Matches in SemOpenAlex for { <https://semopenalex.org/work/W2890763124> ?p ?o ?g. }
- W2890763124 endingPage "6391" @default.
- W2890763124 startingPage "6387" @default.
- W2890763124 abstract "Polymethine dyes are linear π-conjugated compounds with an odd number of carbons that display a much greater delocalization in comparison to polyenes that have an even number of carbon atoms in their main chain. Herein, we perform scanning tunneling microscope based break-junction measurements on a series of three cyanine dyes of increasing length. We demonstrate, at the single molecule level, that these short chain polymethine systems exhibit a substantially smaller decay in conductance with length (attenuation factor β = 0.04 Å–1) compared to traditional polyenes (β ≈ 0.2 Å–1). Furthermore, we show that by changing solvent we are able to shift the β value, demonstrating a remarkable negative β value, with conductance increasing with molecular length. First principle calculations provide support for the experimentally observed near-uniform length dependent conductance and further suggest that the variations in β with solvent are due to solvent-induced changes in the alignment of the frontier molecular orbitals relative to the Fermi energy of the leads. A simplified Hückel model suggests that the smaller decay in conductance correlates with the smaller degree of bond order alternation present in polymethine compounds compared to polyenes. These findings may enable the design of molecular wires without a length-dependent decay for efficient electron transport at the nanoscale." @default.
- W2890763124 created "2018-09-27" @default.
- W2890763124 creator A5031305744 @default.
- W2890763124 creator A5040132017 @default.
- W2890763124 creator A5050152527 @default.
- W2890763124 creator A5052563931 @default.
- W2890763124 creator A5068396668 @default.
- W2890763124 creator A5087315479 @default.
- W2890763124 date "2018-09-06" @default.
- W2890763124 modified "2023-10-14" @default.
- W2890763124 title "Near Length-Independent Conductance in Polymethine Molecular Wires" @default.
- W2890763124 cites W1630368370 @default.
- W2890763124 cites W1963542324 @default.
- W2890763124 cites W1963664631 @default.
- W2890763124 cites W1966220862 @default.
- W2890763124 cites W1971944253 @default.
- W2890763124 cites W1972815794 @default.
- W2890763124 cites W1974873037 @default.
- W2890763124 cites W1977968861 @default.
- W2890763124 cites W1980054224 @default.
- W2890763124 cites W1982649383 @default.
- W2890763124 cites W1985178158 @default.
- W2890763124 cites W1995808108 @default.
- W2890763124 cites W2005197716 @default.
- W2890763124 cites W2016667630 @default.
- W2890763124 cites W2023150460 @default.
- W2890763124 cites W2031978165 @default.
- W2890763124 cites W2035794494 @default.
- W2890763124 cites W2052568700 @default.
- W2890763124 cites W2053238537 @default.
- W2890763124 cites W2055385333 @default.
- W2890763124 cites W2056768161 @default.
- W2890763124 cites W2057968182 @default.
- W2890763124 cites W2074690824 @default.
- W2890763124 cites W2075544990 @default.
- W2890763124 cites W2079133717 @default.
- W2890763124 cites W2090493368 @default.
- W2890763124 cites W2091842121 @default.
- W2890763124 cites W2095207366 @default.
- W2890763124 cites W2101349844 @default.
- W2890763124 cites W2117669627 @default.
- W2890763124 cites W2123808900 @default.
- W2890763124 cites W2135002195 @default.
- W2890763124 cites W2148424525 @default.
- W2890763124 cites W2232280150 @default.
- W2890763124 cites W2238622081 @default.
- W2890763124 cites W2266743971 @default.
- W2890763124 cites W2319767090 @default.
- W2890763124 cites W2322410119 @default.
- W2890763124 cites W2334545015 @default.
- W2890763124 cites W2408599596 @default.
- W2890763124 cites W2563336203 @default.
- W2890763124 cites W3147650139 @default.
- W2890763124 doi "https://doi.org/10.1021/acs.nanolett.8b02743" @default.
- W2890763124 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/30187756" @default.
- W2890763124 hasPublicationYear "2018" @default.
- W2890763124 type Work @default.
- W2890763124 sameAs 2890763124 @default.
- W2890763124 citedByCount "39" @default.
- W2890763124 countsByYear W28907631242018 @default.
- W2890763124 countsByYear W28907631242019 @default.
- W2890763124 countsByYear W28907631242020 @default.
- W2890763124 countsByYear W28907631242021 @default.
- W2890763124 countsByYear W28907631242022 @default.
- W2890763124 countsByYear W28907631242023 @default.
- W2890763124 crossrefType "journal-article" @default.
- W2890763124 hasAuthorship W2890763124A5031305744 @default.
- W2890763124 hasAuthorship W2890763124A5040132017 @default.
- W2890763124 hasAuthorship W2890763124A5050152527 @default.
- W2890763124 hasAuthorship W2890763124A5052563931 @default.
- W2890763124 hasAuthorship W2890763124A5068396668 @default.
- W2890763124 hasAuthorship W2890763124A5087315479 @default.
- W2890763124 hasConcept C121332964 @default.
- W2890763124 hasConcept C121932024 @default.
- W2890763124 hasConcept C139358910 @default.
- W2890763124 hasConcept C147120987 @default.
- W2890763124 hasConcept C147597530 @default.
- W2890763124 hasConcept C159467904 @default.
- W2890763124 hasConcept C174920882 @default.
- W2890763124 hasConcept C178790620 @default.
- W2890763124 hasConcept C185592680 @default.
- W2890763124 hasConcept C192562407 @default.
- W2890763124 hasConcept C26873012 @default.
- W2890763124 hasConcept C32909587 @default.
- W2890763124 hasConcept C40636707 @default.
- W2890763124 hasConcept C41999313 @default.
- W2890763124 hasConcept C62520636 @default.
- W2890763124 hasConcept C70050531 @default.
- W2890763124 hasConceptScore W2890763124C121332964 @default.
- W2890763124 hasConceptScore W2890763124C121932024 @default.
- W2890763124 hasConceptScore W2890763124C139358910 @default.
- W2890763124 hasConceptScore W2890763124C147120987 @default.
- W2890763124 hasConceptScore W2890763124C147597530 @default.
- W2890763124 hasConceptScore W2890763124C159467904 @default.
- W2890763124 hasConceptScore W2890763124C174920882 @default.
- W2890763124 hasConceptScore W2890763124C178790620 @default.
- W2890763124 hasConceptScore W2890763124C185592680 @default.
- W2890763124 hasConceptScore W2890763124C192562407 @default.