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Penta- and Decafluorinated Dibenzalacetones: Synthesis, Crystal Structure, and Cocrystallization Experiments

机译:五氟和十氟二苯并丙酮:合成,晶体结构和共结晶实验

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摘要

The nonfluorinated parent dibenzalacetone 1 as well as the corresponding penta- (2) and decafluorinated (3) derivative compounds were prepared, crystallized, and subjected to co-crystallization experiments. Only 3 yielded a 1:1 co-crystal with 1, while 2 did not form cocrystals with either 1 or 3. Powder X-ray diffraction patterns were determined to verify the cocrystallization experiments. The influence of the fluorine on the molecular geometry and crystal packing were studied and comparatively discussed. Conclusions with reference to the priority of Ar···Ar~F contact modes in the crystalline packing being in competition with other fluorine and non-fluorine involved supramolecular interactions were drawn.
机译:制备非氟化母体二苯并丙酮1以及相应的五-(2)和十-氟化(3)衍生物,进行结晶,然后进行共结晶实验。只有3个与1个产生了1:1的共晶,而2个没有与1个或3个形成共晶。确定了粉末X射线衍射图以验证共结晶实验。研究并比较了氟对分子几何形状和晶体堆积的影响。得出的结论是,在晶体堆积中Ar··Ar〜F的接触方式优先与其他氟和非氟涉及的超分子相互作用竞争。

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