The Role of Chain Length in Cucurbit[8]uril Complexation of Methyl Alkyl Viologens
作者:Alessandro Pedrini、Anjali Devi Das、Roberta Pinalli、Neal Hickey、Silvano Geremia、Enrico Dalcanale
DOI:10.1002/ejoc.202100014
日期:2021.3.12
The influence of alkyl chain length on the binding mode of four methyl alkyl viologens (MVCn with n=12,14,16,18) with cucurbit[8]uril (CB[8]) was investigated in water, revealing a clear switch from 1 : 1 to 2 : 1 stoichiometry moving from 12 to 16 carbon atoms. An unprecedented evidence of the 2 : 1 stoichiometry in the solid state was obtained by crystal structure determination of CB[8]2−MVC18 complex
在水中研究了烷基链长度对四种甲基紫胶单体(MVCn,n = 12、14、16、18)与葫芦[8] uril(CB [8])结合模式的影响,揭示了从从12到16个碳原子移动的化学计量比为1:1至2:1。通过CB [8] 2 -MVC18配合物的晶体结构测定,获得了固态化学计量比为2:1的前所未有的证据。