Journal
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
Volume 135, Issue 45, Pages 17052-17059Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ja4077205
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Funding
- Helen and Martin Kimmel Center for Molecular Design, a Weizmann-UK collaborative grant
- EC FP7 Initial Training Network DYNAMOL by the U.S. National Science Foundation [DMR-1006432]
- Center for Electrical Energy Storage, an Energy Frontier Research Center
- U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences [DE-AC02-06CH11357]
- FIRE project ITALNANONET [RBPR05JH2P]
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Surface-confined double-helical polymers are generated by dynamic covalent assembly with preservation of chirality, metal coordination environment, and oxidation state of the precursor complexes. This one-step procedure involves both in solution and solution-to-surface assembly and resulted in chiral interfaces where pairs of ligands are wrapped around arrays of metal ions. In-plane XRD experiments revealed the formation of a highly ordered structure along the substrate surface. The chirality of the surfaces is expressed by the selective recognition of 3,4-dihydroxyphenylalanine (DOPA). The CD measurements show a response of the Delta-polymer-modified quartz substrates toward D-DOPA, whereas no change was observed after treatment with L-DOPA. These coordination-based interfaces assembled on metal-oxide substrates in combination with a redox-probe, [Os(bpy)(3)](PF6)(2), in solution can resemble the behavior of a rectifier.
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