含RE^3＋,Cu^2＋杂金属配合物合成与表征

以吡啶乙酸内盐，简称ｐｙｂ）为配体，在ｐＨ２．５和３．５下分别合成了２类配合物。经过元素分析和红外光谱等分析，确定了配合物的组成分别为ＲＥＣｕ（Ｐｙｂ）_５（ＣｌＯ_４）_５·ｎＨ_２Ｏ（ＲＥ＝Ｌａ，Ｃｅ，Ｎｄ，Ｓｍ，Ｇｄ，Ｄｙ，Ｅｒ，Ｙ）和ＲＥ_６Ｃｕ_（１２）（ＯＨ）_（２４）（Ｐｙｂ）_（１２）（ＣｌＯ_４）_（１８）·ｎＨ_２Ｏ（ＲＥ＝Ｌａ，Ｃｅ，Ｎｄ，Ｓｍ，ｎ＝３２；ＲＥ＝Ｇｄ，Ｄｙ，ＥｒＹ，ｎ＝２８），观察了Ｎｄ~（３＋）的水溶液中，分别加入Ｐｙｂ，Ｐｙｂ和Ｃｕ~（２＋）或Ｍｎ~（２＋），Ｎｉ~（２＋），Ｐｒｂ［三甲基按丙酸内盐，（ＣＨ_３）_３Ｎ~＋，简称Ｐｒｂ］，Ｐｒｂ和Ｃｕ~（２＋）后，ｆ－ｆ超灵敏跃迁吸收光谱的变化。结果表明，在ｐＨ２．５和３．５下，Ｃｕ~（２＋）均使Ｎｄ~（３＋）·ｐｙｂ体系超灵敏跃迁的振子强度增大，且增大值相同，Ｃｕ~（２＋）对Ｎｄ~（３＋）－Ｐｒｂ体系、Ｍｎ~（２＋）（或Ｎｉ~（２＋））对Ｎｄ~（３＋）－Ｐｙｂ体系超灵敏跃迁吸收光谱均无影响，讨论了超灵敏跃迁振子强度变化与杂金属配合物形成的关系。     

稀土与吡啶甜菜碱和2,2‘—联吡啶配合物的研究

合成了稀土土离子（Ｌａ＾３＋，Ｎｄ＾３＋，Ｅｕ＾３＋，Ｇｄ＾３＋，Ｔｂ＾３＋，Ｅｒ＾３＋）与吡啶乙酸内盐（Ｃ５Ｈ５Ｎ＾＋ＣＨ２ＣＯ＾－２，ｐｙｂ）及，２，２‘－联吡啶的三元配合物。通过元素分析，红外光谱等测试手术，确定配合物的组成为ＲＥ２（ｂｐｙ）５（ｐｙｂ）４（ＣｌＯ４）６．５Ｈ２Ｏ。测定了Ｅｕ＾３＋配合物的晶体结构，属三斜晶系。     

稀土与吡啶甜菜碱和2，2′－联吡啶配合物的研究

合成了稀土离子（Ｌａ３＋，Ｎｄ３＋，Ｅｕ３＋，Ｇｄ３＋，Ｔｂ３＋，Ｅｒ３＋）与吡啶乙酸内盐（Ｃ５Ｈ５Ｎ＋ＣＨ２ＣＯ２－，ｐｙｂ）及２，２′－联吡啶（ｂｐｙ）的三元配合物．通过元素分析、红外光谱等测试手段，确定配合物的组成为ＲＥ２（ｂｐｙ）５（ｐｙｂ）４（ＣｌＯ４）６·５Ｈ２Ｏ．测定了Ｅｕ３＋配合物的晶体结构，属三斜晶系．通过ｆ－ｆ超灵敏跃迁光谱及荧光光谱讨论了配合物化学键的离子性特点．     

La1+zBa2-zCu3Oy相的形成、固溶度及La对Ba的替代

对Ｌａ１＋ｚＢａ２－ｚＣｕ３Ｏｙ相的形成,固溶度和Ｌａ对Ｂａ的替代进行了系统研究,以期获得制备具有更高Ｔｃ的超导体的最佳条件。表明Ｌａ１＋ｚＢａ２－ｚＣｕ３Ｏｙ在空气中固溶度为０．２０－０．７０,Ｎ２中为０。在空气中合成Ｌａ１＋ｚＢａ２－ｚＣｕ３Ｏｙ时,Ｌａ能替代Ｂａ,但Ｂａ并不能替代Ｌａ,空气和Ｏ２有利于Ｌａ对Ｂａ的替代,但当在Ｎ２中合成Ｌａ１＋ｚＢａ２－ｚＣｕ３Ｏｙ时,Ｌａ对Ｂａ的替代受到抑制     

磷酸三丁酯-Span80-二甲苯乳状液膜迁移、富集稀土元素La(Ⅲ)的研究

用ＴＢＤ－Ｓｐａｎ８０－二甲苯乳状液膜体系研究了Ｌａ３＋的迁移行为，确定了完全、快速迁移Ｌａ３＋的条件．在该条件下，能够使Ｌａ３＋从常见过渡元素Ｆｅ３＋、Ｃｏ２＋、Ｎｉ２＋、Ｃｕ２＋、Ｃｄ２＋、Ｍｎ２＋、Ｚｎ２＋等离子的混合液中得到完全分离．     

