3,5-二(4-甲氧基苯基)-4,6-二(羰基吡啶基)-1-(2-吡啶基)环己烯的合成

为了进一步研究吡啶类化合物的晶体结构和固体及溶液的荧光性质,利用对甲氧基苯甲醛和2-乙酰吡啶为原料合成得到了3,5-二(4-甲氧基苯基)-4,6-二(羰基吡啶基)-1-(2-吡啶基)环己烯(C37H31N3O4,1),通过红外光谱、核磁氢谱和元素分析对其进行了表征。化合物(1)晶体结构属于单斜(Monoclinic)晶系,空间群为C2/c,晶胞参数为a=2. 941 61(6) nm,b=1. 115 04(2) nm,c=2. 193 15(5) nm,α=γ=90°,β=121. 863(2)°,V=6. 109 6(2) nm~3,分子内氢键是分子堆积的主要作用力。化合物1在室温条件下的固体荧光的激发波长为300 nm,最大发射波长为484 nm,并在531、579 nm等多处出现了发射峰,在DMF中的液体荧光的激发波长为315 nm,最大发射波长为370 nm,并且只存在一个发射峰,与固体荧光性质有很大差异,说明溶剂效应对化合物的荧光有较大的影响。     

新型N,N'-二(2-氧乙酸-3-甲氧基)苄叉乙二胺合铜(Ⅱ)的合成和晶体结构

在乙醇溶剂中,用2-氧乙酸-3-甲氧基苯甲醛、乙二胺和氯化铜(Ⅱ)进行络合反应,制备出配合物Cu(Ⅱ)L1·2H2O· CH3CH2OH(L1 =N,N'-二(2-氧乙酸-3-甲氧基)苄叉乙二胺)(1),采用元素分析、1 H NMR、IR及晶体结构测试等手段对其结构进行了表征.结果表明:配合物1为单斜晶系,C2/c空间群;晶胞参数a=1.358 1(3) nm,b=1.348 7(3) nm,c=1.689 4(4) nm,α=γ=90°,β=113. 701 (16)°,V=2.833 4(11) nm3,Z=4,Dc=1.383 g/cm3,μ=0.829 mm-1,F(000) =1236,R1 =0.0459,wR2 =0.1214.在独立晶胞中,含有1个配合物1分子、2个水分子和1个乙醇分子,Cu原子为六配位,构成以Cu原子为中心的扭曲八面体构型,并由大环组成二维平面超分子结构.     

2-氨基-3-氰基-4-(2′,4′-二氯苯基) -4H-萘并[1,2-b]吡喃的合成和晶体结构

标题化合物C22H17Cl2NO3的晶体由α-乙氧羰基-2,4-二氯肉桂腈、β-萘酚在TEBA存在下合成并经DMF与水的混合溶剂重结晶而得.其结构通过元素分析、IR和1HNMR进行了表征,用X射线单晶衍射法测定了该化合物的晶体结构.结果表明,晶体属于单斜晶系, P21/n空间群, a=1.450 5(2) nm,b=0.903 7(1) nm,c=1.491 3(2) nm, α=90°,β=101.21(1)°, γ=90°, Mr=414.27,V=1.917 5(4) nm3,Dc=1.435 g*cm-3,Z=4, μ(MoKα)=0.362 mm-1,F(000)=856.晶体结构用直接法解出,经全矩阵最小二乘法修正,最终偏离因子R=0.044 44,RW=0.117 7.化合物分子中,原子C(1), C(2), C(3), C(4), C(5) 和O(1)形成一个六元环,该六元环中 C(1)C(2) 键长为0.134 6(3) nm ,表明为双键,此六元环为船式构象.     

5-甲基间苯二甲酸、醋酸镉与1,3二(咪唑)-丙烷配合物的合成及晶体结构

合成了一个新的配合物{[Cd(mip)(1,3-Bip)·H2O]}n(H2mip=5-甲基间苯二甲酸;1,3-Bip=1,3二(咪唑)-丙烷),并测定了其晶体结构,X衍射结构分析表明:该化合物的化学式为C18H18CdN4O5,该晶体属单斜晶系,P2(1)/n空间群,晶胞参数:a=1.028 1(3)nm,b=1.142 2(4)nm,c=1.728 2(6)nm,α=90°,β=104.390(4)°,γ=90°,V=1.965 9(11)nm3,Z=4,Dc=1.631g/cm3,最终偏差因子R1=0.050 1,wR2=0.104 7(Iσ(I)),F(000)=968,中心金属Cd(II)离子与来自3个5-甲基间苯二甲酸根的4个氧原子以及两个1,3二-(咪唑)-丙烷的两个氮原子配位,形成六配位的变形八面体构型.     

1,4-二(2′,6′-二异丙基苯基)-2,2,5,5-四甲基-1,4-二氮杂-2,5-二硅杂环己烷的合成、表征及其晶体结构

用2,6-二异丙基苯胺2,6i-Pr2C6H3NH2与1当量的n-BuLi在乙醚溶液中-78℃条件下反应,以98%的产率得到2,6i-Pr2C6H3NHLi(1).用化合物1以当量比1:1与ClSiMe2CH2Cl冰水浴条件下反应,得到1,4-二(2′,6′-二异丙基苯基)-2,2,5,5-四甲基-1,4-二氮杂-2,5-二硅杂环己烷.产物经1H NMR,IR,其晶体结构经X-射线单晶衍射分析确证.晶体属单斜晶系,空间群P21/n,晶胞参数:a=8.4917(2),b=11.2259(2),c=16.2409(2);α=90°,β=98.4080°,γ=90°;V=1531.56(4)3,T=293K,Z=2,Dc=1.073mg/m3,μ=0.135mm-1,λ=0.71073,F(000)=544,结构偏离因子R=0.0402,wR=0.1197,共收集到7610个独立衍射点,其中I>2σ(I)的可观测点为3462个.     

