根据同分异构的化学原理，有机物有相同的分子式和相同的官能团时，它们的化学性质和物理性质很相似。
According to the principle of isomeric chemistry, when organic substances have the same molecular formula and the same functional groups, their chemical and physical properties are very similar.
对双（苯并唑）化合物在不同极性溶剂中的光谱、光物理及光顺反异构化问题进行了详细研究。
The problem of photophysics, spectrum and photo isomerization of bis(benzoxadyl) stilbene in different solvents were studied carefully.
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