Dawson结构钨砷酸电荷转移配合物的合成与性质研究

以２∶１８钨砷酸为电子受体、喹啉（Ｃ９Ｈ７Ｎ）和８－羟基喹啉（Ｃ９Ｈ７ＯＮ）为电子给体合成了两种新型电荷转移配合物（Ｃ９Ｈ７ＮＨ）６［Ａｓ２Ｗ１８Ｏ６２］·Ｃ９Ｈ７Ｎ·３Ｈ２Ｏ（１）、（Ｃ９Ｈ７ＯＮＨ）６［Ａｓ２Ｗ１８Ｏ６２］·７Ｈ２Ｏ（２）．用元素分析、红外光谱、固体电子光谱、Ｘ射线粉末衍射、电子自旋共振以及循环伏安对它们进行了表征．结果表明：配合物（１）具有光致变色性质而８－羟基喹啉配合物（２）则不具有此性质．［Ａｓ２Ｗ１８Ｏ６２］６－在非质子介质（ＤＭＦ）中经历两步单电子可逆还原和两步单电子不可逆还原．     

(C24H16N2)3(HSiW12O40)·3DMF·4H2O的合成与表征

合成了一种新的电荷转移配合物（Ｃ２４Ｈ１６Ｎ２）３（ＨＳｉＷ１２Ｏ４０）·３ＤＭＦ·４Ｈ２Ｏ,用元素分析、红外、固体电子光谱、ＩＣＰ、热重分析和ＥＳＲ等手段对其进行了表征,确定了该配合物的化学组成与结构．研究表明有机电子给体与１２－钨硅杂多阴离子之间发生了电荷转移反应．     

杂多蓝型电荷转移配合物（C_8H_12N_2）_5H_7PMO_12O_40的

以Ｈ＿７［ＰＭＯ＿８ⅥＭｏＯ＿４ⅤＯ＿４０］·１２Ｈ＿２Ｏ为原料与对氨基二甲苯胺（Ｃ＿８Ｈ＿１２Ｎ＿２）反应合成了一种新型杂多蓝型电荷转移配合物（Ｃ＿８Ｈ＿１２Ｎ＿２）＿５Ｈ＿７ＰＭＯ＿１２Ｏ＿４０，并通过元素分析，ＩＲ、ＵＶ、ＸＰＳ、ＥＳＲ等手段对其进行了表征．发现在该化合物中杂多阴离子部分依然保持Ｋｅｇｇｉｎ结构，还发现在多电子的杂多蓝与芳香有机物对氨基二甲苯胺之间发生了显著的电荷转移．这种电荷转移被认为是所合成的化合物具有很大三阶非线性光学性质的理论根据．利用Ｚ－扫描技术在保持入射光强Ｉ＿０＝２．３８×１０￣１３ω／ｍ￣２，波长λ＝５３２ｎｍ条件下，测定了浓度为４．６８×１０（－６）ｍｏｌ·ｄｍ（－３）的（Ｃ＿８Ｈ＿１２Ｎ＿２）＿５Ｈ＿７ＰＭｏ＿１２Ｏ＿４０的ＤＭＳＯ溶液的三阶非线性光学系数ｘ（３），测得△Φ＝－４．１１，ｘ（３）＝－２．６１×１０（－１０）ｅｓｕ，为当今无机、有机材料中的优秀值．     

溴化苄对二乙基胺甲基膦酸锆的季铵化及三相催化反应

首次制得二乙基胺甲基膦酸锆－亚磷酸锆Ｚｒ（ＨＰＯ＿３）＿（２－ｘ）·（Ｏ＿３ＰＣＨ＿２ＮＥｔ＿２）＿ｘ·Ｈ＿２Ｏ（ＺＤＥＡＭＰ－ＺＰ，ｘ＝０．７５，０．６０，０．５０）．将ＺＤＥＡＭＰ－ＺＰ用溴化苄季铵化，得到部分季铵化的产物：溴化苄基二乙基铵甲基膦酸锆－二乙基胺甲基膦酸锆－业磷酸锆Ｚｒ（ＨＰＯ＿３）＿（２－ｘ）·（Ｏ＿３ＰＣＨ＿２ＮＥｔ＿２）＿（ｘ－ｙ）·（Ｏ＿３ＰＣＨ＿２Ｎ￣＋Ｅｔ＿２·ＣＨ＿２Ｐｈ·Ｂｒ￣－）＿ｙ·Ｈ＿２Ｏ（Ｙ＜Ｘ，ＺＢＤＥＡＭＰＢ－ＺＤＥＡＭＰ－ＺＰ）．ＺＢＤＥＡＭＰＢ－ＺＤＥＡＭＰ－ＺＰ用于进行液／固／液或固固／液三相催化的亲核取代成醚、卤代烃和羧酸盐合成酯及二氯卡宾加成反应，均得到良好的结果。催化剂易于分离和回收，通常回收７０％～１００％，催化剂重复使用１０次以上无明显失活。     

