Böhmer, RolandHinze, G.Diezemann, G.Sillescu, H.2008-06-182008-06-181998Hinze, G.; Böhmer, R.; Diezemann, G.; Sillescu, H.: Experimental determination of four-time stimulated echoes in liquids, colloidal suspensions, and crystals. In: Journal of Magnetic Resonance Jg. 131(1998), S. 218-223, doi: 10.1006/jmre.1998.9999.http://hdl.handle.net/2003/25708http://dx.doi.org/10.17877/DE290R-3131Four-time stimulated echo experiments have been used to monitor the temporal evolution of the reorientation rates of deuterated molecules or colloidal suspensions. We present extended phase cycles for this seven-pulse experiment. In order to test its performance three vastly different materials are chosen. These include a crystal in which the molecules carry out well-defined 180° flips and a supercooled liquid characterized by a distribution of jump angles centered around 10°. As an example for rotational diffusion, data on a concentrated suspension of polystyrene spheres in a viscous medium are presented.enCopyright © 1998 Academic Press. All rights reserved.530Texthttp://dx.doi.org/10.1006/jmre.1998.9999