有机杂化锑基主族异金属硫属化物的研究进展

本文综述了有机杂化锑基主族异金属硫属化物的研究进展,对它们的结构和异金属次级结构基元进行了描述、归类和总结;探讨了有机组分分别作为结构导向剂和配体两种角色所起到的不同作用;介绍了这类化合物在离子交换、光催化性能方面的研究;展望了该体系的发展趋势。     

中国金属有机化学的进展

本文综述了中国金属有机化学的进展。第一部分是主族元素金属有机化学,它包括有机硅、硼、砷和锡的化学。第二部分是过渡金属有机化学,包括过渡金属有机络合物的合成、结构和反应;过渡金属有机络合物在有机合成中的应用;均相催化和小分子活化。综述引用文献383篇。     

表面有机金属化学(Ⅰ)

简要评述了表面有机金属化学形成和发展的背景、有机金属化合物与固体表面反应的基本规律和表面有机金属配合物的结构.对表面有机金属化学与催化化学的本质联系进行了讨论.     

中空金属有机框架材料的研究进展

中空金属有机框架材料的快速发展为中空结构材料开辟了新的应用领域.本综合评述介绍了中空金属有机框架材料的制备方法,重点论述了中空金属有机框架材料及其复合材料在催化、光催化和电催化、吸附、气体分离、传感、超级电容器以及生物医学等领域的应用;同时也对具体的中空金属有机框架材料及其复合材料的制备和应用情况进行详细阐述.最后,对中空金属有机框架材料目前所面临的机遇和挑战进行了展望.     

表面有机化金属化学（Ⅰ）

阐述评述了表面有机金属化学形成和发展的前景、有机金属化合物与固体表面反应的基本规律和表面有机金属配合物的结构,对表面有机金属化学与催化化学的本质联系进行了讨论。     

用界面缩聚法合成主链含二茂铁的聚酰胺、聚脲和聚酯

最近,作者和Lenz等用阳离子型聚合反应研究了一系列含Fe、Sn和Ti的异丙烯基二茂金属聚合物,证明了这些金属有机聚合物有可能发展成兼具光、电、声、磁、耐热和抗辐射的特种高分子材料。近年来,Carraher等用界面缩聚法合成了许多ⅣA,ⅣB和Ⅴ A族的金属有机聚合物,Rauscher等用此法合成低分子量的聚酰胺和     

后修饰法合成介孔钴金属有机框架及其催化烯烃环氧化

通过后修饰水热合成法制备了新型Co2+配位的金属有机框架材料,并采用红外、电感耦合等离子分析和N2吸附等技术手段对其进行了表征。 在氧气/异丁醛反应体系中,介孔钴金属有机框架对烯烃环氧化反应表现出较高的活性。 其中,环辛烯的转化率及环氧环辛烷的选择性分别达到了94%和91%,转化频率(TOF)值为509 h-1。 催化剂循环使用5次之后,其结构和活性无明显变化。     

基于表面金属有机化学方法的硅胶表面氧化钛的制备及表征

以普通硅胶为载体, 采用表面金属有机化学合成技术, 通过“一锅”反应制备了硅胶表面金属有机钛化合物, 然后经高温煅烧获得了硅胶表面氧化钛. 采用傅里叶变换红外光谱(FTIR)、 X射线光电子能谱(XPS)、 热重分析(TG-DTA)及原子力显微镜(AFM)对硅胶表面金属有机钛化合物和表面氧化钛进行了结构表征. 结果表明, 高温煅烧过程中, 硅胶表面金属有机钛化合物不仅脱除了有机配体, 并且通氧使其表面“再生”羟基, 确保了钛的四配位形式不变; 氧化钛通过Si—O—Ti键锚定在硅胶表面, 呈分散、 孤立状态分布. 高温煅烧后, 硅胶的骨架结构保持完好.     

金属有机导体、半导体和超导体

本文综述了三类金属有机固体化合物的合成、结构与导电性能。这三类化合物是金属有机电荷转移盐,金属酞菁和会属卟啉络合物,以及金属有机夹层化合物。     

钛钼异双核配合物的合成及结构研究

合成了13个钛-钼异双核金属有机配合物,测定了它们的碳、氢、氮、钛及钼的含量,还测定了~1H、~(13)C、~(11)B及~(95)Mo NMR和红外、质谱、电导数据.确认该类配合物分子中存在Ti-Mo之间的金属-金属键和一个桥羰基键,并具有如下结构:其中R=H,Pz(吡唑基);R'=CH_3,OCH_3,OC_2H_5;X=H,CH_3;Y=H,CH_3.     

