几个金属卤素簇的合成与性能研究

The hydrothermal reaction of CuBr2 and CuBr with phen·H2O （phen= 1,10-phenanthroline） in a molar ratio of 1：1：1.5 gave birth to the first copper-halo cationic cluster [Cu2^Ⅱ Cu2^Br4 （phen）4 ] ^2＋（1） with tetranuclear anionic cluster [Cu4Br6]^2-. Changing the precursors or their molar ratios, two mononuclear complexes [Cu（phen）2Br]Br·H2O （2） and [Ni（phen）3][CuCl2]2 （3） as well as two unusual copper-halo chains found in polymers [Cu2Br2（phen）]∞ （4） and [Cu^ⅡCu3^ⅠBr2Ⅰ3 （phen）2 ]∞ （5） were obtained. The （Cu2Br2）∞ chain of 4 looks like a linearar ray of hexagons based on fused Cu3Br3 units, and the linear （Cu3Ⅰ3Br^-）∞ chain of 5 is an alternate combination of the rhombic Cu2I2 cores and the Cu4I4Br2^2- units. In addition, the hydrothermal reaction of CuBr2 with NA（NA=nicotinic acid） or INA （INA =isonicotinic acid） resulted in the syntheses of two compounds [CuBr（NA）] （6） and [CuBr（INA）]∞（7） containing staircase chain. Among them the third-order non-linear optical properties of 2, 5, 6 and 7 were investigated and all exhibit the reverse saturable absorption （α2〉0） and self-defocusing performance （n2〈0）.     

纳派林类二萜生物碱研究

纳派林类化合物是一类重要的二萜生物碱,本文概述了此类化合物的化学结构,波谱特征及某些化学反应,着重介纠~1H慢~13C NMR 的特征。并列表说明所有已知的天然存在的纳派林类化合物的结构、理化性质及植物来源等。     

原油三维荧光分析中猝灭现象辨析

研究了原油的三维荧光猝灭现象，指出浓度过高是原油产生荧光猝灭的主要原因，将会造成三维荧光等值线图畸变，致使定量分析数据失真，谱图特征变异，难以获取原油特征三维指纹图。提出了避免荧光猝灭的预试方法，并列出了不同类型原油的最佳测试浓度。     

A New 4.0-Generation Dendrimer Phosphorescence Labeling Reagent and Its Application to Determination of Trace Alkaline Phosphatase by Affinity Adsorption Solid Substrate-room Temperature Phosphorimetry

A Triton X-100-4.0G-D （4.0G-D refers to a 4.0-generation dendrimer） was brought forward as a new phosphorescence labeling reagent. Two types of specific affinity adsorption （AA） reactions （direct method and sandwich method） were carried out between the labeling product of Triton X-100-4：0G-D-Wheat germ agglutinin （WGA） and alkaline phosphatase （ALP）, the product of AA reaction preserved the good characteristics of room temperature phosphorescence （RTP） of 4.0G-D and △Ip of the product was proportional to the content of ALP. According to the fact stated above, a new method for the determination of trace ALP by affinity adsorption solid substrate-room temperature phosphorimetry （AA-SS-RTP） was established on the basis of WGA labeled with the Triton X-100-4.0G-D. The detection limits were 0.20 ag·spot^-1 （corresponding concentration： 5.0×10^-16 g·mL^-1, namely 5.0×10^-18 mol·L^-1） for a direct method and 0.14 ag·spot^-1 （corresponding concentration： 3.5×10^-16 g·mL^-1, namely 3.5×10^-18 mol·L^-1） for a sandwich method, respectively. For their high sensitivity, good repeatability and high accuracy, the direct method and sandwich method have been successfully appfied to determine the content of ALP in human serum, and the results were coincided with the clinical detection results of the enzyme-linked immunosorbent assay method by the Zhangzhou Hospital of Traditional Chinese Medicine. Meanwhile, the mechanism for the determination of trace ALP by AA-SS-RTP was discussed.     

