151005 20251017144616.0 doi 10.1021/acs.jpcc.1c04213 sideral 126069 ART-2021-126069 eng Ulloa, J.A. (orcid)0000-0002-0840-1197 Magnetism of Dendrimer-Coated Gold Nanoparticles: A Size and Functionalization Study 2021 Access copy available to the general public Unrestricted Highly sensitive magnetometry reveals paramagnetism in dendrimer-coated gold nanoparticles. Different types of such nanoparticles, as a result of (i) functionalizing with two distinct Percec-type dendrons, linked to gold via dodecanethiol groups, and (ii) postsynthesis annealing in a solvent-free environment that further promotes their growth have been prepared. Ultimately, for each of the two functionalization configurations, we obtain highly monodisperse and stable nanoparticles of two different sizes, with spherical shape. These characteristics allow singling out the source of the measured paramagnetic signals as exclusively arising from the undercoordinated gold atoms on the surfaces of the nanoparticles. Bulk gold and the functional groups of the ligands contribute only diamagnetically. info:eu-repo/grantAgreement/ES/DGA-FSE/E47-17R info:eu-repo/grantAgreement/ES/MINECO-FEDER/PGC2018-097583-B-I00 info:eu-repo/grantAgreement/ES/MINECO/RTI2018-094909-J-I00 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 4.177 2021 CHEMISTRY, PHYSICAL 78 / 165 = 0.473 2021 Q2 T2 MATERIALS SCIENCE, MULTIDISCIPLINARY 143 / 344 = 0.416 2021 Q2 T2 NANOSCIENCE & NANOTECHNOLOGY 62 / 108 = 0.574 2021 Q3 T2 1.103 2021 Electronic, Optical and Magnetic Materials 2021 Q1 Surfaces, Coatings and Films 2021 Q1 Physical and Theoretical Chemistry 2021 Q1 Energy (miscellaneous) 2021 Q1 7.0 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Lorusso, G. (orcid)0000-0002-4078-6808 Evangelisti, M. (orcid)0000-0002-8028-9064 Camon, A. (orcid)0000-0001-7289-5649 Barbera, J. Universidad de Zaragoza (orcid)0000-0001-5816-7960 Serrano, J.L. Universidad de Zaragoza (orcid)0000-0001-9866-6633 2013 765 Universidad de Zaragoza Dpto. Química Orgánica Área Química Orgánica 125, 37 (2021), 20482-20487 J. phys. chem., C Journal of physical chemistry. C. 1932-7447 2342957 http://zaguan.unizar.es/record/151005/files/texto_completo.pdf Versión publicada 3017556 http://zaguan.unizar.es/record/151005/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:151005 articulos driver 2025-10-17-14:19:19 ARTICLE