Organometallic Chemistry of Main Group 14 Elements Si, Ge, and Sn

有机和高分子化学项目的资助 支持Satoru Masamune教授的研究， 在合成新的分子键类型， 硅（Si）、锗（Ge）或锡（Sn）原子作为 通常的碳原子。 这些新的结构无疑将 导致新化学和物理性质，并可能 重要的新材料。 本研究将关注硅的两个具体方面， Ge和Sn化学：1）小分子的合成和化学 环，包括环丙烷、双环丁烷和 三环丁烷（四面体烷）体系，其完全或 部分由Si、Ge或Sn构成，例如，四硅四面体烷和 （单）硅四面体;和2）结构和 二萜烯，二硅炔， Germaxyline和Silyne类型。 这两个系列的系统是 化学上相互关联，一个系列中的化合物是 转换成另一系列。 环三金属和二金属， 四硅双环？1.1.0！丁烷衍生物已经屈服于 综合和初步基础工作已经完成。 进一步的工作将使现在已知的系统系统化。 主要 重点将放在四硅四面体的合成上， 二硅炔衍生物和母体二硅烯和二锗烯。

This grant in the Organic and Macromolecular Chemistry Program supports research of Professor Satoru Masamune, which is directed at the synthesis of new bonding types for molecules that contain silicon(Si), germanium(Ge) or tin(Sn) atoms as replacements for the usual carbon atom. These new structures will undoubtedly lead to new chemistry and physical properties and possibly to important new materials. This research will be concerned with two specific aspects of Si, Ge, and Sn chemistry: 1) the synthesis and chemistry of small rings including the cyclopropane, bicyclobutane, and tricyclobutane (tetrahedrane) systems which consist, fully or partially, of Si, Ge, or Sn, e.g., tetrasilatetrahedrane and (mono)silatetrahedrane; and 2) the construction and characterization of multiple bonds of the digermene, disilyne, germathione, and silyne types. These two series of systems are chemically interrelated and the compounds in one series are converted into those in the other series. Cyclotrimetallanes and dimetallenes and tetrasilabicyclo?1.1.0!butane derivatives have already yielded to synthesis and the initial ground work has been completed. Additional work will systematize the now known systems. Major emphasis will be on the synthesis of tetrasilatetrahedrane and disilyne derivatives, and parent disilene and digermene.