氨基酸氯化稀土配合物的制备

在非水溶剂中合成了氯化稀土甘氨酸配合物Ln(Gly)_3Cl_3·3H_2O和氯化稀土与甘氨酸及邻菲罗啉多元配合物LuGly(phen)_2Cl_3·H_2O(Ln=Pr,Nd)。通过元素分析,红外光谱和热重分析确定配合物的组成。     

稀土—山梨酸—苯酰丙酮三元固态配合物的合成及性质的研究

在无水二噁烷中合成了不同配比的苯酰丙酮(HBA)和山梨酸(已二烯酸,HSA)与 La(Ⅱ),Nd(Ⅱ),DY(Ⅱ),Yb(Ⅱ)的三元固态配合物,研究了它们的 UV、IR,热谱、X—光粉未衍射和浴解性等.通过元素分析,确定了这些配合物的化学组成式为 Ln(BA)(SA)Cl·2H_2O[Ln=La(Ⅱ),Dy(Ⅱ)]、和 Ln(BA)_2(SA)·2H_2O[Ln=Nd(Ⅱ),Yb(Ⅱ)].     

稀土(Ⅲ)硝酸盐N,N′-二亚水杨基乙二胺配合物的合成与性质

合成了Y(Ⅲ)、La(Ⅲ)、Tb(Ⅲ)、Er(Ⅲ)硝酸盐与双希夫碱-N,N′=二亚水杨基乙二胺的固体配合物,确定其组成为2Ln(NO_3),·3L·2H_2O,考查了这些配合物的溶解性、摩尔电导、红外光谱、紫外光谱、荧光光谱和热性质。     

香兰素对甲苯胺希夫碱硝酸稀土配合物的合成

制备了香兰素(3-甲氧基-4-羟基苯甲醛)对甲苯胺希夫(Schiff)碱硝酸稀土配合物。该配合物由一个中心稀土离子,二个单齿配位希夫碱,二个双齿配位硝酸根和一个外界硝酸根组成,中心稀土离子的配位数是6,其一般式为[LnL_2(NO_3)_2]NO_3(Ln=La, Ce, Pr, Nd, Sm, Eu; L=希夫碱配体)。     

几种α—氨基酸稀土的二元和三元配合物的合成及结构研究

在甲醇及水溶液中,合成了Nd~(3 )、Er~(3 )、Tb~(3 )与苏氨酸、半胱氨酸和酪氨酸固体配合物以及Tb~(3 )与酪氨酸和苯甲酸的三元配合物,组成为Ln(L)_3Cl_3·nH_2O(Ln=Nd、Er;L=Thre、Cys;n=2～4)和Ln_2L_3Cl_6·nH_3COH·mH_2O(Ln=Nd、Er、Tb;L=Tyr;n=2～4,m=4～8)以及Tb(Tyr)(Ben)Cl_2CH_3OH·2H_2O)。用红外、f-f超灵敏跃迁、荧光光谱及热分析测定了配合物的配位性质及结构。     

四氮杂大环-N-二乙酸与Zn(Ⅱ)、Cd(Ⅱ)、Hg(Ⅱ)配合物的合成及表征

本文报道在水溶液中合成的三种四氮杂大环-N-二乙酸(H_2L~1,H_2L~2和 H_2L~3)与Zn(Ⅱ),Cd(Ⅱ),Hg(Ⅱ)的固体配合物,用元素分析、电导测定及红外光谱对其组成进行了确定。H_2L~1、H_2L~2与三种金属离子分别形成组成为 ZnL·2HCl·nH_2O,Cd(H_2L)·2HCl·Cl_2·nH_2O 和 Hg_2(H_2L)·Cl_4·nH_2O 的配合物。H_2L~3与三种金属离子形成组成为 M_2L·Cl_2·nH_2O 的配合物。根据这些结果提出了这些配合物的可能结构。     

镧系(Ⅲ)-1-氨基乙酸-2,2′-联吡啶固态配合物的合成及研究

本文报导了镧系(Ⅲ)离子与1-氨基乙酸及2,2′-联吡啶反应所形成的固态三元配合物,通式为 Ln(Gly)_3(dip)_2Cl_3·H_2O(Ln 代表镧系离子,Gly 代表1-氨基乙酸,dip 为2,2′-联吡啶).考察了这些配合物的红外光谱、荧光谱光、热谱,比较了 x-射线粉末衍射及元素分析数据,确定了配合物的组成.     

