Please use this identifier to cite or link to this item:
https://doi.org/10.1021/nn900570v
DC Field | Value | |
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dc.title | Synthesis and electrical characterization of oligo(phenylene ethynylene) molecular wires coordinated to transition metal complexes | |
dc.contributor.author | Ng, Z. | |
dc.contributor.author | Loh, K.P. | |
dc.contributor.author | Li, L. | |
dc.contributor.author | Ho, P. | |
dc.contributor.author | Bai, P. | |
dc.contributor.author | Yip, J.H.K. | |
dc.date.accessioned | 2014-10-16T08:43:22Z | |
dc.date.available | 2014-10-16T08:43:22Z | |
dc.date.issued | 2009-08-25 | |
dc.identifier.citation | Ng, Z., Loh, K.P., Li, L., Ho, P., Bai, P., Yip, J.H.K. (2009-08-25). Synthesis and electrical characterization of oligo(phenylene ethynylene) molecular wires coordinated to transition metal complexes. ACS Nano 3 (8) : 2103-2114. ScholarBank@NUS Repository. https://doi.org/10.1021/nn900570v | |
dc.identifier.issn | 19360851 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/95061 | |
dc.description.abstract | Organometallic wires are interesting alternatives to conventional molecular wires based on a pure organic system because of the presence of d orbitals in the transition metal complex. However, synthetic problems, such as decreased stability of the compounds when labile metal complexes are present, often impede their isolation in a pure state and preclude a rapid development of such hybrid molecular wires. In this work, we show that preassembled self-assembled monolayers (SAM) based on pyridine-terminated 1-((4- acetylthiophenyl)ethynyl)- 4-((4-pyridyl)ethynyl)benzene can act as a template for the architectural build up of a second layer of transition metal complexes to form an array of organometallic molecular wires on gold. RuII(terpy)(bipy) 2+ (terpy =2, 2′: 6′, 2″-terpyridine and bipy = 2, 2′-bipyridine) or cyclometalated PtII(pbipy) (pbipy = 6-phenyl-2, 2′-bipyridine) were axially coordinated onto the organic SAM via its terminal pyridinium moieties. Current-voltage studies show that the electronic coupling between the transition metal and organic wire produces a molecular wire that exhibits higher conductance than the original organic chain. The presence of the transition metal complexes in the hybrid molecular wire introduces distinctive negative differential resistance (NDR) effects. © 2009 American Chemical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/nn900570v | |
dc.source | Scopus | |
dc.subject | Molecular electronics | |
dc.subject | Molecular wire | |
dc.subject | Negative differential resistance | |
dc.subject | Scanning tunneling microscopy | |
dc.subject | Self-assembly | |
dc.type | Article | |
dc.contributor.department | PHYSICS | |
dc.contributor.department | CHEMISTRY | |
dc.description.doi | 10.1021/nn900570v | |
dc.description.sourcetitle | ACS Nano | |
dc.description.volume | 3 | |
dc.description.issue | 8 | |
dc.description.page | 2103-2114 | |
dc.identifier.isiut | 000269145000011 | |
Appears in Collections: | Staff Publications |
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