轴上吡啶配位的含酰胺基的新型Cu(Ⅱ)和Fe(Ⅲ)配合物的合成及性能研究

本文合成了二种新的铜(Ⅱ)和铁(Ⅲ)配合物,Na_2[Cu(CHBen)(Py)_2]·H_2O和Na[Fe(CHBen)(Py)_2](CHBenH_4:N,N′-双-(3,5-二氯-2-羟基苯酰)-乙二胺;Py:吡啶)。经元素分析,红外,电子光谱,电导,磁矩及顺磁共振谱(ESR)等测定已推定二配合物中Cu(Ⅱ)和Fe(Ⅲ)的配位环境均为畸变八面体,Fe(Ⅲ)为高自旋态。文中指派了Na_2[Cu(CHBen)(Py)_2]·H_2O的d-d带归属,并对其ESR谱及有效磁矩进行了讨论。     

一种含Pr(Ⅲ)配合物的合成、晶体结构及光物理性能研究

采用水热方法合成了1种Pr(Ⅲ)配合物,[Pr(2,5-pdc)(Ac)(H2O)·2H2O]n(2,5-pdc=2,5-吡啶二羧酸根),通过X射线衍射确定了配合物的晶体结构.结果表明,该配合物为单斜晶系,P2(1)/c空间群.在配合物中,Pr(Ⅲ)离子是9配位的,通过醋酸根和2,5-吡啶二羧酸根将配合物连成3D网状结构.室温下测定了配合物晶体粉末的IR光谱,UV-Vis-NIR光谱以及可见区和近红外区的发射光谱.重点研究配合物的发光性能,该配合物在近红外区表现出Pr(Ⅲ)离子的特征发射带,与Pr(Ⅲ)离子的理论发射带相比发生了红移和劈裂现象,可以从配合物的UV-Vis-NIR吸收光谱中得到佐证.     

稀土色氨酸固态配合物的光声光谱研究

合成了Tb(Trp) 3Cl3·H2 O、Dy(Trp) 3Cl3·H2 O和Ho(Trp) 3Cl3·H2 O固态配合物 ,在30 0～ 80 0nm测定并解释了配合物的光声光谱 ,从无辐射跃迁角度研究色氨酸固态配合物的能级状况和分子内能量传递过程 ,结合荧光光谱研究了色氨酸固态配合物的发光特性 ,结果表明固态配合物中色氨酸配体可有效敏化Tb3+离子的发光 ,而由于热去几率速率增大导致配体向Dy3+的能量传递效率降低 .首次将相位分辨光声分析法用于Ho(Trp) 3Cl3·H2 O配合物的谱峰解析 ,通过光声谱同相和正交相信号可以计算配体光声吸收的位相为 10 6° ,位相改变 90°后就得到仅与Ho3+相关的光声光谱 .相位分辨光声光谱法不受谱峰的形状和重叠程度的限制 ,仅与不同吸收中心产生的位相有关     

二茂铁基氨基醇汞(Ⅱ)配合物的合成与表征

合成了3种二茂铁基氨基醇2-羟基-2-二茂铁基丙胺(FcM)、2-羟基-2-对甲氧苯基-2-二茂铁基乙胺(Fcp-MOB)、2-羟基-2-对氯苯基-2-二茂铁基乙胺(Fcp-CIB),使之分别与氯化汞反应,生成3种新型汞(Ⅱ)配合物Hg(FcM)Cl2、Hg(Fcp-MOB)Cl2、Hg(Fcp-ClB)Cl2．通过元素分析、红外光谱、核磁共振氢谱、差热-热重分析和摩尔电导,对新配合物的组成、结构和性质进行了表征,并初步确定了配合物的结构．     

稀土配合物RE(pic)_3L的合成、荧光性质及与ct-DNA的作用方式

合成了4种N,N-乙基,苯基-N’-苯基-1,1’-联萘-2,2’-二(氧杂乙酰胺)(L)稀土配合物.通过元素分析、红外光谱、紫外光谱、差热-热重和摩尔电导率的分析,确定配合物的组成为RE(pic)3L[RE=La(Ⅲ),Eu(Ⅲ),Tb(Ⅲ),Ce(Ⅲ)],稀土离子的配位数为10,其在CH3OH溶液中属于非电解质.该系列配合物的荧光光谱表明,Eu(Ⅲ)配合物的荧光强度远大于Tb(Ⅲ)配合物,说明配体L的三重态能级与Eu3+的激发态能级匹配较好.通过紫外光谱、荧光光谱和黏度法对配合物与ct-DNA之间的作用方式进行了初步研究,结果表明,配合物与ct-DNA之间存在着插入作用.     

二氯化二(2-氨基甲基吡啶)(二水)合镍的晶体结构表征及其与瓜环的主客体相互作用

以氯化镍与2-氨基甲基吡啶反应合成了配合物二氯化二(2-氨基甲基吡啶)(二水)合镍([Ni(2-ampy)2·(H2O)2]·Cl2).利用IR光谱、X-射线单晶衍射技术对其结构进行表征.通过荧光光谱研究了配合物与六、七、八元瓜环的相互作用.结果表明六、七、八元瓜环与配合物形成包结比为1:1的配合物.稳定常数为103数量级.     

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.     

“栅栏”型卟啉铁（Ⅱ）,钴（Ⅱ）配合物的轴向配位性能

以可见一紫外分光光度法测定“栅栏”型卟啉铁(Ⅱ)、钴(Ⅲ)与某些含氮配体作用的平衡常进,以红外光谱法测定它们的羰基配合物的C—O振动频率。结果表明:卟啉铁(Ⅱ)与含氮配体的平衡常数既与配体的碱性有关,也与配体的空间位阻有关;卟啉铁(Ⅱ)与配体的平衡常数大于卟啉钴(Ⅲ)。     

钐和钆与亚甲基双膦酸四异丙基酯及邻菲哕啉固体配合物的合成和表征

分别以氯化钐和氯化钆与亚甲基双膦酸四异丙基酯(L)和邻菲哕啉(phen)合成了四种固体稀土配合物SmL2Cl3(H2∶O)5(Ⅰ)、Gd2L3Cl6(H2O)6(Ⅱ)、Sm2L3(phen)2Cl6(H2O)10(Ⅲ)和Gd2L3(phen)2Cl6(H2O)4(Ⅳ).用元素分析、TG-DTA分析、红外光谱、1H与31P核磁共振谱和荧光光谱对配合物的组成、结构和光谱性质进行了表征.     

Bi(Ⅲ)-水杨醛肟配合物极谱吸附波的研究及其应用

用线性扫描伏安法研究了Bi(Ⅲ)-水杨醛肟(简称HSAO)体系在不同缓冲溶液中的极谱行为,实验表明在0.025mol-L-1NH3-NH4Cl(pH8.0)缓冲溶液中,Bi(Ⅲ)与水杨醛肟形成的配合物于-0.82V(vs.SCE)处产生一灵敏的还原波.二阶导数波峰电流与Bi(Ⅲ)浓度在3.0×10-8mol-L-1～5.0×10-6mol-L-1范围内呈良好的线性关系,检测下限为2.0×10-8mol-L-1,测得电活性配合物组成为Bi(Ⅲ):HSAO=1:1.探讨了电极反应过程的机理.     

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.