The investigation of the chemistry of multiphotochromic systems for molecular logic gate

这个研究项目的目的是制备和研究可以用作逻辑门的分子系统。几个光致变色系统在一个分子系统中的位置，设计成它们可以依次和独立地打开和关闭。光致变色基团的不同状态依次以可控的方式调制pi-电子系统的扩展及其相关性质，如紫外、可见光和近红外区的吸收最大值和消光系数。pi-电子系统可以使用两个或多个开关（相当于开/关）扩展，缩短或重新路由的系统满足光操作分子逻辑门的基本要求。最先进的实施方案将是形成光学可重新编程的微电子路由器、逻辑门或场效应晶体管。这一切的基础是对这些系统的光化学研究和合适材料的设计。这是设想的研究计划的意图。

This research programme has the objective to prepare and investigate molecular systems, which can be used as logic gates. The positioning of several photochromic systems within a molecular system, designed so that they can be switched on and off sequentially and independently is planned. The different states of the photochromic groups modulate in turn in a controlled manner the extension of pi-electron systems and their associated properties, such as absorption maxima and extinction coefficients in the UV, visible and near IR region. Systems where the pi-electron systems can be extended shortened or rerouted using two or more switches (equivalent to on/off) fulfil the fundamental requirements for light operated molecular logic gates. The most advanced embodiment would be the formation of optically reprogrammable micro-electronic routers, logic gates or field effect transistors. The basis for all this is the investigation of the photochemistry of such systems and the design of suitable materials. This is the intention of the envisaged research proposal.