Covalent assembly of molecular ladders
Covalent assembly of molecular ladders
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DOI：
10.1021/ja0690013
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发表时间：
2007-04-18
影响因子：
15
通讯作者：
Moore, Jeffrey S.
中科院分区：
文献类型：
--
作者：
Hartley, C. Scott;Elliott, Erin L.;Moore, Jeffrey S.
[n]-Rung分子梯（n = 3-6）已经通过使用亚胺形成/交换使离散的互补的间亚苯基乙炔基低聚物反应来制备。的纳米结构，其中在最大的情况下测量约1.6 × 6.2纳米，其特征在于MALDI质谱和凝胶渗透色谱。尽管在每种情况下梯形结构都是重要的组分，但随着长度增加，较高分子量副产物的形成变得更加明显。这些结构代表了合成更大，更复杂的二维分子网格的重要的第一步。
[n]-Rung molecular ladders (n = 3-6) have been prepared by reacting discrete, complimentary m-phenylene ethynylene oligomers using imine formation/exchange. The nanostructures, which in the largest case measure approximately 1.6 x 6.2 nm, have been characterized by MALDI mass spectrometry and gel permeation chromatography. Although the ladder structure is a significant component in each case, the formation of higher molecular weight byproducts becomes more pronounced as the length increases. These structures represent an important first step toward the synthesis of larger, more sophisticated two-dimensional molecular grids.