镍电解液萃取净化研究-用二(2.6-二甲基-4-庚基)磷酸萃取净化流程的数学模型及最优化计算

本文提出用二（２．６－二甲基－４－庚基）磷酸［ＨＤ（ＤＩＢＭ）Ｐ］作为萃取剂，用于镍阳极电解液中的Ｎｉ２＋、Ｃｏ２＋、Ｃｕ２＋和Ｆｅ３＋的萃取分离流程。在一定的工艺条件下，测定了各种金属离子的平衡数据，建立了Ｎｉ２＋、Ｃｏ２＋、Ｃｕ２＋和Ｆｅ３＋的分配模型。并在此基础上，针对含有 １４０ 克／升 ＳＯ４－２和 ４０克／升 Ｃｌ－的镍阳极电解液体系对其中 Ｎｉ２＋、Ｃｏ２＋、Ｃｕ２＋分离工艺进行了最优计算，并确定了水法处理该溶液的萃取流程。所得最优工艺参数为：温度＝５０℃；ＨＤ（ＤＩＢＭ）Ｐ浓度＝０．２３Ｍ； ｐＨ＝５，７４； ３级，有机相对于水相流比Ｏ／Ａ＝０．３１。此时，镍回收率为９９％，钴回收率为９４．１％，铜回收率为９９．９９％。此项研究由北京第五研究所提供萃取剂。     

磷酸三丁酯—Span80—二甲苯乳状液膜迁移,富集稀土元…

用ＴＢＤ－Ｓｐａｎ８０－二甲苯乳状液膜体系研究了Ｌａ＾３＋的迁移行为，确定了完全、快速迁移Ｌａ＾３＋的条件。在该条件下，能够使Ｌａ＾３＋从常见过渡元素Ｆｅ＾３＋、Ｃｏ＾２＋、Ｎｉ＾２＋、Ｃｕ＾２＋、Ｃｄ＾２＋、Ｍｎ＾２＋、Ｚｎ＾２＋等离子的混合液中得到完全分离。     

抗坏血酸对Cu~（2＋）与TPPS_3配位反应促进机理的研究

本文利用可见吸收光谱法和直流极谱法研究了抗坏血酸对Ｃｕ（２＋）的还原性、Ｃｕ（２＋）的还原状态、抗坏血酸浓度及溶液中溶解氧浓度对Ｃｕ２＋与三磺基四苯基卟啉（ＴＰＰＳ３）配位反应的影响。实验证明，在抗坏血酸存在下，Ｃｕ２＋与ＴＰＰＳ３可能的配位反应机制为；抗坏血酸首先将Ｃｕ２＋还原为Ｃｕ２＋，Ｃｕ２＋与ＴＰＰＳ３生成很不稳定的、对溶解氧非常敏感的Ｃｕ（Ⅰ）－ＴＰＰＳ３中间体，此中间体一旦生成立即被溶液中的溶解氧氧化为Ｃｕ２＋（Ⅲ）－ＴＰＰＳ３配合物。     

掺杂金属离子对α－FeOOH的形态调节作用

采用ＴＥＭ、ＨＲＥＭ、ＤＴＡ和ＸＲＤ等表征方法，研究了掺杂Ｎｉ￣（２＋）、Ｃｒ￣（３＋）、Ｌａ￣（３＋）和Ｃｅ￣（３＋）四种金属阳离子对α－ＦｅＯＯＨ粒子形态的影响及其作用机制。结果表明，掺杂Ｎｉ￣（２＋）和Ｃｒ￣（３＋）可明显提高α－ＦｅＯＯＨ粒子的轴比，而掺杂Ｌａ￣（３＋）和Ｃｅ￣（３＋）则不能；Ｎｉ￣（２＋）、Ｌａ￣（３＋）和Ｃｅ￣（３＋）亦可抑制ａ－ＦｅＯＯＨ枝叉的形成。研究发现，杂质离子改变了铁黄表面和本体结构，且提高铁黄粒子轴比的作用源于其抑制α－ＦｅＯＯＨ短轴方向（１２０）晶面的生长速率。     

金属离子的反相微胶团萃取研究

研究了用正己烷－环己醇、异辛烷－正己醇作萃取溶剂,铬天青Ｓ作萃取剂,加入Ｎ－氯代十六烷基吡啶、十六烷基三甲基溴化铵等阳离子表面活性剂,在ＨＮＯ３和ＨＣｌ介质中Ｆｅ（Ⅱ）,Ｌａ（Ⅱ）,Ｃｕ（Ⅱ）和Ｐｄ（Ⅱ）等金属离子的反相微胶团萃取行为。讨论了不同浓度的电解质溶液和酸溶液对有机相中金属离子进行反萃取的影响,实现了Ｆｅ（Ⅲ）－Ｃｕ（Ⅱ）,Ｌａ（Ⅲ）－Ｃｕ（Ⅱ）等金属离子间的定量萃取分离。     

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