Towards rationalizing photoswitchable behavior of Cu 2 II Mo IV cyanido-bridged molecule
| dc.rights.license | open | en_US |
| dc.contributor.author | PELKA, Robert | |
| dc.contributor.author | STEFANCZYK, Olaf | |
| dc.contributor.author | MAJCHER-FITAS, Anna Malgorzata | |
| hal.structure.identifier | Centre de Recherche Paul Pascal [CRPP] | |
| dc.contributor.author | MATHONIERE, Corine | |
| dc.contributor.author | SIEKLUCKA, Barbara | |
| dc.date.accessioned | 2022-06-16T13:54:24Z | |
| dc.date.available | 2022-06-16T13:54:24Z | |
| dc.date.issued | 2022 | |
| dc.identifier.issn | 3048853 | en_US |
| dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/140245 | |
| dc.description.abstractEn | [Cu(enpnen)]2[Mo(CN)8]7H2O (enpnen = N,N - bis(2- aminoethyl)- 1,3 - propane-diamine) molecular cluster compound (1) was subject to a series of irradiations with the light of 405 nm. On irradiation isothermal magnetization at 1.8 and 5 K in the field range 0–70 kOe as well as magnetic susceptibility in the temperature range of 2–300 K were subsequently detected. Both types of magnetic signals were next analyzed assuming that the irradiation triggers two independent processes: the metal to metal charge transfer (MMCT) leading to a state with the Arrhenius-type relaxation and the spin crossover (SC) transition ending in a state whose relaxation displays a threshold behavior. The first mechanism leads to an electron from the spinless Mo(IV) configuration being transferred to one of the Cu(II) ions transforming the trimer into the state Cu(II)-N-C-Mo(V)-C-N-Cu(I), with spin 1/2 on the Mo(V) ion and the spinless Cu(I) ion. The other mechanism gives rise to an excited paramagnetic Mo(IV) linked to two paramagnetic Cu(II) centers with a possible superexchange interaction. The spin of the excited Mo(IV) species is equal to 1 and associated to a disruption of the 5s-electronic pair. A reasonable result of simultaneous fitting the full series of susceptibility and magnetization data to the model taking into account both mechanisms corroborates their presence. | |
| dc.language.iso | EN | en_US |
| dc.subject.en | Photomagnetism | |
| dc.subject.en | Octacyanidometallates | |
| dc.subject.en | Susceptibility | |
| dc.subject.en | Magnetization | |
| dc.subject.en | Relaxation | |
| dc.title.en | Towards rationalizing photoswitchable behavior of Cu 2 II Mo IV cyanido-bridged molecule | |
| dc.title.alternative | J. Magn. Magn. Mater | |
| dc.type | Article de revue | en_US |
| dc.identifier.doi | 10.1016/j.jmmm.2021.168697 | en_US |
| dc.subject.hal | Chimie/Matériaux | en_US |
| dc.identifier.arxiv | 2111.11822v1 | |
| bordeaux.journal | Journal of Magnetism and Magnetic Materials | en_US |
| bordeaux.page | 168697 | en_US |
| bordeaux.volume | 544 | en_US |
| bordeaux.hal.laboratories | Centre de Recherche Paul Pascal (CRPP) - UMR 5031 | en_US |
| bordeaux.institution | Université de Bordeaux | en_US |
| bordeaux.institution | CNRS | en_US |
| bordeaux.team | Matériaux moléculaires et magnétisme (M3) | |
| bordeaux.peerReviewed | oui | en_US |
| bordeaux.inpress | non | en_US |
| hal.identifier | hal-03697247 | |
| hal.version | 1 | |
| hal.export | true | |
| dc.rights.cc | Pas de Licence CC | en_US |
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