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首页> 外文学位 >Part 1. Novel second-order nonlinear optical carbon-60-based chromophores. Part 2. Cyclic polyeneynes: A synthetic approach to single-walled carbon nanotubes.
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Part 1. Novel second-order nonlinear optical carbon-60-based chromophores. Part 2. Cyclic polyeneynes: A synthetic approach to single-walled carbon nanotubes.

机译：第1部分。新颖的基于碳60的二阶非线性光学发色团。第2部分。环状多烯：单壁碳纳米管的合成方法。

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摘要

It is well known that C60 is a great electron acceptor; cyclic voltammetry and metal reduction experiments have shown that the carbon cage can accept up to 6 electrons forming a hexaanion. Several proposed applications of C60 and it derivatives take advantage of their electron affinity: for example, derivatives are used as electron acceptors in polymer-supported photovoltaic devices, artificial photosynthetic systems, superconductors, organic metals, organic ferromagnets, etc. In the field of photonic devices, organic nonlinear optical (NLO) materials may become attractive due to several advantages over inorganic materials.;Organic NLO chromophores are generally composed of an electron donor and electron acceptor couple connected through a conjugated pi-system, but some homoconjugated examples are known in the literature. We envisaged that C60 being a good electron acceptor could give rise to a new class of organic NLO chromophores if appropriately functionalized. The first part of this thesis describes the synthesis and physical properties of some C 60 based NLO chromophores.;The second part will be concerned with an approach to a chemically controlled synthesis of single walled carbon nanotubes. The strategy as well as the synthesis of building blocks to build tubular structures will be illustrated.
机译：众所周知，C60是电子受体。循环伏安法和金属还原实验表明，碳笼可以接受多达6个电子形成六价阴离子。 C60及其衍生物的几种拟议应用利用了它们的电子亲和力：例如，衍生物在聚合物支持的光伏设备，人造光合作用系统，超导体，有机金属，有机铁磁体等中用作电子受体。在光子领域装置中，有机非线性光学（NLO）材料可能会比无机材料更具吸引力。有机有机NLO生色团通常由通过共轭pi系统连接的电子供体和电子受体对组成，但在本文中已知一些同共轭的例子文献。我们设想，如果适当地官能化，则C60是良好的电子受体，可以产生一类新的有机NLO生色团。本文的第一部分描述了一些基于C 60的NLO发色团的合成和物理性质。第二部分将涉及化学控制的单壁碳纳米管的合成方法。将说明该策略以及用于构建管状结构的构建块的合成。

著录项

  • 作者

    Comito, Angelo.;

  • 作者单位

    University of California, Los Angeles.;

  • 授予单位 University of California, Los Angeles.;
  • 学科 Organic chemistry.
  • 学位 Ph.D.
  • 年度 2002
  • 页码 144 p.
  • 总页数 144
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

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