000061585 001__ 61585
000061585 005__ 20200221144336.0
000061585 0247_ $$2doi$$a10.1021/jacs.6b02151
000061585 0248_ $$2sideral$$a95369
000061585 037__ $$aART-2016-95369
000061585 041__ $$aeng
000061585 100__ $$aVasseur, G.
000061585 245__ $$ap Band Dispersion Along Conjugated Organic Nanowires Synthesized on a Metal Oxide Semiconductor
000061585 260__ $$c2016
000061585 5060_ $$aAccess copy available to the general public$$fUnrestricted
000061585 5203_ $$aSurface-confined dehalogenation reactions are versatile bottom-up approaches for the synthesis of carbonbased nanostructures with predefined chemical properties. However, for devices generally requiring low-conductivity substrates, potential applications are so far severely hampered by the necessity of a metallic surface to catalyze the reactions. In this work we report the synthesis of ordered arrays of poly(p-phenylene) chains on the surface of semiconducting TiO2(110) via a dehalogenative homocoupling of 4, 4¿- dibromoterphenyl precursors. The supramolecular phase is clearly distinguished from the polymeric one using low-energy electron diffraction and scanning tunneling microscopy as the substrate temperature used for deposition is varied. X-ray photoelectron spectroscopy of C 1s and Br 3d core levels traces the temperature of the onset of dehalogenation to around 475 K. Moreover, angle-resolved photoemission spectroscopy and tightbinding calculations identify a highly dispersive band characteristic of a substantial overlap between the precursor''s p states along the polymer, considered as the fingerprint of a successful polymerization. Thus, these results establish the first spectroscopic evidence that atomically precise carbon-based nanostructures can readily be synthesized on top of a transition-metal oxide surface, opening the prospect for the bottom-up production of novel molecule-semiconductor devices.
000061585 536__ $$9info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46593-C6-4-P$$9info:eu-repo/grantAgreement/ES/MINECO/MAT2013-46593-C6-2-P$$9This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No H2020 635919-SURFINK$$9info:eu-repo/grantAgreement/EC/H2020/635919/EU/Functional materials from on-surface linkage of molecular precursors/SURFINK$$9info:eu-repo/grantAgreement/EC/FP7/610446/EU/Planar Atomic and Molecular Scale devices/PAMS
000061585 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000061585 590__ $$a13.858$$b2016
000061585 591__ $$aCHEMISTRY, MULTIDISCIPLINARY$$b10 / 166 = 0.06$$c2016$$dQ1$$eT1
000061585 592__ $$a7.492$$b2016
000061585 593__ $$aBiochemistry$$c2016$$dQ1
000061585 593__ $$aColloid and Surface Chemistry$$c2016$$dQ1
000061585 593__ $$aChemistry (miscellaneous)$$c2016$$dQ1
000061585 593__ $$aCatalysis$$c2016$$dQ1
000061585 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000061585 700__ $$aAbadia, M.
000061585 700__ $$aMiccio, L.A.
000061585 700__ $$aBrede, J.
000061585 700__ $$aGarcia-Lekue, A.
000061585 700__ $$aDe Oteyza, D.G.
000061585 700__ $$aRogero, C.
000061585 700__ $$0(orcid)0000-0003-2698-2543$$aLobo-Checa, J.
000061585 700__ $$aOrtega, J.E.
000061585 773__ $$g138, 17 (2016), 5685-5692$$pJ. Am. Chem. Soc.$$tJOURNAL OF THE AMERICAN CHEMICAL SOCIETY$$x0002-7863
000061585 8564_ $$s5982742$$uhttps://zaguan.unizar.es/record/61585/files/texto_completo.pdf$$yVersión publicada
000061585 8564_ $$s125915$$uhttps://zaguan.unizar.es/record/61585/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000061585 909CO $$ooai:zaguan.unizar.es:61585$$particulos$$pdriver
000061585 951__ $$a2020-02-21-13:47:25
000061585 980__ $$aARTICLE