Surface-confined heterometallic molecular dyads

• Verfasst von: Gupta, Tarkeshwar [VerfasserIn]
• Verfasst von: Jeyachandran, Yekkoni Lakshmanan [VerfasserIn]
• Verfasst von: Zharnikov, Michael [VerfasserIn]
• Titel: Surface-confined heterometallic molecular dyads
• Titelzusatz: merging the optical and electronic properties of Fe, Ru, and Os terpyridyl complexes
• Verf.angabe: Tarkeshwar Gupta, Prakash Chandra Mondal, Anup Kumar, Yekkoni Lakshmanan Jeyachandran, and Michael Zharnikov
• E-Jahr: 2013
• Jahr: 27 March 2013
• Umfang: 9 S.
• Fussnoten: Gesehen am 10.02.2021
• Titel Quelle: Enthalten in: Advanced functional materials
• Ort Quelle: Weinheim : Wiley-VCH, 2001
• Jahr Quelle: 2013
• Band/Heft Quelle: 23(2013), 34, Seite 4227-4235
• ISSN Quelle: 1616-3028
• DOI: doi:10.1002/adfm.201203404
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: hybrid materials
• Sach-SW: molecular electronics
• Sach-SW: monolayers
• Sach-SW: optically active materials
• Sach-SW: redox-active materials
• K10plus-PPN: 1746683880

Abstract

Molecular assemblies of surface-confined heterometallic molecular dyads (SURHMDs) composed of optically rich and redox-active Fe(pytpy)2·2PF6 (Fe-PT), Ru(pytpy)2·2PF6 (Ru-PT) and Os(pytpy)2·2PF6 (Os-PT) pytpy = 4′-(4-pyridyl)-2,2′:6′,2″-terpyridyl] complexes are fabricated via bottom-up approach on SiOx based solid supports. Pairing of the two different metal-organic complexes at a single platform results in significant enlargement of the optical window (λ = 400-800 nm), which can be of interest for potential applications. The use of the Cu-based linker ensures intramolecular electronic communication between these complexes. In addition, SURHMDs are electrochemically stable under large numbers of read-write cycles (103) and exhibit multiple redox states at relatively low potentials (<1.2 V). Moreover, an electrochemical input at controlled potentials creates a mixed-valence multicomponent system.