配合物[Cu(C2H8N2)2(H2O)2]2[Fe(CN)6]4H2O的合成与结构

合成了配合物[Cu(C2H8N2)2(H2O)2]2[Fe(CN)6]4H2O,通过元素分析、红外光谱、单晶X射线衍射进行了表征.配合物属单斜晶系,空间群C2/c,晶体学数据a=0.794 7(4)nm,b=0.899 8(5)nm,c=1.095 4(6)nm,β=91.380(8)°,V=0.767 7(7)nm3,Z=1,F(000)=378,R1=0.039 9,wR2=0.093 7.配合物由两个[Cu(C2H8N2)2(H2O)2]2+阳离子和一个[Fe(CN)6]4-阴离子组成.并由氢键等弱相互作用形成三维空间结构.     

金属离子主导的Schiff碱配体重构

利用2-羟基萘醛、三乙撑四胺与ZnSO4·7H2O或NiCl2·6H2O的溶剂热反应,合成了三个新的Schiff碱的配合物,即[ZnII(L1)(H2O)](1)(H2L1=N,N’-二-(2-羟基萘甲叉基)乙二胺)、[NiII(L2)]Cl·H2O(2)(HL2=9-(9-萘甲叉基,3,6,9-三氮杂壬基)-3,4;7,8-二-(1,2-萘并)-2,6-二氧,9-氮-二环[3,3,1]-3,7-庚二烷)和[NiII2(L3)(Cl)2](3)(H2L3=N,N′-二-[(2-羟基萘甲叉胺)乙基]吡嗪).晶体结构分析揭示:这些配合物中的Schiff碱配体都经历了由金属离子主导的重构,从而例证了金属离子的模板作用.此外,荧光分析表明:1具有光致发光的性质.     

六（2,4-二氯-5-氟苯甲酸根）二（邻菲咯啉）合二钕（Ⅲ）配合物的合成与晶体结构

利用微波反应,一步获得Nd(Ⅲ)与2,4-二氯-5-氟苯甲酸根和邻菲咯啉形成的三元配合物Nd2L6(Phen)2 (HL=2,4-二氯-5-氟苯甲酸,Phen=邻菲咯啉).经单晶X衍射显示该化合物为双核化合物 (Nd2C 66H 28Cl 12F6N4O 12),配合物属三斜晶系,空间群为P1[TX-].晶体学参数:a=1.057 0(9),b=1.265 7(8),c=1.680 8(4) nm;α=100.513(2)°,β=105.537(2)°,γ=109.335(1)°;F(000)=926,Z=1,V=1.951 6(2) nm3,Dc=1.614 g·cm -3,Mr=1 896.80.最终结构偏离因子R=0.097 5,Rw=0.182 0;S=1.070.最终差值电子密度的最大值和最小值分别为1 656 nm -3和-770 nm -3.     

三元配合物[Nd(C9H7O2)3(C12H8N2)]· H2O的热化学研究

目的制备三元配合物[Nd(C9H7O2)3(C12H8N2)]·H2O,并计算出其ΔfHΘm。方法在甲醇和无水乙醇溶液中由六水氯化钕、1,10-邻菲罗啉以及肉桂酸反应合成[Nd(C9H7O2)3(C12H8N2)]·H2O,并采用红外光谱对其表征。依照热力学原理和Hess定律设计热化学循环。在298.15K及常压下,利用恒温环境的微量热计测定六水氯化钕、1,10-邻菲罗啉、肉桂酸以及三元配合物在混合溶剂(体积比0.5mol/L HClO4∶DMF∶乙醇∶水=1.5∶2.0∶1.0∶1.0)中的溶解焓。结果与结论设计下列配位反应的热化学循环:NdCl3·6H2O(s)+3C9H8O2(s)+C12H8N2·H2O(s)=[Nd(C9H7O2)3(C12H8N2)]·H2O(s)+3HCl(l)+6H2O,求得了三元配合物[Nd(C9H7O2)3(C12H8N2)·H2O(s)]的标准摩尔生成焓:ΔfHΘm[[Nd(C9H7O2)3(C12H8N2)]·H2O(s),298.15K]=1 933.522±0.402kJ·mol-1。     

一个含有螺旋状水链的三维超分子配合物[Mn(C_(19)H_9N_3O_4)(H_2O)_4]·7H_2O的合成与结构表征

利用一个新的有机配体L与乙酸锰为初始反应物[L=4,5-二氮杂芴-9-[3,5-二羧基]苯亚胺],通过常规的方法合成了一个新的含有螺旋状水链的三维超分子配合物,[Mn(C19H9N3O4)(H2O)4]·7H2O(1),并通过元素分析、红外光谱和X-射线单晶衍射方法对化合物的结构进行了表征.结构分析表明化合物1属于正交晶系,P212121空间群;晶胞参数:a=0.99573(8)nm,b=1.34347(12)nm,c=2.06644(18)nm.化合物1展示了一个由新颖的螺旋状的水链和[Mn(C19H9N3O4)(H2O)4]构筑单元通过氢键作用而形成的三维超分子结构.     

