双核铕－邻甲基苯甲酸－邻菲罗啉三元配合物的晶体结构

双核铕－邻甲基苯甲酸－邻菲罗啉三元配合物的晶体结构王瑞芬，王明昭，金林培，蔡冠梁（北京师范大学化学系，１００８７５，北京；解放军防化指挥工程学院，１０２２０５，北京；第一作者，４４岁，女，副教授）关键词铕；三元配合物；晶体结构分类号Ｏ７４１．６；Ｏ６...     

复变函数论教学内容与教学方法的新探

随着高中数学教材内容的不断更新,高师院校复变函数论课程内容和教学方法的调整势在必行。本文在分析现状的前提下,就复变函数论课程内容和教学方法进行了一些有益的探索。     

2′—羟基—5′—甲基苯乙酮—铜—三苯基膦三元配合物的电化学合成及光谱表征

在非水溶剂中用直接电化学方法合成了金属铜与2′ 羟基 5′ 甲基苯乙酮(HMAP)及三苯基膦(pph3)的三元配合物,产物经元素分析、拉曼光谱、核磁共振表征及合成过程电流效率测定,该配合物组成为(MAP)Cu(pph3)2,其中Cu和MAP 的两个氧原子配位形成一个五元环结构,同时还和两个中性三苯基瞵配位,形成金属Cu的一价配合物.还探讨了电合成条件,反应机理以及中性配体在低价配合物形成过程中的作用.     

Biological role of major transplantation antigens in T cell self-recognition

Summary The proposal is made, illustrated and supported by experimental evidence that T cell-mediated immunopathology triggered initially by low- or non-cytopathic infectious agents may cause diseases, susceptibility to which is linked to the major histocompatibility gene complex.This summary is an updated version of the paper given on the occasion of the Paul Ehrlich Prize ceremonies in 1983; it was also presented at the meeting New Trends in Allergy II in München 1985, and is reproduced here with the permission of Springer Verlag, Heidelberg.     

一种含5-硝基间苯二甲酸和菲咯啉配体的超分子化合物：结构表征，光致发光和电化学性能

采用水热法合成了含混合配体的铜配合物[CuClPhen]⁺·[HL]^-·2H₂O（HL=5-硝基间苯二甲酸,Phen=1,10-菲咯啉）,其结构由单晶X射线晶体学确定。标题化合物在三斜空间群P-1的晶体化合物。标题化合物的晶体数据：C₃₂H₂₄ClN₅CuO₈,M_r = 704.54,a = 10.4044(5),b = 12.3912(9),c = 12.4632(9)Å,α = 73.859(6),β = 85.036(5),γ = 78.202(5)^°,V = 1510.09(17) ų,Z = 2, T = 293(2) K,D_c = 1.549 g/cm³,μ(MoKα) = 0.874 mm^-1,F(000) = 720.0,R = 0.0554,wR = 0.1434,GOF = 1.098。当用作超级电容器电极材料时,所制备的配合物具有高比电容、良好的循环稳定性和优良的倍率性能。在1mol/L KOH溶液中,最大比电容可达到69 F/g。在2 A/g电流密度下,10000次循环后比电容保持率为72%。标题化合物是一种潜在的红色光致发光材料。     

Fuzzy复数的Fuzzy运算

复数ａ＋ｂｉ和二无数对（ａ,ｂ）可建立一对应关系,对定义在复数域上的Ｆｕｚｚｙ集的研究可转化为欧氏空间Ｒ２上的Ｆｕｚｚｙ集的研究,假定,本文中研究了Ｆｕｚｚｙ复数的加法和乘法运算,对已有的有关结果进行了改进。     

采用HK模型的防空反导作战网络建模分析

采用HK网络模型对防空反导作战网络进行建模,对网络度分布、集群系数、平均距离的统计特性进行分析。将网络模型与典型树状结构的防空反导网络和基于BA无标度模型的网络进行比较,表明基于HK模型的防空反导作战网络具有较好的集群系数和无标度特性,同时表明改变TF连接概率进行防空反导网络设计具有更好的灵活性。     

Progress in magnetic couple system of nitroxidemetal complexes

Metal_radical method is an effective approach to synthesizing magnetic molecular materials. With the development in decades, the study of nitroxide_metal complexes has made great progress in model, theoretical treatment and design of molecules. Several mechanisms of the metal_radical magnetic coupling are discussed. Molecular magnetic project of nitroxide_metal complexes has made fruitful achievements, but crystal magnetic project is difficult to be controlled, and it is a challenge to chemists. The studies on nitronyl nitroxide_metal complexes are summarized. At present, there are three major approaches to increasing the T c of the metal_radical compounds: (ⅰ) Searching for nitronyl nitroxide ligands that can yield 3_D ferro_ or ferrimagnetic structures; (ⅱ) decorating the structure of radicals with the aim to enhance the coordinate capability of radicals; (ⅲ) grafting polynitroxide radicals as a versatile bridge. The third approach, namely searching for polynitroxide ligand, will serve as a hopeful strategy for exploring higher T c radical molecule_based magnets.