Diverse Redox-Active Molecules Bearing O-, S-, or Se-Terminated Tethers for Attachment to Silicon in Studies of Molecular Information Storage

• DOI: 10.1021/jo034944t
• Publication Date: 2004-02-27T06:07:00Z
• Authors: Arumugham Balakumar; Andrey B. Lysenko; Carole Carcel; Vladimir L. Malin...; Daniel T. Gryko; Karl-Heinz Schwei...; Robert S. Loewe; Amir A. Yasseri; Zhiming Liu; David F. Bocian; Jonathan S. Lindsey
• Keywords: Linker

A molecular approach to information storage employs redox-active molecules tethered an electroactive surface. Attachment of the surfaces requires control over nature tether (linker and surface attachment group). We have synthesized a collection bearing different linkers anchor groups in free or protected form (hydroxy, mercapto, S-acetylthio, Se-acetylseleno) for such as silicon, germanium, gold. The exhibit number cationic oxidation states, including one (ferrocene), two [zinc(II)porphyrin], three [cobalt(II)porphyrin], four (lanthanide triple-decker sandwich compound). Electrochemical studies monolayers variety attached Si(100) electrodes indicate that regular mode (via Si-X bond, X = O, S, Se), relatively homogeneous organization, robust reversible electrochemical behavior. acetyl protecting group undergoes cleavage during deposition process, enabling silicon via thio seleno without handling thiols selenols.