以巴比妥酸和蜜胺衍生物为组件构建的一种新型超分子纳米管

纳米有序材料由于其具有特殊性质及广阔的应用前景而倍受人们关注 1,2 ] .利用分子间非共价键 ,可在原子或分子水平上设计并快速构建具有一定结构和功能的纳米材料 3,4 ] .目前 ,已合成出包括无机沸石5] 、石墨 6] 、类脂组装体 7] 、生物材料 8] 及碳 9] 等多种类型的纳米管 .本文以 5- (4- N-甲基 - N-十四烷基 ) - 2 ,4,6- (1 H,3H) -吡啶三酮 (AB1,14 )和 4-氨基 - 2 ,6-二 (十二烷氨基 ) - 1 ,3,5-均三嗪 (M12 )为原料 ,通过非共价键作用构建出直径～ 7nm,长度为几百纳米的超分子纳米管 .X射线衍射结果表明 ,该纳米管具有 0…

Fabrication of Supramolecular Nanotubes Based on Barbituric Acid and Melamine Derivatives

Hollow supramolecular nanotubes have been fabricated by the self-assembling of 5-(4-N-methyl-N-tetradecyl aminobenzylidene)-2,4,6 (1H,3H)-pyrimidinetrione(AB_1,14) and 4-amino-2, 6-didodecylamino-1,3,5-triazine (M₁₂) in non hydrous chloroform. The nanotubes are 7 nm in diameter and about hundreds of nanometer in length. Their formation was realized by π-π aromatic stacking of the hexamers, which resulted from the interaction of three complementary hydrogen bonds between AB_1,14 and M₁₂. X-ray diffraction pattern indicated that the distance between the hexamers is 0.49 nm.