New Stable Radicals for Magnetic and Conductive Liquid Crystalline Materials

磁性和导电液晶材料的新稳定基团

• 批准号: 9528029
• 负责人: Piotr Kaszynski
• 金额: $ 33万
• 依托单位: Vanderbilt University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-01-15 至 1998-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9528029&HistoricalAwards=false
• 关键词: New; Stable; Radicals; Magnetic; Conductive

This award, in the Organic Dynamics Program of the Chemistry Division, will allow Prof. Piotr Kaszynski of Vanderbilt University to synthesize and investigate liquid crystals which have the unusual feature of also being stable free radicals. This leads to the ability to `tune` electrical and magnetic properties either by controlling the nature of the liquid crystal by structural variation or by controlling the nature of the free radical. The structures to be studied are based on the thioaminyl radical fragment. Computational methods for prediction of properties are used in the selection of specific preparative targets and in refinement of such choices. Both the ultimate target materials and the model non-liquid crystal free radicals, prepared in the course of developing synthetic methodology, will be studied electrochemically, by epr, and by X-ray spectroscopy when appropriate. It is intended that new materials with unusual electrical and magnetic properties will result. This work involves the preparation of new materials in which two attractive structural features are combined. Liquid crystalline molecules respond to small electrical signals and to temperature variation and are used as displays, thermosensors, and otherwise. Stable free radicals possess unusual electrical and magnetic properties intrinsically. This work combines them to produce, characterize, and study a unique class of substances, and perhaps ultimately to develop novel devices containing them.

这个奖项，在化学部的有机动力学计划， 将使范德比尔特大学的Piotr Kaszynski教授 并研究液晶，它具有不寻常的特征， 是稳定的自由基 这导致了“调谐”的能力。 电和磁特性，或者通过控制 液晶通过结构变化或通过控制性质 自由基。 要研究的结构是基于 硫代氨基自由基片段。 预测的计算方法 特性用于选择特定的制备靶， 在这些选择的完善。最终的目标材料和 模型非液晶自由基，制备过程中， 开发合成方法，将进行电化学研究，通过 epr，并在适当时通过X射线光谱法。它的目的是， 将产生具有不寻常的电和磁特性的材料。 这项工作涉及新材料的制备，其中两个 结合了有吸引力的结构特征。液晶分子 响应于小的电信号和温度变化， 用作显示器、温度传感器等。稳定自由基 具有不寻常的电和磁特性。 这 工作结合起来，他们生产，特点，并研究一个独特的类， 物质，并可能最终开发新的设备， 他们