Stable Triplets

这项来自有机动力学计划的拨款支持哥伦比亚大学罗纳德·c·d·布雷斯洛教授的持续研究。本工作的一个重要目标是制备室温下稳定的铁磁性有机材料。这个项目的成功可能会导致在信息存储等领域具有相当大的实用潜力的新材料的制备，也可能导致对分子和材料磁性的进一步了解。作为本项目的一部分，将合成和研究新的三重态物质，包括苯二甲酸、苯二离子、环戊二烯基阳离子和环丙烯阴离子的稳定衍生物。提出的物理研究包括电子自旋共振光谱作为温度，磁化率和红外光谱的函数。除了作为一类新的磁性材料具有潜在的实际意义外，有机三重态物种还为评估三重态基态和铁磁相互作用的结构要求提供了实验基础。

This grant from the Organic Dynamics Program supports the con- tinuing research of Professor Ronald C. D. Breslow at Columbia University. An important goal of this work is to prepare stable organic materials that are ferromagnetic at room temperature. Success in this project could lead to the preparation of new materials with considerable practical potential in areas such as information storage and also could lead to increased understanding of the magnetic properties of molecules and of materials. As part of this project, new triplet species to be synthesized and studied include stabilized derivatives of benzene dication, benzene dianion, cyclopentadienyl cation, and cyclopropenyl anion. The proposed physical studies include electron spin resonance spectroscopy as a function of temperature, magnetic susceptibility, and infrared spectroscopy. In addition to their potential practical importance as a new class of magnetic materials, the organic triplet species provide an experimental basis for evaluating the structural requirements for a triplet ground state and for ferromagnetic interactions.