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Assembly, characterization, and electrochemical properties of immobilized metal bipyridyl complexes on silicon(111) surfaces

Blakemore, James D. and Lattimer, Judith R. and Sattler, Wesley and Gul, Sheraz and Yano, Junko and Brunschwig, Bruce S. and Lewis, Nathan S. and Gray, Harry B. (2014) Assembly, characterization, and electrochemical properties of immobilized metal bipyridyl complexes on silicon(111) surfaces. In: 248th American Chemical Society National Meeting & Exposition, 10-14 August 2014, San Francisco, CA. https://resolver.caltech.edu/CaltechAUTHORS:20140813-084518207

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Abstract

A route to bipyridine-functionalized silicon(111) surfaces has been developed which gave submonolayer surface coverage of immobilized 4-vinyl-2,2'-bipyridyl (vbpy). The remaining atop sites of the silicon surface were passivated with Me groups. The immobilized bipyridyl ligands bound metal ions, thus enabling assembly of metal complexes on the silicon surface. XPS studies demonstrated that [Cp*Rh(vbpy)Cl]Cl, [Cp*Ir(vbpy)Cl]Cl, and Ru(acac)2vbpy were assembled on the surface (Cp* is pentamethylcyclopentadienyl, acac is acetylacetonate). For the surface prepd. with iridium, X-ray absorption spectroscopy at the Ir L_(III) edge showed an edge energy and post-edge features consistent with a powder sample of [Cp*Ir(bpy)Cl]Cl (bpy is 2,2'-bipyridyl). Cyclic voltammetry data for surfaces prepd. on highly doped, conducting silicon confirmed electroactivity of the assembled complexes.


Item Type:Conference or Workshop Item (Paper)
Related URLs:
URLURL TypeDescription
http://www.acs.org/content/acs/en/meetings/fall-2014.htmlOrganizationConference Website
ORCID:
AuthorORCID
Blakemore, James D.0000-0003-4172-7460
Sattler, Wesley0000-0001-5316-260X
Gul, Sheraz0000-0001-8920-8737
Yano, Junko0000-0001-6308-9071
Brunschwig, Bruce S.0000-0002-6135-6727
Lewis, Nathan S.0000-0001-5245-0538
Gray, Harry B.0000-0002-7937-7876
Additional Information:© 2014 American Chemical Society.
Record Number:CaltechAUTHORS:20140813-084518207
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20140813-084518207
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:48477
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:13 Aug 2014 16:06
Last Modified:02 Mar 2020 23:40

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