Schmuck Carsten, Rehm Thomas, Gröhn Franziska, Klein Katja, Reinhold Frank
University of Würzburg, Institute of Organic Chemistry, Am Hubland, 97074 Würzburg, Germany.
J Am Chem Soc. 2006 Feb 8;128(5):1430-1. doi: 10.1021/ja056465c.
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 rH approximately 2.5 nm in solution.
