有机锡化合物在有机合成中应用的研究——二元酮的合成

本文以二(三苯膦)苄基氯化钯为催化剂、氯仿做溶剂,有机锡试剂与二元酰氯偶联合成二元酮。反应产率高、条件温和、易于操作,反应终点明显,是由易得二元酸合成二元酮的新方法。     

在活性银粉存在下2—溴芳乙酮与酚的反应

在活性银粉和碘化钾作用下,2-溴芳乙酮与一元或二元酚反应生成相应的单醚酮或双醚酮。当与邻苯二酚反应,只得到半缩酮。     

o—,m—,p—二甲苯或乙苯加丁酮体系的汽液平衡

在９９．９９２ｋＰａ压力下用Ｅｌｉｓ汽液平衡釜测定了丁酮＋乙苯、丁酮＋ｏ－二甲苯、丁酮＋ｍ－二甲苯、丁酮＋ｐ－二甲苯４个二元体系的汽液平衡数据,并进行了恒压下热力学一致性的检验．用Ｗｉｌｓｏｎ方程关联了实验数据,拟合精度令人满意     

二异丁基甲酮+1,2-丁二醇二元体系汽液平衡的测定与关联

利用改进后的汽液相双循环平衡装置(ZPH-1型)分别测定了10,30,50kPa压力下的二异丁基甲酮+1,2-丁二醇二元物系的等压汽液平衡数据。结果表明二异丁基甲酮+1,2-丁二醇二元物系存在共沸点。用Herrington面积检验法对平衡数据进行了热力学一致性检验,分别采用Wilson,NRTL和UNIQUAC活度系数模型对实验数据进行关联,理论值与实验结果基本一致。     

一个改进的局部组成型活度系数方程

本文在NRTL模型的基础上补充了超额熵对超额吉布斯自由能的贡献项,并导出了相应的活度系数方程。该方程在关联二元汽液、液液平衡数据中求得的能量作用参数的唯一性甚佳;用它单从二元数据推算三元液液平衡的推算精度较高,且对含水和不含水体系均适用。本文还测定了“水—甲基异丁基酮”在不同温度下的溶解度数据以及35℃下“水—丙酮—甲基异丁基酮”的连结线数据。     

丙酮-丁酮醇、丙酮-二丙酮醇二元汽液相平衡

采用Rose汽液平衡釜测定101.3 kPa下丙酮-丁酮醇、丙酮-二丙酮醇二元体系汽液相平衡数据,并使用Wilson、 NRTL和UNIQUAC模型对测定的实验数据进行关联,得到相应的二元交互参数.对该体系的汽液相平衡进行预测,预测值和实验值吻合良好,说明3个模型都能准确描述该体系的相平衡行为.采用Herrington经验法对相平衡数据进行热力学一致性检验,结果表明所测得数据可靠.本研究结果可为丁酮醇生产的工艺设计提供基础数据.     

表面活性剂对稀土荧光反应的影响——Ⅰ 离子型表面活性剂存在下 Ln~(3+)(Ln=Sm,Eu,Tb)-β-二酮、Ln~(3+)-β-二酮-有机碱及水溶性体系的荧光光谱

讨论了阴离子型表面活性剂(SDS)和阳离子型表面活性剂(CTMAB、Zeph 和 CPC)对 Ln~(3+)-β-二酮二元体系、Ln~(3+)-β-二酮-Phen(或 DPG)三元体系及 Tb~(3+)-AA-EDTA、Tb~(3+)-Tiron、Tb~(3+)-H_2Sal-EDTA 水溶性体系荧光光谱的影响,发现不同的表面活性剂对不同的反应体系影响不尽一致.增敏程度与表面活性剂和荧光配位体的结构有关。     

4－（喹啉－8＇－甲基）－1，4，7，10－四氮杂环十三烷－11，13－二酮的合成及其与Cu（Ⅱ）－bipy形成三元配合物的稳定性研究

本文合成了４－（喹啉８＇－甲基）－１，４，７，１０－四氮杂环十三烷－１１，１３－二酮．测定了该配体和４－（吡啶－２＇－甲基）－１，４，７，１０－四氮杂环十三烷－１１，１３－二酮配体的质子化常数及它们与ＣＵ（Ⅱ）形成的二元配合物，与Ｃｕ（Ⅱ）－ｂｉｐｙ形成的三元配合物的稳定常数．还合成了４－（喹啉－８＇－甲基）－１，４，８，１１－四氮杂环十四烷－１２，１＇４－Ｍ酮配体，测定了该配体的质子化常数及其与Ｃｕ（Ⅱ）形成的二元配合物的稳定常数．讨论并比较了这类带有功能性侧基的二氧四胺大环新型配体在水溶液中与Ｃｕ（Ⅱ）的配位能力、配位方式和相应配合物的空间构型．     

稀土β二酮络合物的合成与研究

合成了1-(2-呋喃基)-3-(对甲氧基苯基)-1,3-丙二酮作为新的络合剂,并合成了β二酮与三价稀土离子Ln~(3+)(Ln~(3+)=La~(3+),Pr~(3+),Nd~(3+),Sm~(3+),Eu~(3+),Gd~(3+),Tb~(3+),Dy~(3+),Ho~(3+),Er~(3+))的二元络合物.研究了它们的摩尔电导、热谱、可见紫外光谱、红外光谱等性质.     

制备含羧基侧基聚芳醚酮酮树脂的初步探索(I)

通过偏苯三甲酸酐制备1，2，4－苯三甲酰氯，再以二苯醚（DPE）、1，2，4－苯三甲酰氯（TAMC）为单体，无水AlCl3/二氯乙浣（DCE）／N－甲基吡咯烷酮（NMP）为催化剂溶剂体系，在Friedel-Crafts亲电聚合条件下合成了含羧基侧基的聚芳醚酮酮树脂（PEKK），进行了耐溶剂性试验，测定了其酸值及粘度，同时利用X－射线衍射、IR、DSC、TG等分析技术研究了含羧基侧基的聚芳醚酮酮树脂（PEKK）的结构和性能。研究结果表明：该聚合物是可溶性无规低聚物，聚合物含有羧基侧基，可望成为耐高温性能分离膜、离子交换树脂，同时可作为交联聚合物、接枝聚合物及其它特种高分子材料的中间体，而且通过二元或三元聚合来改变交联点、接枝点的密度，为进一步得到结构多样化与性能各异的聚芳醚酮酮提供一个良好的基础。     

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3～4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰～ -7.8‰, PDB) and matrix dolomites (-6.6‰～ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084～0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078～0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.     

A computer generator for randomly layered structures

AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…     

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。     

An Index mechanism for multi-scale view in spatial databases

There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

正~~     

Achieving Unusual States of Matter Under High Pressure

The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with