The self-assembly of six-petal microflowers by hydrogen bonded shape-persistent triangular aromatic hydrazide derivatives

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The self-assembly of six-petal microflowers by hydrogen bonded shape-persistent triangular aromatic hydrazide derivatives

Publication year: 2010
Source: Tetrahedron Letters, In Press, Accepted Manuscript, Available online 9 June 2010
Jian-Bin, Lin , Gui-Tao, Wang , Xi-Kui, Jiang , Zhan-Ting, Li
Six-petal microflowers have been self-assembled in methanol from C3-symmetric shape-persistent triangular aromatic hydrazide derivatives. Nine intramolecular hydrogen bonds are used to enhance the planarity of the aromatic backbone, while six 2-(2-(2-methoxyethoxy)ethoxy)ethoxyl groups are appended to the rigid aromatic backbone. Scanning electron microscopy (SEM) images show that the molecules form unique six-petal flower-like aggregates in methanol. A self-assembling mechanism that is similar to the formation of snowflakes has been proposed. © 2010 Elsevier Science.

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