摘要
以对称四甲基六元瓜环(TMeQ[6])为主体,2-戊基苯并咪唑盐酸盐(PB)为客体,在水溶液中自组装形成主客体超分子化合物{PB@TMeQ[6]}.Cl.9(H2O),利用X-射线单晶衍射技术对化合物的晶体结构进行了表征。实验结果表明,主客体之间通过多种非共价键作用形成1∶1的主客体包合物,客体的芳环被瓜环包结于空腔内,烷基置于瓜环端口外侧,包合物结构单元之间与共用水分子通过氢键连接成一维超分子链。
A novel self-assembly host-guest supramolecular compound { PB@ TMeQ [ 6 ] }· Cl.9 (H2O) of tetramethyl- substituted cucurbit[ 6 ] uril with 2-pentyl-1H-benzo [ d ] imid- azole hydrochloride (PB) was synthesized in aqueous solu- tion, and the crystal structure was determined by X-ray dif- fraction. The experimental results indicate that TMeQ [ 6 ] and PB with a 1: 1 ratio through non-covalent interactions to form an inclusion complex, one end of the guest PB especially the benzimidazole moiety is whole deeply located in the hydropho- bic cavity of TMeQ [ 5 ] and the another end pentyl group is outside and far away from the TMeQ [ 6 ] portal. The host-guest inclusion complex units assembled through hydrogen bonding to form 1D supromolecular chain.
出处
《化学试剂》
CAS
CSCD
北大核心
2013年第6期497-500,共4页
Chemical Reagents
基金
国家自然科学基金资助项目(20972034)
关键词
对称四甲基六元瓜环
2-戊基苯并咪唑盐酸盐
主客体超分子化合物
晶体结构
tetramethyl-substituted cucurbit [ 6 ] uril
2-pen- tyl-1 H-benzo [ d ] imidazole hydrochloride
host-guest supramo- lecular compound
crystal structure