     

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