作者:Gui‐Chao Kuang、Ming‐Jun Teng、Xin‐Ru Jia、Er‐Qiang Chen、Yen Wei
DOI:10.1002/asia.201000529
日期:2011.5.2
There is a delicate balance for a low‐weight molecule to behave as a gelator or crystal. The synthesis of two novel amino acid‐based naphthalene‐dendrons, Nap‐G1 and Nap‐G2 is described. Both dendrons display polymorphic properties in organic solvents. Nap‐G1 developed a fibrous network with β‐sheet architecture in cyclohexane but exhibited a spherulitic network in mixed solvents (chloroform/petroleum
低重量分子充当胶凝剂或晶体时存在微妙的平衡。描述了两种新型的基于氨基酸的萘-树枝状结构,Nap - G1和Nap - G2的合成。两种树突在有机溶剂中均表现出多态性。Nap - G1在环己烷中形成了具有β-折叠结构的纤维网络,但在混合溶剂(氯仿/石油醚1:5,v / v)中显示出球状网络。另一方面,Nap - G2在氯仿中起有效的有机胶凝剂作用,但在极性较高的溶剂(如丙酮和甲醇)中形成结晶纤维。表征的组合已被用于研究多态性。