Switching on thermal and light-induced spin crossover by desolvation of [Fe(3-bpp)2](XO4)2·solvent (X = Cl, Re) compounds
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Research Unit of Medicinal Plants [RUMP] | |
dc.contributor.author | DJEMEL, Abdelhak | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
hal.structure.identifier | Department of Chemistry [Tokyo] | |
dc.contributor.author | STEFANCZYK, Olaf | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | DESPLANCHES, Cédric | |
hal.structure.identifier | Department of Chemistry [Tokyo] | |
dc.contributor.author | KUMAR, Kunal | |
hal.structure.identifier | Laboratory of Water Treatment and Valorization of Industrial Wastes | |
dc.contributor.author | DELIMI, Rachid | |
hal.structure.identifier | Research Unit of Medicinal Plants [RUMP] | |
dc.contributor.author | BENACEUR, Farouk | |
hal.structure.identifier | Department of Chemistry [Tokyo] | |
dc.contributor.author | OHKOSHI, Shin-Ichi | |
hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
dc.contributor.author | CHASTANET, Guillaume | |
dc.date.issued | 2021-06-29 | |
dc.identifier.issn | 2052-1553 | |
dc.description.abstractEn | Thermal desolvation is a very attractive method for the post-synthetic modification of the physicochemical properties of switchable materials. In this field of research, special attention has been paid to the possibility of modifying the thermo- and photo-induced spin crossover (SCO) properties of metal complexes as they can act as solvent sensors. Two new [Fe(3-bpp)2](ClO4)2·2.5H2O·MeOH (1·sol) and [Fe(3-bpp)2](ReO4)2·3H2O (2·sol) compounds, where 3-bpp is 2,6-di-(1H-pyrazol-3-yl)pyridine, were prepared and structurally characterized, and their solvated and desolvated phases were additionally investigated spectroscopically, magnetically and photomagnetically. Single-crystal X-ray structures of 1·sol and 2·sol consist of similar [Fe(3-bpp)2]2+ units arranged in π–π stacked layers separated by H-bond-stabilised layers consisting of solvent molecules and anions. Moreover, both materials show desolvation-assisted SCO from a low (LS, S = 0) to high-spin state (HS, S = 2) at around 340 K, followed by a reversible gradual spin conversion with T1/2 ≈ 210 K and 304 K for 1 and 2, respectively. Photomagnetic studies of 1·sol and 1 confirmed the efficiency of the light-induced excited spin-state trapping (LIESST) phenomenon with relaxation temperatures T(LIESST) = 82 K and 66 K for the solvated and desolvated phases, respectively. In the case of 2·sol, no LIESST effect was observed while the desolvated phase 2 exhibits a LIESST behaviour at T(LIESST) ≈ 50 K. | |
dc.description.sponsorship | Bistabilité magnétique dans de nouveaux systèmes moléculaires à base de ligands anioniques pontants - ANR-12-BS07-0030 | |
dc.description.sponsorship | Etude femtoseconde rayons X et optique de la dynamique ultrarapide de photocommutation de matériaux moléculaires magnétiques - ANR-13-BS04-0002 | |
dc.language.iso | en | |
dc.publisher | Royal Society of Chemistry | |
dc.title.en | Switching on thermal and light-induced spin crossover by desolvation of [Fe(3-bpp)2](XO4)2·solvent (X = Cl, Re) compounds | |
dc.type | Article de revue | |
dc.identifier.doi | 10.1039/d1qi00446h | |
dc.subject.hal | Chimie/Matériaux | |
bordeaux.journal | Inorganic Chemistry Frontiers | |
bordeaux.page | 3210-3221 | |
bordeaux.volume | 8 | |
bordeaux.issue | 13 | |
bordeaux.peerReviewed | oui | |
hal.identifier | hal-03284346 | |
hal.version | 1 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-03284346v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Inorganic%20Chemistry%20Frontiers&rft.date=2021-06-29&rft.volume=8&rft.issue=13&rft.spage=3210-3221&rft.epage=3210-3221&rft.eissn=2052-1553&rft.issn=2052-1553&rft.au=DJEMEL,%20Abdelhak&STEFANCZYK,%20Olaf&DESPLANCHES,%20C%C3%A9dric&KUMAR,%20Kunal&DELIMI,%20Rachid&rft.genre=article |
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