Research of Physical Chemistry on Activity and Spin-Spin Interaction of Paramagnetic Molecular Species

近年来，随着实验技术的不断完善，包括激发态分子在内的顺磁性分子种类的研究取得了长足的进展。在这种情况下，进行了目前的合作研究。这样做的主要目的是建立一个研究体系，使我们能够从理论和实验两个角度来研究每个分子物种的电子结构的特殊性。通过对实验信息和理论考虑的重新审视，顺磁性分子物种研究体系的基本部分可以通过聚焦反应性、动力学行为和自旋-自旋相互作用来理解。因此，在不久的将来，我们的研究发展具有很大的可能性。目前的合作课题组有19名研究人员，开始负责以下四个部分课题；(1)化学方法在时间分辨方法和频率分辨方法上的改进，增加了磁性分子种类。(2)激发态产生的顺磁物质自旋相互作用问题。(3)金属配合物的反应性和自旋-自旋相互作用；(4)被困在凝聚相中的自由基的反应性。此后，在我们小组所有成员的密切合作下，通过交换信息和相互讨论，全面解决了目前的问题。因此，发表了许多卓有成效的研究和具有国际水平的论文。其中主要的部分课题描述如下：考虑扩散过程的CIDEP信号定量分析的发展；完成自旋化学的方法发展；确定分子结构、动力学行为和相同分子物种之间的能量转移率；光激发后金属配合物基态自旋极化的检测线性烷烃o阳离子自由基不对称结构的证据正构烷烃的氢原子抽离速率与其C-C弯曲振动的弛豫速率之间的相关性证据。用脉冲EPR法检测。少

Recently, the lnvestigations of paramagnetic molecolar species, lncluding excited molecules, make rapid progress by improving the experimental techniques.Under such circumstances, the present co-operative research was undertaken. The main purpose of this is the establishment of the research system which makes possible to investirate the special characters on the electronic structure of each molecular species, from both the theoretical and the experimental viewpoints. By reexaming the experimental informations and the theoretical considerations, the fundamental parts in the research system of paramagnetic molecular species could be understood by focussing the reactivity, the dynamic behavior, and the spin-spin-interaction. Thus, the development of our research becomes with great possibilities in the near future. The present co-operative research group with nineteen investigators began to take charge of the following four partial subjects; (1) the improvement of chemical method for param … More agnetic molecular species in focussing the time-resolved and the frequency-resolved methods. (2) the problems on the spin-spin interaction of paramagnetic species produced in the excited state. (3) the reactivity and the spin-spin interaction of metal complexes, and (4) the reactivity of free radicals trapped in condensed phases. After that, the complete resolutions of the present problems were obtained in close co-operation among all the member of our group by the exchange of information and the mutual discussions. As a result, many fruitful investigations and internationally high-level papers have been published. The main partial subjects of these are described as follows: Development of quantitative analysis of CIDEP signals, taking the diffusion process into consideration; Methodologycal development for the purpose of completing the spin chemistry; Determination of molecular structure, dynamic behavior, and energy-transfer rate between the same molecular species; Detection of spin polarizalion produced in the ground state of metal complexes after photoexcitation; Evidence for unsymmetrical structure of o-cation radicals of linear alkanes; Evidence for the correlation between the rate of hydrogen-atom-abstraction from n-alkanes and the relaxation rate of their C-C bending vibralion. detected by the pulse EPR method. Less