Crystal structures of three host–guest complexes of methylsubstituted cucurbit[6]urils and anthracene derivatives
作者:Ze-Hua Chen、Fa-Geng Zhou、Yun-Qian Zhang、Qian-Jiang Zhu、Sai-Feng Xue、Zhu Tao
DOI:10.1016/j.molstruc.2009.05.005
日期:2009.7
methylsubstituted cucurbit[6]urils host and anthracene derivatives guests were synthesized and structurally characterized by single crystal X-ray diffractions and 1 H NMR technique. The hosts are dodecamethylcucurbit[6]uril (DDMeQ[6]), α,α′,δ,δ′-tetramethylcucurbit[6]uril (TMeQ[6]), and hexa-methylsubstituted cucurbituril (HSMeQ[6]) made from 3a-methyl-glycoluril. The guests are 9,10-bis[ N -(aminoe
摘要 合成了三种甲基取代的葫芦[6]脲主体和蒽衍生物客体的主客体配合物,并通过单晶X射线衍射和1 H NMR技术对其进行了结构表征。宿主是十二甲基葫芦脲 [6] 脲 (DDMeQ[6])、α,α',δ,δ'-四甲基葫芦脲 [6] 脲 (TMeQ[6]) 和六甲基取代葫芦脲 (HSMeQ[6]) 3a-甲基甘脲。客体是9,10-双[N-(氨基亚乙基)氨基甲基]蒽(AN1)、9,10-双[N-(氨基亚丙基)氨基甲基]蒽(AN2)和9,10-双[N-(氨基丁烯)氨甲基]蒽(AN3)。晶体结构显示化合物 1-3 的化学计量为 DDMeQ[6]-AN1} 2+ 2NO 3 − 24H 2 O ( 1 ), TMeQ[6]-AN2} 2+ 4NO 3 − 2H 3 O + 10H 2 O ( 2 ) 和 2HSMeQ[6]-AN3} 2+ 2Cl − 25H 2 O ( 3 ),