CAJ | 학술논문

详细综述了一些用于制备分子尺寸器件的化学策略的设计、发展和演示.其设计思想是通过各式各样的光诱导的电子、能量和质子转移机理,氧化还原反应,构象变化以及超分子原理,分别将2个信息量丰富而结构又比较简单的四硫富瓦烯和光致变色的螺吡喃分子,与它们性质互补的不同组分集成在一起来构建功能分子器件,用于完成快速的数字处理和传输.首先凭借四硫富瓦烯丰富的电化学性质,大量的D-A-D超分子和环轴烃分子已经被设计并成功合成.时间分辨的吸收和荧光光谱研究表明,这些D-A-D超分子发生分子内的光诱导的电子转移反应的能力,可以通过不同的桥联基团进行有效调控.STM研究则首次发现并开辟了环轴烃分子在纳米记录和高密度信息储存方面的应用研究.同时,也详细描述了如何充分利用光致变色的螺吡喃分子独特的电子、能量和质子转移能力去设计超分子组合,并通过光和适当的化学试剂来控制这些组合的吸收、荧光和导电性质的方法.根据这些组合的光谱和电化学行为,构建了一系列新型的分子开关、逻辑门和分子回路.最后,展示了用于设计合成新类型开环结构稳定的荧光螺吡喃分子的独特见解.
상세종술료일사용우제비분자척촌기건적화학책략적설계、발전화연시.기설계사상시통과각식각양적광유도적전자、능량화질자전이궤리,양화환원반응,구상변화이급초분자원리,분별장2개신식량봉부이결구우비교간단적사류부와희화광치변색적라필남분자,여타문성질호보적불동조분집성재일기래구건공능분자기건,용우완성쾌속적수자처리화전수.수선빙차사류부와희봉부적전화학성질,대량적D-A-D초분자화배축경분자이경피설계병성공합성.시간분변적흡수화형광광보연구표명,저사D-A-D초분자발생분자내적광유도적전자전이반응적능력,가이통과불동적교련기단진행유효조공.STM연구칙수차발현병개벽료배축경분자재납미기록화고밀도신식저존방면적응용연구.동시,야상세묘술료여하충분이용광치변색적라필남분자독특적전자、능량화질자전이능력거설계초분자조합,병통과광화괄당적화학시제래공제저사조합적흡수、형광화도전성질적방법.근거저사조합적광보화전화학행위,구건료일계렬신형적분자개관、라집문화분자회로.최후,전시료용우설계합성신류형개배결구은정적형광라필남분자적독특견해.
This Minireview details the design, development, and demonstration of chemical strategies that are used to create molecular level devices and implement digital processing and communication. The design principle here is to integrate two informationally rich but relatively simple nanobuilding blocks with their complements through photoinduced electron transfer, redox processes, conformational changes,photoindueed energy and proton transfer, and supramolecular events into functional molecular devices.Depending on the abundant electrochemical properties of TTF, lots of D-A-D supramolecules and[2]rotaxanes with the different linkages were synthesized for studying photoinduced transient electron transfer and nanoreeording abilities. Also detailed below are the methods to take advantage of the distinct abilities of electron, energy, and proton transfer of photochromic spiropyran to design supramolecular ensembles and control their absorption, fluorescence, and conductive properties by light and chemical reagents. Based on the spectral and electrochemical behaviors of these ensembles, a whole bunch of novel molecular switches, logic gates, and molecular circuits were constructed. At last, we present an interesting insight into designing a new type of luminescent spiropyan molecules with stable merocyanine open form in solution as well as in the solid state.