Polycationic High-Spin States of One- and Two-Dimensional (Diarylamino)benzenes, Prototypical Model Units for Purely Organic Ferromagnetic Metals As Studied by Pulsed ESR/Electron Spin Transient Nutation Spectroscopy
作者:Kazunobu Sato、Masafumi Yano、Mutsuo Furuichi、Daisuke Shiomi、Takeji Takui、Kyo Abe、Koichi Itoh、Akiji Higuchi、Katsuhiko Katsuma、Yasuhiko Shirota
DOI:10.1021/ja963372+
日期:1997.7.1
Polycationic high-spin states of 1,3-bis(diarylamino)benzene and 1,3,5-tris(diarylamino)benzene as prototypical model units for organic ferromagnetic metals have been studied by cw and pulsed ESR spectroscopy. An electron spin transient nutation (ESTN) method as a novel technique based on pulsed ESR spectroscopy has been applied to the dicationic and tricationic high-spin states of them in glasses
已通过连续波和脉冲 ESR 光谱研究了 1,3-双(二芳基氨基)苯和 1,3,5-三(二芳基氨基)苯的聚阳离子高自旋态作为有机铁磁金属的原型模型单元。电子自旋瞬态章动 (ESTN) 方法作为一种基于脉冲 ESR 光谱的新技术,已应用于玻璃中它们的双阳离子和三阳离子高自旋状态,明确地识别出这些分子在基态的自旋多重性为三重态与|D|的精细结构参数 = 0.007 cm-1 和 |D| 的四重奏 = 0.004 cm-1, |E| 分别为 = 0.0002 cm-1 和 g = 2.0023,并得出结论认为高自旋基态源自 π-HOMO 的拓扑假简并性,它控制着聚阳离子杂原子系统中的自旋排列。