000132311 001__ 132311
000132311 005__ 20240301161208.0
000132311 0247_ $$2doi$$a10.1021/acs.nanolett.3c04111
000132311 0248_ $$2sideral$$a137476
000132311 037__ $$aART-2024-137476
000132311 041__ $$aeng
000132311 100__ $$aAbadia, Mikel
000132311 245__ $$aEnhancing Haloarene Coupling Reaction Efficiency on an Oxide Surface by Metal Atom Addition
000132311 260__ $$c2024
000132311 5060_ $$aAccess copy available to the general public$$fUnrestricted
000132311 5203_ $$aThe bottom-up synthesis of carbon-based nanomaterials directly on semiconductor surfaces allows for the decoupling of their electronic and magnetic properties from the substrates. However, the typically reduced reactivity of such nonmetallic surfaces adversely affects the course of these reactions. Here, we achieve a high polymerization yield of halogenated polyphenyl molecular building blocks on the semiconducting TiO2(110) surface via concomitant surface decoration with cobalt atoms, which catalyze the Ullmann coupling reaction. Specifically, cobalt atoms trigger the debromination of 4,4″-dibromo-p-terphenyl molecules on TiO2(110) and mediate the formation of an intermediate organometallic phase already at room temperature (RT). As the debromination temperature is drastically reduced, homocoupling and polymerization readily proceed, preventing presursor desorption from the substrate and entailing a drastic increase of the poly-para-phenylene polymerization yield. The general efficacy of this mechanism is shown with an iodinated terphenyl derivative, which exhibits similar dehalogenation and reaction yield.
000132311 536__ $$9info:eu-repo/grantAgreement/ES/MCIU/PID2020-114252GB-I00$$9info:eu-repo/grantAgreement/EUR/MCIU/TED2021-130292B-C42$$9info:eu-repo/grantAgreement/EUR/MCIU/TED2021-132388B-C43
000132311 540__ $$9info:eu-repo/semantics/openAccess$$aby$$uhttp://creativecommons.org/licenses/by/3.0/es/
000132311 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000132311 700__ $$aPiquero-Zulaica, Ignacio
000132311 700__ $$aBrede, Jens
000132311 700__ $$aVerdini, Alberto
000132311 700__ $$aFloreano, Luca
000132311 700__ $$aBarth, Johannes V.
000132311 700__ $$0(orcid)0000-0003-2698-2543$$aLobo-Checa, Jorge
000132311 700__ $$aCorso, Martina
000132311 700__ $$aRogero, Celia
000132311 773__ $$g24, 6 (2024), 1923-1930$$pNano lett.$$tNano Letters$$x1530-6984
000132311 8564_ $$s4084675$$uhttps://zaguan.unizar.es/record/132311/files/texto_completo.pdf$$yVersión publicada
000132311 8564_ $$s3335727$$uhttps://zaguan.unizar.es/record/132311/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000132311 909CO $$ooai:zaguan.unizar.es:132311$$particulos$$pdriver
000132311 951__ $$a2024-03-01-14:54:36
000132311 980__ $$aARTICLE