混合金属,四面体型RuCo3羰基簇合物的取代研究

簇合物ＮＥｔ４ＲｕＣｏ３（ＣＯ）１２［１］分别与配体三苯基膦和二苯基膦反应，得到双取代产物ＮＥｔ４Ｃｏ３（ＣＯ）１０（ＰＰｈ３）２《３》和ＮＥｔ４Ｃｏ３（ＣＯ）１０（ＰＰｈ２Ｈ）２［５］。双取代产物进一步质子化，则得到具有相应结构的中性簇合物ＨＲｕＣｏ（ＣＯ）１０（ＰＰｈ３）２［４Ａ］和ＨＲｕＣｏ（ＣＯ）１０（ＰＰｈ２Ｈ）２。它们的结构通过元素分析，红外，＾１ＨＮＲＭ．＾３１ＰＮＭＲ的关反应确认。     

五水羟基合铬(Ⅲ)配合物与氨基乙酸取代反应的动力学

应用分光光度法研究了五水羟基合铬（Ⅲ）配合物与氨基乙酸取代反应的动力学，在氨基乙酸大大过量的条件下，该反应对［Ｃｒ（Ｈ２Ｏ）５ＯＨ］２＋＿为假一级反应。探讨了反应物浓度、溶液酸度、氨基乙酸浓度、离子强度及反应温度对反应速率的影响，计算了反应的活化参数，提出了反应可能的机理，表明反应通过了一个缔合交换（Ｉａ）的机理．     

羟基乙酸、2，2′－联吡啶稀土三元配合物的量热研究

用量热滴定法以甲醇—水混和溶剂为体系（φ甲醇＝０．８６），测定了羟基乙酸稀土［Ｌａ（Ⅲ），Ｃｅ（Ⅲ）］与２，２′－联吡啶在２５℃时配位作用．计算了配合物的稳定常数和配位反应热焓．讨论了三元配合物的热力学性质随稀土原子序数的变化规律，并在文献［１］的基础上，对羟基乙酸稀土［Ｌａ（Ⅲ）］与不同含氮配体的配位作用进行了比较     

双核镉(Ⅱ)原子多氮穴合物的合成与晶体结构研究

报道了以三（３－胺基丙基）胺（ｔｒｐｎ）在Ｃｄ（ＣｌＯ４）２·６Ｈ２Ｏ存在下，分别与２，６－二甲醛基－４－甲苯酚（ｄｍｐ）及２，６－二甲醛基－４－溴苯酚（ｄｂｐ）的钠盐发生［２＋２］和［２＋３］的希夫碱缩合反应，合成了两个新的双核镉（Ⅱ）多氮穴合物［Ｃｄ２Ｌ１］ＣｌＯ４和［Ｃｄ２Ｌ２（Ｈ２Ｏ）］·２ＣｌＯ４·０．５ＣＨ３ＯＨ．晶体结构表明：穴合物中两个镉（Ⅱ）原子均处于相似的环境，每个镉（Ⅱ）原子的配位数均为７（Ｎ４Ｏ３），处于变形十面体的中心，穴合物［Ｃｄ２Ｌ１］＋中的两个镉（Ⅱ）通过三个酚氧原子为桥；穴合物［Ｃｄ２Ｌ２（Ｈ２Ｏ）］２＋中的两个镉（Ⅱ）则是通过二个酚氧原子和外加一个参与配位的水分子为桥连接起来．并进一步比较了［Ｃｄ２Ｌ１］，［Ｃｄ２Ｌ２（Ｈ２Ｏ）］２＋及另两个相似的镉（Ⅱ）双核穴合物［Ｃｄ２Ｌ３］＋，［Ｃｄ２Ｌ４］＋的稳定性大小．     

石油亚砜萃取铟的机理研究

研究表明，在盐酸介质中，石油亚砜萃取铟的机理与水相酸度有关。低酸度时，亚砜通过氧原子与ＩｎⅢ）配位生成萃合物ＩｎＣｌ３，２ＰＳＯ．Ｈ２Ｏ，高酸度时，亚砜则通过氧原子配位溶剂化，并与Ｉｎ（Ⅲ）反应生成离子缔合物［ＰＳＯ→Ｈ］＾＋［ＩｎＣｌ４．２ＰＳＯ］＾－。     

含μ－P（sph）_2的三核铑羰合簇Rh_3［μ－P（SC_6H_5）_2］_

Ｒｈ＿４（ＣＯ）＿（１２）与亚磷酸三硫代苯酯Ｐ（ＳＣ＿６Ｈ＿５）＿３反应产生一个具有磷桥基配体μ－Ｐ（ＳＣ＿６Ｈ＿５）＿２的新簇合物Ｒｈ＿３［μ－Ｐ（ＳＣ＿６Ｈ＿５）＿２］＿３（μ－ＣＯ）（ＣＯ）＿４．对该簇合物进行了元素分析测定以及ｌＲ、ＨＮＭＲ和ＭＳ谱学的表征     

