由邻位化合物生成的五元环络合物比由间位化合物形成的六元环络合物稳定性高，反应速度快。
The ortho-compound formed penta cyclic compound was more stable that the meta-compound formed hexa cyclic compound, so the reaction rate of the ortho-compound is larger.
硝基化合物与相应产物燐光位移能差绝对值有对位>邻位>间位，且成直线关系。
The emission wavelength of nitro compounds are longer than that in their reduced products.
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