首页> 外文期刊>The journal of physical chemistry, A. Molecules, spectroscopy, kinetics, environment, & general theory >Simple but Useful Scheme toward Understanding of Intramolecular Magnetic Interactions: Benzene-Bridged Oxoverdazyl Diradicals
【24h】

Simple but Useful Scheme toward Understanding of Intramolecular Magnetic Interactions: Benzene-Bridged Oxoverdazyl Diradicals

机译:一个简单但有用的方案,以了解分子内的电磁相互作用:苯桥基氧代二氮杂双自由基

获取原文
获取原文并翻译 | 示例
           

摘要

It has recently been shown that the types of intramolecular magnetic interactions of diradical systems can be changed by the types of radical group: syn-group (or α-group) and anti-group (or β-group). The aim of this study is to establish a useful scheme to understand and explain the intramolecular magnetic interactions in diradical systems regardless of radical groups and the topology of a coupler. We investigated the intramolecular magnetic coupling constant (J) of six oxoverdazyl diradicals (i-vi) coupled with a benzene ring based on the unrestricted DFT calculations. On the basis of our results, we devised a simple but useful scheme by combining the spin alternation rule and the concept of radical group classification. Consequently, it was found that the calculated J values and plots of spin density distributions were consistent with our proposed scheme. In addition, we discussed the closed-shell singlet (CS) state and the dihedral angle effect on J values in detail to comprehensively understand the magnetic interactions of diradical systems. Our scheme can provide the basic framework to design future organic high-spin molecules and organic magnetic materials.
机译:最近已经显示,双自由基体系的分子内磁相互作用的类型可以通过自由基基团的类型改变:顺式基团(或α-基团)和反基团(或β-基团)。这项研究的目的是建立一个有用的方案,以理解和解释双自由基系统中的分子内磁性相互作用,而与自由基基团和耦合剂的拓扑结构无关。我们基于不受限制的DFT计算,研究了六个带有苯环的oxoverdazyl双自由基(i-vi)的分子内磁耦合常数(J)。根据我们的结果,我们结合了自旋交替规则和部首分类的概念,设计了一个简单但有用的方案。因此,发现计算得到的J值和自旋密度分布图与我们提出的方案是一致的。此外,我们详细讨论了闭壳单重态(CS)状态和二面角对J值的影响,以全面了解双自由基系统的磁相互作用。我们的方案可以为设计未来的有机高自旋分子和有机磁性材料提供基本框架。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号