理论研究气相中NH+4(H2O)n(n=1～6)簇合物的结构特征

利用密度泛函理论中B3LYP方法．6—31G（d，p）基组对NH4^＋（H2O）n（n=1～6）簇合物进行几何优化。得到了稳定结构,本论文分拆了NH4^＋（H2O）n（n=1～6）簇合物的稳定结构．发现NH4^＋与H2O以线性氢键结合成的簇合物结构最稳定。其次是二叉结构，再次是三叉结构．     

［Mo_3S_7Cl］结构单元钼－硫簇合物的晶体结构

［Ｍｏ＿３Ｓ＿７Ｃｌ］结构单元钼－硫簇合物的晶体结构王曼芳，郭国聪（厦门大学化学系）（中科院福建物质结构研究所）含Ｍｏ＿３（μ＿３－Ｘ）和Ｍｏ＿３（μ＿３－Ｘ）＿２（Ｘ＝Ｏ，Ｓ）的三核钼族合物，在考虑簇骨架多面体时可认为金属与非金属混合组成的结构多面...     

高分子凝胶化后诸性质与系统反应进程的关联

本文在Ｃｈａｒｌｅｓｂｙ［３］和唐敖庆［４］工作基础上，应用一般概率论概念，不经过分子量分布函数，对缩聚反应，固化反应、高分子交联反应（两种均聚物或一种共聚物）凝胶化后溶胶中诸性质与系统反应程度的关联进行统一的理论分析．     

含联吡啶或邻菲绕啉过渡金属配正离子与[Ni(cdc)_2]~(2-)的加合物的合成和波谱性质

合成了一系列含联吡啶或邻菲绕啉配体过渡金属配正离子与双（N-氰基亚胶基二硫代甲酸）合镍负离子的加合物，其通式为［ML2］［Ni（Cdc）2］（M＝Cu，Ni，CO；L＝bpy，Phen），［L2Cu2（P－C2O4）］［Ni（cdc）2］（L＝bpy，Phen）以及［M（Phen）n］［Ni（cdc）2］·2H2O（n＝1，M＝Cu；n＝2，M＝Zn）．通过元素分析、红外光谱、电子光谱、磁化率和顺磁共振谱对这些加合物进行了表征，讨论了正、负离子间的相互作用．     

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.     

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.     

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.     

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.     

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.     

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.     

橡胶颗粒沥青混合料低温抗裂性试验研究

以AC-13级配为基础,将橡胶颗粒代替部分集料掺入混合料中,以低温弯曲试验为评价方法对不同橡胶颗粒掺量下沥青混合料的低温抗裂性进行研究,并引入应变能密度值对混合料的低温抗裂性进行综合评价.试验结果表明:橡胶颗粒沥青混合料试件的破坏微应变均超过2 300,满足冬寒区的技术指标;无论是否掺加橡胶颗粒,随着温度的下降,沥青混合料破坏时的最大弯拉强度增大,弯拉应变降低,劲度模量增大;弯曲应变能密度在胶粒掺量为1%左右时具有较大的弯曲应变能密度值,此时橡胶颗粒沥青混合料具有较好的低温抗裂性.     

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。     

Quantitative trait loci （QTLs） for quality traits related to protein and starch in wheat

Quality traits in wheat （Triticum aestirum L.） were studied by quantitative trait locus （QTL） analysis in a recombinant inbred line （RIL） population, a set of 131 lines derived from Chuan 35050 × Shannong 483 cross （ChSh）. Grains from RILs were assayed for 21 quality traits related to protein and starch. A total of 35 putative QTLs for 19 traits with a single QTL explaining 7.99-40.52% of phenotypic variations were detected on 10 chromosomes, 1D, 2A, 2D, 3B, 3D, 5A, 6A, 6B, 6D, and 7B. The additive effects of 30 QTLs were positive, contributed by Chuan 35050, the remaining 5 QTLs were negative with the additive effect contributed by Shannong 483. For protein traits, 15 QTLs were obtained and most of them were located on chromosomes 1 D, 3B and 6D, while 20 QTLs for starch traits were detected and most of them were located on chromosomes 3D, 6B and 7B. Only 7 QTLs for protein and starch traits were co-located in three regions on chromosomes 1D, 2A and 2D. These protein and starch trait QTLs showed a distinct distribution pattern in certain regions and chromosomes. Twenty-two QTLs were clustered in 6 regions of 5 chromosomes. Two QTL clusters for protein traits were located on chromosomes 1D and 3B, respectively, three clusters for starch traits on chromosomes 3D, 6B and 7B, and one cluster including protein and starch traits on chromosome 1D.     

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.