二氯·二[1-对甲氧基苯基-3-(1,2,4三唑-1-基)-1-丙酮-N~4]合钴(Ⅲ)的合成及晶体结构

合成了配合物二氯.二[1-对甲氧基苯基-3-(1,2,4三唑-1-基)-1-丙酮-N4]合钴(Ⅱ),并测定了其晶体结构.晶体为单斜晶系,C 2/c空间群,晶胞参数:a=2.100 8(4)nm,b=0.488 88(10)nm,c=2.627 4(5)nm,β=98.10(3),°V=2.671 5(9)nm3,Z=4,Dc=1.473 g/cm3.晶体配合物为C2对称,对称轴通过钴原子,钴原子与来自配体的两个氮原子和两个氯原子配位,形成一个略变形的正四面体结构,测定了其IR及UV-v is光谱性质.     

二氯·二[1-对甲氧基苯基-3-（1,2,4三唑-1-基）-1-丙酮-N4]合钴（Ⅲ）的合成及晶体结构

合成了配合物二氯·二[1-对甲氧基苯基-3-(1,2,4三唑-1-基)-1-丙酮-N4]合钴(Ⅱ),并测定了其晶体结构.晶体为单斜晶系,C2/c空间群,晶胞参数:a=2.100 8(4)nm,b=0.488 88(10) nm,c=2.627 4(5) nm,β=98.10(3)°,V=2.671 5(9) nm3,Z=4,Dc=1.473 g/cm3.晶体配合物为C2对称,对称轴通过钴原子,钴原子与来自配体的两个氮原子和两个氯原子配位,形成一个略变形的正四面体结构,测定了其IR及UV-vis光谱性质.     

3,4-二甲氧基-4＇-硝基芪的合成和晶体结构

合成了3,4-二甲氧基-4＇-硝基芪化合物,用X-射线衍射分析方法测定了该化合物的晶体结构.该晶体属单斜晶系,空间群P21/c,a=1.3460(3)nm,b=0.7658(2)nm,c=1.4851(3)nm,β=113.46(1)0,V=1.40411nm3;Z=4,Dx=1.35g/cm3,μ=0.91cm-1.分子式C16H15NO4,Mw=285.30,F(000)=600.最终偏离因子R=0.051,Rw=0.067.结构分析表明,晶胞中的四个分子头尾对称堆积,形成具有对称中心的空间排列结构.虽然该化合物分子具有较高的二阶非线性极化率,但形成的中心对称晶体不具备二阶非线性光学性质.     

3,4-二甲氧基-4′-硝基茋的合成和晶体结构

合成了 3,4 -二甲氧基 -4′-硝基 艹氐 化合物 ,用 X-射线衍射分析方法测定了该化合物的晶体结构 .该晶体属单斜晶系 ,空间群 P2 1 /c,a=1 .34 6 0 ( 3) nm,b=0 .76 5 8( 2 ) nm,c=1 .4 85 1 ( 3) nm,β=1 1 3.4 6 ( 1 ) 0 ,V=1 .4 0 4 1 1 nm3 ;Z=4 ,Dx=1 .35 g/cm3 ,μ=0 .91 cm- 1 .分子式 C1 6H1 5NO4,Mw=2 85 .30 ,F( 0 0 0 ) =6 0 0 .最终偏离因子 R=0 .0 5 1 ,Rw=0 .0 6 7.结构分析表明 ,晶胞中的四个分子头尾对称堆积 ,形成具有对称中心的空间排列结构 .虽然该化合物分子具有较高的二阶非线性极化率 ,但形成的中心对称晶体不具备二阶非线性光学性质 .     

乙二胺缩3-醛基水杨酸Schiff碱铜单核及均双核配合物的晶体结构

合成了乙二胺双缩3-醛基水杨酸Schiff碱铜单核配合物(H2CuES)及铜均双核配合物(Cu2ES)[H4ES为N,N′-二(3-醛基水杨酸)缩乙撑二胺],并用单晶X-ray衍射法测定了晶体结构,H2CuES属单斜晶系,空间群C2/c,晶胞参数a=2.277(5)nm,b=0.975(2)nm,c=0.743(15)nm,α=90°,β=99.05(3)°,γ=90°,V=1.629(6)nm3,C18H14CuN2O6,Mr=417.85,Z=4,Dc=1.703 Mg/m3,μ(MoKα)=1.382 mm-1,F(000)=852,R=0.0507,wR=0.126 4,(I>2σ(I)),2 278个可观察衍射点,1 279个独立衍射点.Cu2ES属单斜晶系,空间群Pn,晶胞参数a=1.167(2)nm,b=1.182(2)nm,c=1.399(3)nm,α=90°,β=113.25(3)°,γ=90°,V=1 773(6)nm3,C18H16Cu2N2O8,Mr=515.40,Z=16,Dc=1.931 Mg/m3,μ(MoK)α=2.454 mm-1,F(000)=1 040,R=0.050 7,wR=0.115 1,(I>2σ(I)),4 733个可观察衍射点,2 792个独立衍射点.     

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。     

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.     

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.