不对称双Schiff碱铜配合物CuL-Cu-CuL的合成与磁性

在1∶1的乙醇水溶液中,利用配合物作配体的方法,将CuL2-与Cu2+以2∶1的摩尔比回流,制得了具有不对称结构的双Schiff碱配体H3L[H3L=N-(3-羧基水杨醛)-N’-(5-氯水杨醛)缩乙二胺]的Cu均三核配合物CuL-Cu-CuL,并通过元素分析I、R、电子光谱等方法对其进行了表征和性质研究,其组成为Cu3C34H26O9N4Cl2;在5～300 K温度范围,测定了该三核配合物的变温磁化率,拟合表明该三核配合物的Cu-Cu金属离子间为反铁磁偶合,磁偶合因子J=-61.8 cm-1,g=2.21,θ=-4.98 K.     

单核镍(Ⅱ)和钴(Ⅲ)Schiff碱配合物的合成及晶体结构

以水杨醛和对甲氧基水杨醛分别与2,2’-(邻氨基苯胺基)丙烷缩合得到2个由柔性烷基链桥连的双Schiff碱配体C29H28N4O2[H2L1]和C31H34N4O4[H2L2]·Schiff碱配体H2L1与Ni(CH3COO)2·4H2O作用、H2L2与Co(NO3)2·6H2O作用,分别得到镍(Ⅱ)和钴(Ⅲ)的Schiff碱金属单核配合物[Ni(L1)](1)和[Co(L2)]+·NO3-(2).用FTIR、元素分析和UV-vis光谱对化合物进行了表征,并采用X-射线单晶衍射测定了配合物晶体结构。结果表明2个配合物均具有稍微扭曲的八面体配位构型。     

稀土与2,4-D及邻菲罗啉配合物的研究

合成钕、钆、镝、镥等稀土 (RE)· 2 ,4-二氯苯氧乙酸 (HDCP)·邻菲罗啉 (Phen)三元配合物。用化学分析法研究配合物的组成及其在不同溶剂中的溶解性能和摩尔电导等物理性质。用红外光谱、紫外光谱、热重 -差热分析等方法研究新合成三元配合物的结构及性质。确定了配合物中 RE3+ 与 DCP- 、 Phen之间的成键特性。配合物通式为 RE (DCP) 3· Phen (RE=Nd,Gd,Dy,L u;DCP=C8H5 O3Cl2 Phen=1,10 -邻菲罗啉 ) ,配合物中 RE3+为 8配位     

苯甲酰丙酮缩水杨酰腙络镍铜配合物的合成与表征

合成苯甲酰丙酮缩水杨酰腙配体,以及其镍配合物[Ni(C17H14N2O3)(C3N2H4)]和铜配合物[Cu(C17H14N2O3)(H2O)].X射线衍射仪研究表明,镍配合物属单斜晶系,a=1.719 7(7)nm,b=1.614 7(4)nm,c=1.503 9(4)nm,β=115.830(11)°,空间群是p21/c,Z=8;而铜配合物属正交晶系,a=6.564 nm,b=10.158nm,c=24.031 nm,空间群属p212121,Z=4.最后,用荧光分析和热分析对两种配合物的性质进行表征.     

基于邻菲啰啉和醋酸根的三核锰(Ⅱ)配合物的合成、结构和性能研究

以邻菲啉(Phen)与锰盐在少量醋酸存在的CH3CN/CH2Cl(2φ=2∶1)混合溶剂中,室温挥发的方法培养出浅黄色配合物[Mn(3Phen)(2CH3COO)(6H2O)·H2O].晶体结构分析表明,配合物属于三斜晶系P-1空间群,每个结构单元中含有3个晶体学独立的锰原子,锰原子通过醋酸根的多种桥联模式处在同一直线上,分子间通过氢键组装成三维超分子配合物.同时对配合物的红外和紫外光谱性质也进行了研究.     

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.     

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.     

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.     

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.     

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.     

Achieving Unusual States of Matter Under High Pressure

正The periodicity of the elements and the non-reactivity of the inner-shell electrons are two related principles of chemistry,rooted in the atomic shell structure.Within compounds,Group I elements,for example,invariably assume the+1 oxidation state,and their chemical properties differ completely from those of the p-block elements.These general rules govern our understanding of chemical structures and reactions.Using first principles calcula-     

Exchange-Correlation and Electronic Excitation Energies from Pairing Matrix Fluctuations

We have developed an adiabatic connection to formulate the ground-state exchange-correlation energy in terms of pairing matrix linear fluctuations.This formulation of the exchange-correlation energy opens a new channel for density functional approximations based on the many-body perturbation theory.We illustrate the potential of such approaches with an approximation based on the particle-particle Random Phase Approximation(pp-RPA).This re-     

Density Functional Theory for the Response of Periodic Systems to Electric Fields Based on the Vector Potential Approach

正The electronic and nuclear(structural/vibrational)response of 1D-3D nanoscale systems to electric fields gives rise to a host of optical,mechanical,spectral,etc.properties that are of high theoretical and applied interest.Due to the computational difficulty of treating such large systems it is convenient to model them as infinite and periodic(at least,in first approximation).The fundamental theoretical/computational problem in doing so is that     

Call for Papers

<正>"The Journal of Shanghai Normal University:Mathematics"is published by Shanghai Normal University as regular issues of The Journal of Shanghai Normal University each year from 2014 in English.The editors-in-chief of the issues are professors Yuhao Cong and Maoan Han.The Journal of Shanghai Normal University was started in 1958 with