锂离子电池有机电解液研究

本文分析了影响有机电解液电导率的主要因素 ;总结了有机电解液的一般特点 ,从有机溶剂和电解质锂盐两个方面介绍了有机电解液的化学和电化学 ;概述了各常用有机溶剂的性质和近年来的研究状况 ;综述了有机电解液在电解质锂盐、有机溶剂和添加剂三个方面的研究进展 .文章最后对有机电解液研究的现状作了简要的评论     

二次有机气溶胶形成的化学过程

挥发性有机化合物的光氧化过程和光氧化产物的气态/粒子态均分过程是二次有机气溶胶形成的重要原因.二次有机气溶胶形成的化学机理主要涉及到挥发性有机化合物的光氧化过程及其一系列的后续反应,它们导致了对流层中臭氧浓度的增加和二次有机气溶胶的形成.本文将重点介绍二次有机气溶胶形成的重要化学过程和量子化学计算研究.     

Internet上的有机化学软件

综述了Internet上近年来的新的六大类型的有机化学软件的基本内容、特点与网址。     

Recent progress in organic field-effect transistor-based integrated circuits

Organic integrated circuits are undergoing rapid development with the extensive research on organic semiconducting materials and the performance improvement of organic field-effect transistors. Organic integrated circuits not only cover all the major circuit types, their complexity, degree of integration, and performance have also been improved in recent years. In this review, recent advances in the design and fabrication of integrated circuits based on organic field-effect transistors are reported. The circuits are categorized into digital and analog, which are discussed in detail centering on the structure, fabrication process, and performance. In addition, progress in the modeling and simulation of organic integrated circuits are discussed as well, as they are key issues for the future development of organic electronics.     

Interface energetics and engineering of organic heterostructures in organic photovoltaic cells

The reliable information about interface energetics of organic materials, especially the energy level alignment at organic heterostructures is of pronounced importance for unraveling the photon harvesting and charge separation process in organic photovoltaic(OPV) cells. This article provides an overview of interface energetics at typical planar and mixed donor-acceptor heterostructures, perovskite/organic hybrid interfaces, and their contact interfaces with charge collection layers. The substrate effect on energy level offsets at organic heterostructures and the processes that control and limit the OPV operation are presented. Recent efforts on interface engineering with electrical doping are also discussed.     

Internet上有机化学资源的检索与利用

Internet上丰富的有机化学资源为从事有机化学的研究人员检索文献提供了一条方便快捷的途径。介绍了化学文摘(CA)、专利及其它与有机化学相关的数据库检索,并给出了一些有用的域名地址。     

Microwave Activation in Organic Synthesis

Data on the effect of microwave irradiation on organic reactions are reviewed. Possible mechanisms of microwave activation are discussed, and some examples of acceleration of organic reactions and change of their direction and selectivity as compared to traditional thermal activation are described. Specific aspects of the application of microwave activation to various fields of organic synthesis are considered. The review covers mainly the data published over the last 5 years.     

Catalysis for green chemistry: ultrahigh loaded mesoporous solid acids

The development and applications in organic synthesis of new mesoporous solid catalysts is proving to be one of the most interesting and important subjects in green and sustainable chemistry. With high levels of organic functionality on the surface, these materials which can be considered as inorganic–organic hybrids, are compatible even with very low polarity organic media and can be used in various types of organic reactions. Some of the most interesting are solid acids such as solid sulfonic acid and solid peracids which are safe and environmentally less-damaging alternatives to conventional reagents.     

光催化有机物偶联/芳构化放氢反应研究进展

光催化氧化还原反应具有绿色、高效、安全等优势,已经在有机化学中得到广泛关注.介绍了基于光催化的偶联/芳构化放氢反应,通过使用光催化剂/催化剂的双催化体系,可用于光催化有机碳-碳和碳-杂原子成键反应,且反应中氢气是唯一的副产物.强调了有机光氧化还原体系的构建与催化机理.     

Interfacial polarization phenomena in organic molecular films

Electrostatic phenomena occurring at the interface between metal/organic and organic/organic materials are discussed from the viewpoint of dielectrics physics. Focusing on two important origins of surface polarization phenomena, orientational ordering of polar molecules and displacement of excess charges at the interface, surface polarization phenomena of organic thin films are discussed. To define the orientational order of polar molecules, orientational order parameters are introduced, and surface polarization due to the alignment of dipoles is expressed. The generation of Maxwell displacement current (MDC) and optical second harmonic generation (SHG) that are specific for surface organic monomolecular films are discussed, and some experimental evidence are shown. As an extension of the concept of surface Fermi level introduced to discuss the electrostatic phenomena due to electron transfer at the interface between metal-organic insulators, the surface Fermi level is extended to the discussion on the electrostatic phenomena of organic semiconductor materials on metals. In this paper, some experimental evidence of surface polarization originating from polar molecules and displacement of excess charges are shown. After that, with consideration of these surface phenomena, single electron tunneling of organic films are briefly discussed in association with surface polarization phenomena.