Počet záznamů: 1

Mercury-Mediated Attachment of Metal-Sandwich-Based Altitudinal Molecular Rotors to Gold Surfaces

  1. 1.
    0346410 - UFCH-W 2011 RIV US eng J - Článek v odborném periodiku
    Mulcahy, M. E. - Bastl, Zdeněk - Stensrud, Kenneth F. - Magnera, T. F. - Michl, Josef
    Mercury-Mediated Attachment of Metal-Sandwich-Based Altitudinal Molecular Rotors to Gold Surfaces.
    Journal of Physical Chemistry C. Roč. 114, č. 33 (2010), s. 14050-14060 ISSN 1932-7447
    Grant CEP: GA AV ČR KAN100400702; GA ČR GA203/07/1619
    Grant ostatní: ERC Advanced Grant(XE) 227756
    Výzkumný záměr: CEZ:AV0Z40400503; CEZ:AV0Z40550506
    Klíčová slova: XPS * STM * molecular rotors
    Kód oboru RIV: CF - Fyzikální chemie a teoretická chemie
    Impakt faktor: 4.520, rok: 2010

    Gold surface attachment of altitudinal molecular rotors provided with ten −HgSCH2CH2SCH3 “tentacles” has been monitored with ellipsometry, scanning tunneling microscopy, and X-ray photoelectron spectroscopy (XPS). The rotors appear to adsorb on the gold surface in the intended orientation, with rotor axle parallel to the surface, without any inclination for multilayer growth. According to XPS data, the sulfur-containing tentacles start to be detectably oxidized within hours of exposure to air and can be ultimately removed by washing. The rotor molecules nevertheless remain firmly attached in the desired orientation, apparently due to a direct interaction of their Hg atoms with the gold surface. When the tentacles are simplified to −HgOCOCF3 substituents, the molecules adhere to the surface as well, but not always in the desired orientation.
    Trvalý link: http://hdl.handle.net/11104/0187447