Systematic Development of New Organic Conductors

这项研究的目标是通过对有机半导体、金属和超导体电子性质的详细了解和化学控制，系统地开发新的有机半导体、金属和超导体。这项研究首先将集中于合成四甲基四氢富瓦烯及其电荷转移和络合自由基阳离子盐；制备一系列二环丁烯四氢硫代富瓦烯及其相应的盐；以及一些四氧富瓦烯及其盐的合成。为了指导合成计划，将对这些盐的物理性质、电导率、热电性能、磁化率和扫描隧道显微镜进行研究，以及来自已知供体的新的电荷转移和复杂自由基阳离子盐的研究。下一代微电子设备很可能依赖于新的有机、有机金属和无机材料的发展。因此，这项研究的目的是通过对有机半导体、金属和超导体电子性质的详细了解和化学控制，系统地开发新的有机半导体、金属和超导体。这项研究最初将集中在合成选定的化合物及其电荷转移和络合自由基阳离子盐。为了指导合成计划，将对这些盐的物理性质、电导率、温差电势、磁化率和扫描隧道显微镜进行研究，并研究来自已知供体的新的电荷转移和复杂的自由基阳离子盐。许多新的化学和物理研究被设计来帮助阐明金属-有机电荷转移盐中的开关和记忆机制。

The goal of this research is to develop systematically new organic semiconductors, metals, and superconductors through a detailed understanding and chemical control of the electronic properties. The research will initially focus on the synthesis of tetramethyltetratellurafulvalene and its charge-transfer and complex radical cation salts; preparation of a series of dicyclobutenotetrachalcogenafulvalenes and their corresponding salts; and the synthesis of a number of tetraoxafulvalenes and their salts. To guide the synthetic program, studies will be conducted on physical properties, electrical conductivity, themoelectric power, magnetic susceptibility, and scanning tunneling microscopy on these salts as well as on new charge- transfer and complex radical cation salts from known donors. The next generation of microelectronic devices is likely to depend on the development of new organic, organometallic, and inorganic materials. Thus, the aim of this research is to develop systematically new organic semiconductors, metal, and superconductors through a detailed understanding and chemical control of the electronic properties. The research will initially focus on the synthesis of selected compounds and their charge- transfer and complex radical cation salts. To guide the synthetic program, studies will be conducted on physical properties, electrical conductivity, thermoelectric power, magnetic susceptibility, and scanning tunneling microscopy on these salts and on new charge-transfer and complex radical cation salts from known donors. A number of new chemical and physical studies are designed to help elucidate the switching and memory mechanism in metal-organic charge transfer salts.