一种新的环金属化钌配合物的合成与表征

合成了一种新的C,N-配位型环金属化钌染料敏化剂Ru-1,通过核磁共振氢谱以及红外光谱对该配合物进行了表征．由紫外-可见吸收光谱表明：该配合物的金属到配体的电荷转移跃迁（MLCT）吸收最大可达546nm,比传统的明星染料N3（[Ru（dcbpy）2（NCS）2],dcbpy=2,2＇-二联吡啶-4,4’-二羧酸）红移约10nm,且摩尔消光系数提高了约1．5倍．由此说明该配合物在长波方向表现出比N3更为优良的吸收性能,这对提高染料敏化纳米晶太阳能电池的光电转化效率十分有利．     

1,10-邻菲啰啉与4,5-双二苯基膦-9,9-二甲基氧杂蒽混合配位铜(Ⅰ)的合成与表征

通过1,10-邻菲啰啉二亚胺配体和4,5-双二苯基膦-9,9-二甲基氧杂蒽双膦配体合成了二亚胺-双膦混合配位铜(I)的配合物.采用X线单晶衍射法测定该配合物的结构,对其进行核磁共振氢谱的表征.结果表明:该化合物为1个铜原子与2个氮原子、2个磷原子配位形成的单核配合物;紫外光谱表明配合物在267 nm和393 nm处有2个吸收带;磷光光谱表明配合物发光峰位于577 nm处,在固体状态下发光性能比较稳定.     

基于1,10-邻菲罗啉衍生物的两亲性钌配合物的合成及其光电转化性质

合成了2个含咪唑环的邻菲罗啉类两亲性钌(Ⅱ)联吡啶配合物(Ru-1和Ru-2). 通过紫外可见吸收光谱、发射光谱、核磁共振氢谱及元素分析对其结构进行了表征.研究了该配合物作为光敏化剂制备的纳米晶太阳能电池的光电转化性质.结果表明: 烷氧基供电子基的引入改善了配合物的金属到配体的电荷转移跃迁 (MLCT) 吸收, 其作为敏化剂制备的电池的光电转化性质明显提高.     

一种新型芳基脒配合物的合成、晶体结构及表征

在溶剂热条件下,2-氨基-1,3,4-噻二唑、苯乙腈与二价镍离子原位合成了一个新的芳基脒配合物1,经元素分析、红外光谱、紫外光谱及核磁共振氢谱给予表征,并通过X射线单晶结构解析确定了配合物的结构.配合物1为单核配合物,C20H18N8NiS2,镍(Ⅱ)中心平面四方配位几何构型,为单斜晶系,P121/n1空间群,a=0.992 49(18) nm,b=0.744 58(15) nm,c=1.464 3(3) nm,α=γ=90°,β=120°,Z=2,V=1.081 8(4) nm3,R1=0.049 5,wR2=0.152 6.     

呋苄青霉素钾与Cu2+配合物的合成及配位研究

呋苄青霉素钾是一种广谱抗生素 ,文章通过共沉淀法合成了呋苄青霉素钾与铜 ( )的固体配合物 ,通过红外光谱 ,热谱 ,扫描电镜等手段确定了呋苄青霉素钾与 Cu2 形成了稳定的配合物 ,初步推断出配位点 ,最后通过核磁共振氢谱进一步确定了该配合物的配位位置 ,并探讨了配位机理     

双香草醛缩乙二胺及其Y(Ⅲ)配合物的合成与表征

在非水溶剂中,首次合成出了双香草醛缩乙二胺Schiff碱配体(L)及其苦味酸钇配合物。通过元素分析、摩尔电导、红外光谱、紫外光谱、差热-热重分析和核磁共振氢谱等分析表征,推测出配合物的可能组成为[Y.L(P ic)2](Pic).3CH3CH2OH,Y(Ⅲ)离子的配位数为6。     

[(n-C4H9)2Sn(2-PyCO2)2(H2O)] 的合成、晶体结构

利用三丁基氯化锡和2-吡啶甲酸在三乙胺存在下以1:1摩尔比反应,合成了非预期有机锡配合物[(n-C4H9)2Sn(2-PyCO2)2(H2O)].通过元素分析、红外光谱、核磁共振氢谱和X-射线单晶衍射对其结构进行了表征.测试结果表明,该配合物为单体结构,锡原子呈七配位畸变五角双锥构型.通过配位水分子和游离羰基氧原子的氢键作用,形成了二维网状结构.     

对羟基苯甲醛缩氨基硫脲及其Cu(Ⅱ),Ni(Ⅱ)配合物的合成与表征

报导对羟基苯甲醛缩氨基硫脲及其Cu(Ⅱ),Ni(Ⅱ)配合物的合成,通过元素分析、红外光谱、紫外光谱以及氢核磁共振谱表征了所合成化合物的组成和配位状态。     

硫酸三(1-甲基)咪唑合钴(II)、硫酸六咪唑合钴(II)的合成和性质研究

合成了硫酸三(1-甲基)咪唑合钴和硫酸六咪唑合钴两种新的配合物。通过元素分析、热重、差热分析、红外光谱、紫外光谱、核磁共振谱、x射线粉末衍射图、磁化率和电导测定等研究了这两配合物的组成和性质,探讨了1-甲基咪唑钴(Ⅱ)配合物中Co(Ⅱ)配位不饱和的原因。     

羧酸铕配合物的合成、表征及光致发光

合成了Eu( )与β-苯甲酰丙酸,β-苯甲酰丙烯酸,邻苯甲酰苯甲酸的固态配合物.经元素分析、稀土络合物滴定、核磁共振氢谱和热谱分析确定其组成为:OOCHCHCOO)3.H2O、EuCEu(C6H5CH2CH2COO)3.H2O、CEu(C6H5O(CC6H5C6H4COO)3·H2O.红外光谱表明,配体通过羧基氧与铕离子配位,羧基以双齿配位.配合物的荧光光谱表明,邻苯甲酰苯甲酸铕的荧光发射强度在三个系列中最强,并从配体结构出发,探讨了该荧光强弱顺序的成因,合理的解释了实验结果.     

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.     

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     

On the Thermodynamic Limit for Responses to Static Electromagnetic Fields

For molecular systems,the quantum-mechanical treatment of their responses to static electromagnetic fields usually employs a scalar-potential treatment of the electric field and a vector-potential treatment of the magnetic field.Although the potential for each field separately is associated with the choice of an(unphysical)origin,the precise choice of the origin for the electrostatic field has little consequences for the results.This is different for the     

An affordable accurate evaluation of the binding conformations predicted by molecular docking studies in bio-system

Franck-Condon factors bridge the gap between theoretical modeling and experimental observations for molecular electronic spectroscopy and electron transfer.Under the displaced harmonic oscillator approximation,multidimensional Franck-Condon factors are decomposed into a product of many one-dimensional(1D)Franck-Condon(FC)factors,and each 1D-FC factor is associated with one Huang-Rhys factor that determines the leading contribution of     

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