Host channel framework determined by C–H⋯π interaction in the inclusion crystal of 2,5-bis(diphenylmethyl)hydroquinone and benzaldehyde
作者:Wen-Sheng Guo、Fang Guo、He-Nan Xu、Lei Yuan、Zhong-Hua Wang、Jian Tong
DOI:10.1016/j.molstruc.2004.08.013
日期:2005.1
compound, 2,5-bis(diphenylmethyl)hydroquinone is designed and prepared. The crystal structure of the inclusion compound formed by the host with benzaldehyde was determined by single crystal X-ray diffraction. The result shows that the host exhibits a stable conformation through intramolecular CH⋯π interactions in the inclusion crystal, and benzaldehyde guest molecules are accommodated in the channel which
摘要 设计并制备了一种新型主体化合物2,5-双(二苯甲基)氢醌。通过单晶X射线衍射确定了主体与苯甲醛形成的包合物的晶体结构。结果表明,主体通过包合物中的分子内CH⋯π相互作用表现出稳定的构象,苯甲醛客体分子被容纳在主体构建的通道中,其中主体之间的分子间C-H⋯π相互作用,除了范德华力之外,在通道框架的架构中也扮演着重要的角色。复杂的结构通过强氢键(O1-H1⋯O1')和主客体之间的两个弱C-H⋯O相互作用(C5'-H5'⋯O1,C3-H3⋯O1')进一步稳定。