Exchange Reactions between Alkanethiolates and Alkaneselenols on Au{111} J. Nathan Hohman John C. Thomas Yuxi Zhao Harsharn Auluck Moonhee Kim Wouter Vijselaar Sander Kommeren Andreas Terfort Paul S. Weiss 10.1021/ja503432f.s001 https://acs.figshare.com/articles/journal_contribution/Exchange_Reactions_between_Alkanethiolates_and_Alkaneselenols_on_Au_111_/2286811 When alkanethiolate self-assembled monolayers on Au{111} are exchanged with alkaneselenols from solution, replacement of thiolates by selenols is rapid and complete, and is well described by perimeter-dependent island growth kinetics. The monolayer structures change as selenolate coverage increases, from being epitaxial and consistent with the initial thiolate structure to being characteristic of selenolate monolayer structures. At room temperature and at positive sample bias in scanning tunneling microscopy, the selenolate–gold attachment is labile, and molecules exchange positions with neighboring thiolates. The scanning tunneling microscope probe can be used to induce these place-exchange reactions. 2014-06-04 00:00:00 exchange Reactions selenolate coverage increases sample bias scanning tunneling microscope probe thiolate structure selenolate monolayer structures molecules exchange positions scanning tunneling microscopy room temperature monolayer structures change