流动注射-原子吸收法间接测定扑尔敏

扑尔敏(马来酸氯苯那敏)是一种最常用的抗组织胺类药物。对其含量的测定，药典法采用非水滴定法和紫外分光光度法，此外还有分光光度法、电化学方法、高效液相色谱法以及ICP发射光谱间接测定法。这些方法均存在操作步骤繁琐的缺点。雷氏盐在酸性介质中可与大部分的有机碱(胺类、季铵盐类、含氮杂环类、生物碱类)等药物定量反应，生成难溶于水的络合物，故可以进行这些药物的鉴别、分离和含量测定。采用流动注射方法在线快速分离原子吸收法测定     

CVD Reactions of TiCl4 with Ammonia： a Quantum Chemical Study

Based on density functional calculations, the mechanism and the energetic course of the chemical vapor deposition （CVD） reaction of TiCl4 with NH3 were studied at the level of B3LYP with 6-311g（d） basis set. Furthermore, the polymerization processes of dimerization, trimerization and tetramerization were investigated. The calculation results indicate that the formation of polymers is favored at the elimination reaction. On the basis of the calculated energetics, a possible mechanism of the reduction reaction has been proposed.     

中國烏头之研究 Ⅱ.紫草烏根中的植物鹼

从云南大理县产的紫草乌根中,另分得一新植物硷,暂命名为紫草乌硷乙(isoaconitine),分子式为C_(34)H_(47)O_(11)N,熔点为144—146°,[α]_D~(20.5)=+28°,并制成多种结晶盐。紫草乌硷乙在微酸性或硷性溶液中水解时,除分得醋酸和六茴酸外,还分得胺醇C_(24)H_(37)O_7N,熔点不明显,约在118—123°,已制得其结晶的氢溴酸盐和四乙酸酯。紫草乌硷乙的部分示性式为C_(19)H_(20)(OH)_3(OCH_3)(N—C_2H_5)(CH_3OC_6H_4COO)(CH_3COO)。     

八钼酸根阴离子有机胺化合物的合成与结构

由MoO3和(CH3)3N或(C2H5)3N反应合成了两种分子组成分别为[(CH3)3NH]4Mo8O26·2H2O(1)和[(C2H5)3NH]4Mo8O26·2H2O(2)的化合物.单晶X衍射结构分析表明,化合物(1)属三斜晶系,空间群为P1,晶胞参数a=1.0500(2)nm,b=1.0533(2)nm,c=1.0765(2)nm,α=100.21(3)°,β=101.93(3)°,γ=118.47(3)°,V=0.9698(3)nm3,R1=0.0524.化合物(2)属单斜晶系,空间群为P21,晶胞参数a=1.1512(2)nm,b=1.3097(3)nm,c=1.7610(4)nm,β=101.40(3)°,V=2.6028(9)nm3,R=0.0428.结构分析表明,两种化合物中Mo8O264-阴离子均发生畸变,有机阳离子增大,Mo-O键键长缩短,阴离子畸变增大.     

Li+与线性碳链HC2n-体系相互作用的理论研究

应用密度泛函理论(DFT)和多体微扰理论(MP2),对Li 与线性碳链HC2n-形成的体系HC2nLi(n=1~8,C∞v)的平衡几何构型、谐振动频率、第一绝热电离能和结合能进行了研究并计算了HC2n-与Li 之间相互作用的势能曲线。计算结果表明,Li 可与线性碳链HC2n-形成稳定的化合物HC2nLi;化合物的电离能和结合能与体系大小n之间存在非线性关系。基于计算结果,得到了体系的绝热电离能和结合能与体系大小n的解析表达式。     

大气中阻塞形成的一个理论

本文提出了偶极子阻塞形成的一个新理论。文中首先使用多重尺度方法研究了基本气流具有弱切变的非线性正压Rossby波,得到了它的波包满足非线性Schr-dinger方程。指出:当Rossby波的波数满足k~2/3相似文献