[Co（2,6-pyridinediformates）2（H2O）3]的合成与晶体结构

合成了2,6-吡啶二甲酸合钴的配合物,通过了元素分析、红外光谱对其结构进行了表征.用X-射线单晶衍射测定了该配合物的晶体和分子结构.配合物晶体为单斜晶系,空间群P 21/c,晶胞参数：a=13.8584（11）,b=10.0806（8）,c=13.6858（10）,α=90.00°,β=115.843（5）°,γ=90.00°,Z=4,V=1720.7（2）3,Dc=1.719g/cm3,μ=1.064mm-1,F（000）=908,差值电子密度最高和最低峰为711和-756e.nm-3.     

锌(Ⅱ)与2-巯基苯并噻唑和邻菲啰啉的配合物[Zn(mbt)_2(phen)]的合成与晶体结构

一种新的Zn(Ⅱ)配合物[Zn(mbt)2(phen)](2-Hmbt=2-巯基苯并噻唑;phen=邻菲啰啉)已经合成出来,并通过元素分析,红外光谱及X-ray单晶衍射进行表征.该晶体属单斜晶系,C2/c空间群,晶胞参数为a=53.018(12)nm,b=9.824(2)nm,c=14.149(3)nm,α=90.00°,β=90.10°,γ=90.00°,V=7369(3)nm3,Z=2.中心原子Zn与两个mbt的两个环外S原子及phen配体的两个N原子双齿螯合配位形成变形四面体构型.该配合物包含两个晶体学上独立的分子,通过X-ray单晶衍射分析表明这两个分子只是在键长和键角上略微不同.     

九配位多孔金属有机框架Eu(HCOO)_3配合物的原位合成及其结构分析

在高温水热条件下,N,N-二甲基甲酰胺(DMF)水解生成甲酸配体,合成九配位的配合物Eu(HCOO)3,配合物通过红外光谱,X-射线单晶衍射和元素分析.结果显示:配合物为三方晶系,R3m空间群.a=1.04972(3)nm,b=1.04972(3)nm,c=0.40011(2)nm,α=90.00°,β=90.00°,γ=120.00°,V=0.38182(2)nm3.配合物中,甲酸根以三齿配位方式桥联,每1个铕(Ⅲ)离子与9个甲酸根的氧原子配位,形成了EuIII O9的九配位三帽三角棱柱体结构,具有高度对称结构.同时对配合物进行了荧光测试,发现配合物具有下转换发光,荧光寿命较长为1.1ms.     

N-氧化-2-巯基吡啶锌盐的合成及晶体结构

以2-氯吡啶为原料,在冰醋酸介质中,用双氧水氧化生成N-氧化-2-氯吡啶.N-氧化-2-氯吡啶与NaSH反应进行巯基化,再经制备钠盐,最终与ZnSO4螯合得到N-氧化-2-巯基吡啶锌盐.通过熔点、核磁氢谱及X射线单晶衍射对产物进行了表征及晶体结构分析.分析结果表明,该晶体属于单斜晶系,P21/C空间群,a=0.84010(17)nm, b=1.0184(2)nm,c=1.3736(3)nm,α=90.00°,β=97.23(3)°,γ=90.00°,Dx=1.810g/cm3,Z=4,F(000)=640,μ=2.453 mm-1.最终偏差因子分别为R=0.0325,wR =0.0728.     

四氟硼酸氯·[三(2-氨基乙基)胺]合锌(Ⅱ)的合成和晶体结构

氯化锌、三(2-氨基乙基)胺及四氟硼酸钠在甲醇介质中反应,合成单核锌配合物{[(tren)ZnCl]BF4},用IR和1H NMR等手段对该化合物的结构进行表征.单晶x衍射法测得其晶体结构为单斜晶系,空间点群为P2(1)/c,晶体学参数为a=1.068 0(3)nm,b=1.153 2(3)nm,c=1.103 4(3)nm,α=90.00°,β=102.453°,γ=90.00°,V=1.327 0(7)nm3,Dc=1.671 g/cm3,Z=4,F(000)=680,μ=2.083 mm-1.     

基于4-吡啶氰原位合成的四氮唑铜配合物研究

本文以4-吡啶氰和一价铜盐,在溶剂热条件下原位自组装合成了一个新的配合物.通过X射线单晶衍射测定了其结构,该配合物属于单斜晶系,空间群为P2（1）/c,a=5.7（nm）,b=15.9（nm）,c=10.8（nm）,a=90°,β=93.8,V=984.2nm3,配体为刚性配位,形成一个三维的具有孔道的结构,还测定了该配合物的荧光性质。     

配合物[Zn(SA)2(H2O)2]的合成及晶体结构

在乙醇和水的混合体系中合成了锌配合物[Zn(SA)2(H2O)2](SA=水杨酸根),通过元素分析及X-射线单晶衍射对其进行了表征。结果表明该化合物属于单斜晶系,P21/c空间群,晶胞参数为a=1.55051(15)nm,b=0.53522(10)nm,c=0.91962(14)nm,α=90.00°,β=93.567(2)°,γ=90.00°,晶胞体积V=0.7617(2)nm3,Z=2,Dcalc=1.638 g.cm-3,F(000)=384,μ=1.652 cm-1,R=0.0298,wR=0.0710。     

异金属Cu-Zn配合物的合成、晶体结构及光谱表征

在溶剂热条件下,利用配合物配体CuL与高氯酸锌反应,合成了一例新的异金属配合物[(CuL)2Zn(ClO4)2],其结构经X-射线单晶衍射、元素分析、红外光谱,紫外—可见光谱等表征.配合物属于单斜晶系,C2/c空间群.晶胞参数分别为a=1.5756(2)nm,b=1.7660(2)nm,c=1.5570(2)nm,α=90°,β=94.137(2),γ=90°.配合物通过分子间氢键连成一维链状结构.     

3-羧基水杨醛缩2-氨甲基吡啶合铜配合物的合成、表征和晶体结构

合成了3-羧基水杨醛缩2-氨甲基吡啶(H2SP)及其Cu(Ⅱ)配合物[Cu(HSP)(H2O)2]ClO4,通过红外光谱、紫外光谱、X射线单晶衍射分析等手段对配合物的结构进行了表征.该配合物属于单斜晶系,P-1空间群,晶胞参数为:a=0.871 53(12)nm,b=1.017 05(15)nm,c=1.939 3(3)nm,β=93.3°,V=1.716 13 nm3,Z=4,Dc=1.758 12 g/cm3,Mr=454.27,F(000)=924.00,R1=0.072 5,wR2=0.092 2.配合物中铜离子为五配位,处于变形的四方锥形配位环境中.分子间通过π-π堆积和氢键作用形成双分子链,然后通过π-π堆积形成二维层状结构,最后通过C-H…O弱氢键形成三维结构.     

双(2-苯并咪唑基)辛烷的合成及其晶体结构

以邻苯二胺和癸二酸为原料合成了双(2-苯并咪唑基)辛烷,其结构经1H NMR,IR,元素分析和x-射线单晶衍射表征.1属Monoclinic晶系,C2/c空间群,晶胞参数为:a=22.334(9)nm,b=9.638(4)nm,c=9.899(4)nm,a=90.00°,β=114.431(6)°,γ=90°,Dc=1...     

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.