کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1314734 | 1499365 | 2012 | 9 صفحه PDF | دانلود رایگان |
A series of partially fluorinated and specifically para-substituted tolanes (1–4) have been synthesized via palladium-catalyzed Sonogashira cross-coupling reaction. The single-crystal structures have been determined by X-ray diffraction. The molecules adopt a geometry being more or less disturbed from planarity due to crystal packing effects. The packing structures are characterized by the formation of molecular stacks achieved through different modes of π⋯π interaction and being accomplished by other types of weak interactions including hydrogen bonds as well as bromo and in particular fluoro involved contacts.
Fluorinated tolanes with para-substituted electron donor and acceptor groups have been synthesized and studied regarding their modes of packing in crystalline state.Figure optionsDownload as PowerPoint slideHighlights
► New oligofluorinated tolanes featuring additional electron donor and acceptor groups have been synthesized.
► Specific interaction modes in their crystal structures have been determined by X-ray crystallography.
► Molecular π-stacking interactions dominate the packing structures.
Journal: Journal of Fluorine Chemistry - Volume 135, March 2012, Pages 231–239