Development of the CIDNP Detected ESR Method and the Research on the Short-Lived Paramagnetic Species.

本研究项目最直接的目的是开发CIDNP检测ESR方法，作为检测自由基对的辅助手段。然而，除此之外，我们还有其他同样重要的目的：(a)发展定量测量CIDNP强度的方法。(b)发展综合发展方案和综合发展方案的分析方法。对于上述所有三点，我们能够获得显著的结果。它们总结如下：建立了确定CIDNP增强因子的方法。2. 分析了过氧化苯甲酰光化学裂解机理，考察了连续扩散过程。3. 从增强因子的角度对CIDNP法确定光化学反应前驱体的方法进行了重新检验。4. 研究了CIDNP的磁场效应。5. 在自旋相关CIDEP机理中提出了一种新的机理。6. 从ciddep和CIDNP两个方面分析了交换交互。7. CIDNP检测ESR方法研制成功。8. 利用l波段ESR谱仪建立了低场CIDEP方法。

The most direct purpose of this research project is to develop the CIDNP detected ESR method as an aid to detect the radical pair. In addition, however, we have other, similarly important purposes: (a) To develop the method to quantitatively measure the CIDNP intensity. (b) To develop the method of analysis from both CIDNP and CIDEP. For all the three points described above, we were able to obtain significant results. They are summarized in the following.1. The method of determining the CIDNP enhancement factor has been established. 2. The mechanism of the photochemical cleavage of benzoyl peroxide is analyzed, and continuous diffusion process is examined. 3. The method to determine the precursor of the photochemical reaction from the CIDNP method is re-examined in terms of the enhancement factor. 4. Magnetic field effect of CIDNP is examined. 5. A new mechanism is proposed in the spin correlated CIDEP mechanism. 6. Exchange interaction is analyzed from both CIDEP and CIDNP. 7. CIDNP detected ESR method has been successfully developed. 8. Low field CIDEP method is established by using L-band ESR spectrometer.