132311 20260217205509.0 doi 10.1021/acs.nanolett.3c04111 sideral 137476 ART-2024-137476 eng Abadia, Mikel Enhancing Haloarene Coupling Reaction Efficiency on an Oxide Surface by Metal Atom Addition 2024 Access copy available to the general public Unrestricted The 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. info:eu-repo/grantAgreement/ES/MCIU/PID2020-114252GB-I00 info:eu-repo/grantAgreement/EUR/MCIU/TED2021-130292B-C42 info:eu-repo/grantAgreement/EUR/MCIU/TED2021-132388B-C43 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 9.1 2024 CHEMISTRY, PHYSICAL 34 / 185 = 0.184 2024 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 68 / 461 = 0.148 2024 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 24 / 147 = 0.163 2024 Q1 T1 PHYSICS, CONDENSED MATTER 10 / 80 = 0.125 2024 Q1 T1 CHEMISTRY, MULTIDISCIPLINARY 34 / 239 = 0.142 2024 Q1 T1 PHYSICS, APPLIED 23 / 187 = 0.123 2024 Q1 T1 2.967 2024 Bioengineering 2024 Q1 Chemistry (miscellaneous) 2024 Q1 Nanoscience and Nanotechnology 2024 Q1 Materials Science (miscellaneous) 2024 Q1 Mechanical Engineering 2024 Q1 Condensed Matter Physics 2024 Q1 14.9 2024 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Piquero-Zulaica, Ignacio Brede, Jens Verdini, Alberto Floreano, Luca Barth, Johannes V. Lobo-Checa, Jorge (orcid)0000-0003-2698-2543 Corso, Martina Rogero, Celia 24, 6 (2024), 1923-1930 Nano lett. Nano Letters 1530-6984 4084675 http://zaguan.unizar.es/record/132311/files/texto_completo.pdf Versión publicada 3335727 http://zaguan.unizar.es/record/132311/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:132311 articulos driver 2026-02-17-20:24:26 ARTICLE