Recrystallization of 1,4-dipropoxy-9,10-anthraquinone from hexane solution afforded two polymorphs: red prisms and yellow needles. X-ray crystallographic analyses revealed that the molecular arrangement was an anti-parallel orientation for red solids and a slipped-parallel orientation for yellow solids. The difference in solid-state color was analyzed by TD-DFT calculations of their multimers.
1,4-二丙氧基-9,10-
蒽醌从己烷溶液中重结晶得到两种多晶型物:红色棱晶和黄色针状晶体。 X射线晶体学分析表明,红色固体的分子排列为反平行取向,黄色固体的分子排列为滑移平行取向。通过其多聚体的 TD-DFT 计算来分析固态颜色的差异。