生色基也称发色基(团) : 是指分子中某一基团或体系，由于其存在能使分子产生吸收而出现谱带,这一基团或体系即为生色基。 — 有机化合物分子中，这些生色基的结构特征大都是含有π电子。如羰基、羧基、酯基、硝基、偶氮基及芳香体系等。
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The French Revolution had many turning points but the oath of the clergy was if not the greatest unquestionably one of the. It was certainly the Constituent Assemblys most serious mistake. For the first time it forced fellow citizens to choose declare themselves publicly for or against the new order.