含硫希夫碱配合物的研究Ⅱ.由S-苄基二硫代肼基甲酸酯衍生的希夫碱配合物

从S-苄基二硫代肼基甲酸酯(H_2NNHCSSCH_2C_6H_5)衍生出的两种希夫碱——邻氯苯甲醛希夫碱O—CIC_6H_4CHNNHC(S)SCH_2C_6H_5和亚苄基丙酮希夫碱C_6H_5CHCHC(CH_3)NNHC(S)SCH_2C_6H_5为配体,合成了与镍和铜的四种新的螯合物。对这些配合物进行了化学分析以及电导,磁性、紫外-可见光谱和红外光谱等性质的研究。结果表明,Ni(Ⅱ)与上述两种配体形成具有[NiA_2]和[NiB_2]形式的反磁性的平面正方形配合物,其中配体为单价双齿阴离子配体。Cu(Ⅱ)与邻氯苯甲醛希夫碱形成反磁性的Cu(Ⅰ)配合物[Cu(HA)A]。Cu(Ⅱ)与亚苄基丙酮希夫碱形成室温下磁矩为1.44B.M.的双核配合物[Cu_2Cl_2B_2],其中每个Cl桥与两个Cu(Ⅱ)相连,每个Cu(Ⅱ)具有平面正方形的配位结构。     

含硫希夫碱配合物的研究II.由S-苄基二硫代肼基甲酸酯衍生的希夫碱配合物

从S-苄基二硫代时基甲酸酯(H_2NNHCSSCH_2C_6H_5)衍生出的两种希夫碱——邻氯苯甲醛希夫碱O—CIC_6H_4CHNNHC(S)SCH_2C_6H_5和亚苄基丙酮希夫碱C_6H_5CHCHC(CH_3)NNHC(S)SCH_2C_6H_5为配体,合成了与镍和铜的四种新的螯合物。对这些配合物进行了化学分析以及电导,磁性、紫外-可见光谱和红外光谱等性质的研究。结果表明,Ni(Ⅱ)与上述两种配体形成具有[NiA_2]和[NiB_2]形式的反磁性的平面正方形配合物,其中配体为单价双齿阴离子配体。Cu(Ⅱ)与邻氯苯甲醛希夫碱形成反磁性的Cu(Ⅰ)配合物[Cu(HA)A]。Cu(Ⅱ)与亚苄基丙酮希夫碱形成室温下磁矩为1.44B.M.的双核配合物[Cu_2Cl_2B_2],其中每个Cl桥与两个Cu(Ⅱ)相连,每个Cu(Ⅱ)具有平面正方形的配位结构。     

SYNTHESIS AND CHARACTERIZATION OF THE MIXED LIGAND COORDINATION COMPOUND FROM RARE EARTH CHLORIDE AND THE NEUTRAL LIGANDS CONTAINING NITROGEN

The method of synthesizing ternary solid mixed ligand complexes from 1,10-phenanthroline, 2,2'-bipyridyl is reported. The series of complexes have been characterized by elemental analysis, infrared spectra, DSC-TGA analyses and molar conductivity. The results agree with the general formula LnL_1L_2Cl_3·nH_2O (Ln=La,Pr,Nd,Sm, Eu; Gd, Dy, Er, Tm, L_1=phen, L_2=bipy, n= 1,2,3).     

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.     

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.     

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)

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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