Towards the Design of Molecular Switches

分子开关的设计

• 批准号: 5381856
• 负责人: Professor Dr. Philipp Gütlich (†)
• 金额: --
• 依托单位: CNRS UPR (aufgelöst)
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2002
• 资助国家: 德国
• 起止时间: 2001-12-31 至 2007-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/5381856?language=en
• 关键词: Towards; Design; Molecular; Switches

The interest in spin crossover compounds has considerably increased within the recent years following the that such species, exhibiting the possibility of thermal, pressure-, and light-induced switching between two different spin states, appear to have significant potential in the areas of signal processing and display devices. The aim of this proposal has three primary goals: (i) synthesis of new iron (II) spin crossover compounds with suitable electronic switching properties under the influence of heat, light, and pressure (ii) detailed understanding of the electronic process involved and the mechanism of the cooperative interactions (iii) identification of the chemical and physical factors which induce long-lived light-induced metastable spin states. The methodological approach to reach these goals will involve the synthesis of new complexes merged with careful physical characterizations and theoretical analyses. Along this line, experimental results from magnetometer setup, Raman spectroscopy, X-ray measurements, specific heat data, Mössbauer spectroscopy should provide detailed investigations. The two teams of the proposed project have been working in the field of thermal and optical switching of iron(II) spin crossover for many years. Their notable expertise and complementarity should allow to obtain new insights in this strong interdisciplinary field and to tailor the properties of the materials to the eventual development of devices for imaging and display.

近年来，自旋交叉化合物的兴趣大大增加，因为这种物质表现出在两种不同自旋状态之间的热、压力和光诱导切换的可能性，在信号处理和显示器件领域似乎具有显着的潜力。该提案的目的有三个主要目标：（一）合成新的铁（II）自旋交叉化合物，在热，光和压力的影响下具有合适的电子开关特性（二）详细了解所涉及的电子过程和合作相互作用的机制（三）识别的化学和物理因素，诱导长寿命的光诱导亚稳自旋状态。实现这些目标的方法论方法将涉及新复合物的合成，并结合仔细的物理表征和理论分析。沿着这条线，磁力计设置，拉曼光谱，X射线测量，比热数据，穆斯堡尔光谱的实验结果应该提供详细的调查。该项目的两个团队已经在铁（II）自旋交叉的热开关和光开关领域工作多年。他们显著的专业知识和互补性应该允许在这个强大的跨学科领域获得新的见解，并定制材料的特性，以最终开发成像和显示设备。