Ion Pair Driven Self-Assembly of a Flexible Bis-Zwitterion in Polar Solution: Formation of Discrete Nanometer-Sized Cyclic Dimers

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• 作者：Carsten Schmuck ; Thomas Rehm ; Franziska Gr&ouml ; hn ; Katja Klein ; and Frank Reinhold
• 刊名：Journal of the American Chemical Society
• 出版年：2006
• 出版时间：February 8, 2006
• 年：2006
• 卷：128
• 期：5
• 页码：1430 - 1431
• 全文大小：79K
• 年卷期：v.128,no.5(February 8, 2006)
• ISSN：1520-5126

文摘

The self-complementary flexible bis-zwitterion 1 forms discrete nanometer-sized cyclic dimers via ion pair driven self-assembly even in polar solvents. The existence of such dimers was confirmed by DOSY NMR, FAB-MS, and scattering experiments (DLS, SANS) which all indicate the concentration-dependent formation of cyclic dimers with a hydrodynamic radius of r_H 2.5 nm in solution.