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阻转异构
阻转异构现象是某些分子单键自由旋转受阻时,产生光活性异构体的现象,也可看作是构象异构的一类。[1]其英文名为Atropisomer,来源于希腊文,其中a意为“不”,tropos意为“旋转”。该名称首先由Kuhn于1933年提出。[2] 6,6'-二硝基-2,2'-二羧基联苯的两个阻转异构 ...
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