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基于实验观察和反应物的MO计算,发现长波长光照下的S_(RN)1反应活性与电子加到ArX-LUMO的难易程度有关。由ArBr和碳负离子形成的基态电荷转移复合物的激发可能是S_(RN)1光诱导的主要通道。
Based on the experimental observations and the MO calculations of the reactants, it was found that the S (RN) 1 reactivity in long-wavelength light irradiation is related to the ease of electron addition to ArX-LUMO. The excitation of the ground state charge-transfer complex formed by ArBr and the carbanion may be the main channel for photoinduced S RN1.