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Verfasst von:Mondal, Prakash Chandra [VerfasserIn]   i
 Chhatwal, Megha [VerfasserIn]   i
 Jeyachandran, Yekkoni Lakshmanan [VerfasserIn]   i
 Zharnikov, Michael [VerfasserIn]   i
Titel:Enhancement of optical and electrochemical properties via bottom-up assembly of binary oligomer system
Verf.angabe:Prakash Chandra Mondal, Megha Chhatwal, Yekkoni Lakshmanan Jeyachandran, and Michael Zharnikov
E-Jahr:2014
Jahr:April 14, 2014
Umfang:10 S.
Fussnoten:Gesehen am 21.08.2020
Titel Quelle:Enthalten in: The journal of physical chemistry <Washington, DC> / C
Ort Quelle:Washington, DC : Soc., 2007
Jahr Quelle:2014
Band/Heft Quelle:118(2014), 18, Seite 9578-9587
ISSN Quelle:1932-7455
Abstract:Heterometallic, coordination-based, binary oligomer films were fabricated on SiOx-based solid substrates using successive layer-by-layer assembly of optically rich and redox-active polypyridyl complexes, Ru(pytpy)2·2PF6 (Ru-PT) and Os(pytpy)2·2PF6 (Os-PT) (where pytpy = 4′-pyridyl-2,2′:6′,2″-terpyridyl). The individual oligomer chains comprised alternating Ru-PT and Os-PT units connected via Cu2+, Pd2+, Ag+, Fe2+, Co2+, or Zn2+ metallo-linkers. The growth and properties of the oligomer films were monitored in detail by UV-vis spectroscopy and cyclic voltammetry. The films exhibited a linear growth upon addition of the successive building blocks, with a joint grafting density of 3.9-5.0 × 1014 metallo-ligands/cm2 for the final oligomer films (10 layers), corresponding to a characteristic area of 2.0-2.5 nm2/oligomer. The only exception was the Pd2+-linked film on glass that showed an exponential growth, which, however, could also be changed to the linear mode by the introduction of a conductive substrate. The combination of two different functional molecular units in the oligomer chains resulted in enhancement of the optical window and in an increase in the number of the available redox states as compared to the analogous single component assemblies.
DOI:doi:10.1021/jp502166k
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1021/jp502166k
 DOI: https://doi.org/10.1021/jp502166k
Datenträger:Online-Ressource
Sprache:eng
K10plus-PPN:1727613198
Verknüpfungen:→ Zeitschrift

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