But how do the thiols themselves behave in different conditions? Guohua Yang and Gang-yu Liu used scanning tunneling microscopy to look at these self-assembling monolayers as they are heated. They found that as some thiols vaporize from the surface, the surface patterns change in distinct ways. They identified up to 15 different structural phases, some of them for the first time.
These studies shed light on the interaction between the thiol molecules and the gold surface and could be used for creating patterns of other molecules on the surface, Liu said.
Contact: Gang-yu Liu, Chemistry, (530) 754-9678, gyliu@ucdavis.edu .
Paper: Molecular-level insights for self-assembled monolayers of organothiols on Au(III) revealed by scanning tunneling microscopy
Authors: Guohua Yang and Gang-yu Liu, Department of Chemistry, UC Davis
Session: Nanoscience
Session date and time: 7 p.m. to 10 p.m., Tuesday, March 30