H5GeW11VO40.22H2O的合成与表征

首次采用分步酸化，分步加入原料方法制备出新型混配杂多酸－钨钒锗酸Ｈ５ＧｅＷ１１ＶＯ４０．２２Ｈ２Ｏ。给出了反应的ＰＨ值和物料的最佳比。用化学分析，电位滴定、ＩＲ、ＵＶ，＾５１ＶＮＭＲ，Ｘ射线粉末 热分析对合成产物进行了表征。     

1，1′─［四甲基二硅撑］双（环戊二烯基三羰基钨配合物）的合成及反应

１，２－二环戊二烯基四甲基二硅烷与丁基锂作用生成［四甲基二硅撑］双（环戊二烯基负离子盐），后者随即与六羰基钨反应形成１，１－［四甲基二硅撑］双［环戊二烯基三羰基钨负离子盐］，（Ｍｅ２ＳｉＳｉＭｅ２）·［Ｃｐ′（ＣＯ）３Ｗ－］２·２Ｌｉ＋（Ｉ）．（Ｉ）分别与六种卤化物反应，生成在钨原子上引入取代基的产物：（Ｍｅ２ＳｉＳｉＭｅ２）．［Ｃｐ′Ｗ（ＣＯ）３Ｒ］２，（Ｒ：Ｍｅ，Ｃ２Ｈ５，２；ＰｈＣＨ２，３；ＣＨ２ＣＯＯＣ２Ｈ５，４；ＣＨ３ＣＯ，５；Ｐ３ｈＳｎ，６）．（Ｉ）用醋酸处理后，随即分别与ＣＣｌ４，ＮＢＳ及Ｉ２作用，生成相应的钨卤化物，（Ｍｅ２ＳｉＳｉＭｅ２）［Ｃｐ′Ｗ（ＣＯ）３Ｘ］２，（Ｘ：Ｃ１，８；Ｂｒ，９；Ｉ，１０），（Ｉ）与Ｆｅ３＋／Ｈ３Ｏ＋作用发生氧化偶联，生成双核Ｗ－Ｗ键产物（Ｍｅ２ＳｉＳｉＭｅ２）［Ｃｐ′Ｗ（ＣＯ）３］２，１１．（Ｃｐ′＝Ｃ５Ｈ４）     

固体高质子导体钨钒锗酸的制备及导电性能研究

本文首次采用分步酸分，分步加入原料方法制备出新型固体高质子导体钨钒锗酸 Ｈ５ＧｅＷ１１ＶＯ４０．２２Ｈ２Ｏ。     

钛和锆钨硅杂多酸盐异构体的合成及表征

合成了α－和β－Ｍ１０－ｎＨｎ〔ＳｉＷ９Ｔｉ３Ｏ４０〕·ｘＨ２Ｏ（Ｍ＝Ｋ＋、Ｍｅ４Ｎ＋），α－（Ｍｅ４Ｎ）４Ｈ２〔ＳｉＷ１１ＺｒＯ４０〕·１３Ｈ２Ｏ和β－（Ｂｕ４Ｎ）４Ｈ２〔ＳｉＷ１１ｚｒＯ４０〕·１４Ｈ２Ｏ等杂多酸盐异构体。并用ＩＲ，ＵＶ，ＴＧ和ＤＴＡ、极谱以及Ｘ－射线粉末衍射等手段进行了表征。     

锗钼钨混配杂多酸电荷转移盐的合成、表征及非线性光学性质研究

用Ｈ４ＧｅＭｏ１２－ｎＷｎＯ４０ｍＨ２Ｏ（ｎ＝０～８）和甲基吡咯烷酮制备了一系列电荷转移盐,经元素分析确定其分子组成为「ＨＭＰＨ」４Ｇｅｍｏ１２－ｎＷｎＯ４０ＣＨ３ＣＮ。红外光谱,紫外光谱测定结果表明在该系列固体盐中,阴离子和有机阳离子之间存在强的相互作用;光照下化合发生分子内电荷转移,阴离子发生单电子还原反应,光照变色后有杂多蓝生成;二阶非线学性质研究表明,随着化合物分子内钨取代数的增多,化合物     

稀土硝酸盐与15冠5在有机溶剂中配位反应的电导研究

用电导法研究了在２５℃时几种稀土硝酸盐与１５冠５在（ＣＨ３）２ＣＯ、ＣＨ３ＣＮ、ＣＨ３ＯＨ及ＤＭＦ中的配位反应，计算了１：１配合物的稳定常数和摩尔电导率．结果表明，在溶剂（ＣＨ３）２ＣＯ、ＣＨ３ＣＮ、ＣＨ３ＯＨ和ＤＭＦ中，稀土和１５冠５配合物的稳定常数大小分别为Ｎｄ３＋＜Ｅｕ３＋＜Ｙ３＋，Ｅｕ３＋＞Ｇｄ３＋＞Ｙ３＋＞Ｄｙ３＋＞Ｔｂ３＋，Ｅｕ３＋＜Ｇｄ３＋＜Ｙ３＋和Ｎｄ３＋＜Ｇｄ３＋，在这几种无水溶剂中，同一稀土冠醚配合物的ＡＭＬ（ＮＯ３）３值大小顺序为：ＤＭＦ＞ＣＨ３ＯＨ＞ＣＨ３ＣＮ＞（ＣＨ３）２ＣＯ．     

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