Template-Directed Synthesis of a Covalent Organic Capsule Based on a 3 nm-Sized Metallocapsule
Template-Directed Synthesis of a Covalent Organic Capsule Based on a 3 nm-Sized Metallocapsule
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DOI：
10.1021/ja903324r
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发表时间：
2009-08-26
影响因子：
15
通讯作者：
Shionoya, Mitsuhiko
中科院分区：
文献类型：
--
作者：
Hiraoka, Shuichi;Yamauchi, Yoshitaka;Shionoya, Mitsuhiko
以八面体金属包膜为模板分子，以极高收率（43%）三步合成了具有24个吡啶基的4纳米共价有机胶囊。该实体通过核磁共振和MALDI-TOF质谱测量得到了充分的表征。有机胶囊的24个吡啶基的n -甲基化产生了一个5nm大小的聚阳离子胶囊，由于胶囊的吡啶基正电荷之间的静电排斥作用，该多阳离子胶囊比中性前体胶囊大。
A 4 nm-sized covalent organic capsule having 24 pyridyl groups was synthesized in extremely high yield (43% in three steps) using an octahedron-shaped metallocapsule as a template molecule. The entity was fully characterized by NMR and MALDI-TOF MS measurements. N-Methylation of the 24 pyridyl groups of the organic capsule produced a 5 nm-sized polycationic capsule, which is larger than the neutral precursory capsule because of the electrostatic repulsion between the positive charges on the pyridinium groups of the capsule.