dc.contributor.author |
Moneo-Corcuera, Andrea |
dc.contributor.author |
Nieto-Castro, David |
dc.contributor.author |
Cirera, Jordi |
dc.contributor.author |
Gómez, Verónica |
dc.contributor.author |
Sanjosé-Orduna, Jesús |
dc.contributor.author |
Casadevall, Carla |
dc.contributor.author |
Molnár, Gábor |
dc.contributor.author |
Bousseksou, Azzedine |
dc.contributor.author |
Parella, Teodor |
dc.contributor.author |
Martínez-Agudo, José María |
dc.contributor.author |
Lloret-Fillol, Julio |
dc.contributor.author |
Pérez-Temprano, Mónica Hevia |
dc.contributor.author |
Ruiz, Eliseo |
dc.contributor.author |
Galán-Mascarós, José Ramón |
dc.date.accessioned |
2023-04-18T08:36:53Z |
dc.date.available |
2023-10-25T02:45:05Z |
dc.date.issued |
2022-10-25 |
dc.identifier.uri |
http://hdl.handle.net/2072/532935 |
dc.format.extent |
18 p. |
dc.language.iso |
eng |
dc.publisher |
Cell-Press |
dc.rights |
Creative Commons Attribution-NonCommercial-NoDerivs License, |
dc.source |
RECERCAT (Dipòsit de la Recerca de Catalunya) |
dc.subject.other |
Química |
dc.title |
Molecular memory near room temperature in an iron polyanionic complex |
dc.type |
info:eu-repo/semantics/article |
dc.type |
info:eu-repo/semantics/acceptedVersion |
dc.subject.udc |
00 - Ciència i coneixement. Investigació. Cultura. Humanitats |
dc.embargo.terms |
12 mesos |
dc.relation.projectID |
European Union (projects ERC StG grant CHEMCOMP no 279313 and ERC CoG grant GREENLIGHT_REDCAT no 648304) |
dc.relation.projectID |
Ministerio de Ciencia e Innovación for support through Severo Ochoa Excellence Accreditation 2020-2023 (CEX2019-000925-S, MIC/AEI) and Maria de Maeztu Exellence Accreditation (MDM-2017-0767) |
dc.relation.projectID |
Spanish Ministerio de Ciencia e Innovación through the projects PID2021-124796OB-I00, PGC2018-095808-B-I00, PGC2018-093863-B-C21 and PID2020-112733GB-I00 |
dc.relation.projectID |
Generalitat de Catalunya (2017-SGR-1406 and 2017-SGR-1277) |
dc.relation.projectID |
CERCA Programme/Generalitat de Catalunya |
dc.relation.projectID |
Spanish MICINN for a Ramón y Cajal research contract (RYC2018-024692-I) |
dc.relation.projectID |
Spanish Ministry of Science is acknowledged for a FPU (FPU014/02550) fellowship |
dc.identifier.doi |
10.1016/j.chempr.2022.09.025 |
dc.rights.accessLevel |
info:eu-repo/semantics/openAccess |
dc.description.abstract |
Bistable molecules represent a potential miniaturization limit for high-density information technologies. However, molecules exhibit memory effect typically at very low temperatures. This is the case of spin-crossover (SCO) complexes, where the concept of a molecular memory has not been considered due to the fast spin-state interconversion of all previous systems. Breaking this principle, here we report a slow relaxation process found in an SCO iron-triazole polyanionic complex. Multiple experimental evidences confirm the opening of a thermal hysteresis upon solid dilution and even in liquid solution. Density functional theory (DFT) calculations reveal the origin of this unexpected phenomenon to the appearance of an energy barrier that slows down the spin-state relaxation processes at the molecular level. These results show how SCO molecules may store information at room temperature, opening unique opportunities for molecular data storage. |