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dc.contributor.author | Barskaya I. | |
dc.contributor.author | Tretyakov E. | |
dc.contributor.author | Sagdeev R. | |
dc.contributor.author | Ovcharenko V. | |
dc.contributor.author | Bagryanskaya E. | |
dc.contributor.author | Maryunina K. | |
dc.contributor.author | Takui T. | |
dc.contributor.author | Sato K. | |
dc.contributor.author | Fedin M. | |
dc.date.accessioned | 2018-09-18T20:01:14Z | |
dc.date.available | 2018-09-18T20:01:14Z | |
dc.date.issued | 2014 | |
dc.identifier.issn | 0002-7863 | |
dc.identifier.uri | https://dspace.kpfu.ru/xmlui/handle/net/135799 | |
dc.description.abstract | Most photoswitchable molecular magnets exhibit thermally induced switching, as is typical of spin crossover (SCO), valence tautomerism and SCO-like phenomena. We report a rare case of a copper-nitroxide based molecular magnet Cu(hfac)2Li-Pr that does not exhibit quantitative SCO-like behavior in the temperature range of its chemical stability (2-350 K); however, it can be switched to a metastable thermally inaccessible spin state via visible/near-IR light at cryogenic temperatures. By means of photogeneration, unique information on this otherwise unobservable spin state has been obtained using steady-state Q-band (34 GHz) and time-resolved W-band (94 GHz) electron paramagnetic resonance (EPR) spectroscopy. In particular, we have found that the electronic structure and relaxation properties of the photoinduced state in Cu(hfac)2Li-Pr are very similar to those in its sister compound Cu(hfac)2Ln-Pr that is thermally switchable and has been exhaustively characterized by many analytical methods, previously. The first observation of photoswitchable behavior in a thermally unswitchable copper-nitroxide based molecular magnet Cu(hfac)2Li-Pr paves the way for photoswitching applications of this and similar compounds in the remarkably broad temperature range of 2-350 K. © 2014 American Chemical Society. | |
dc.relation.ispartofseries | Journal of the American Chemical Society | |
dc.title | Photoswitching of a thermally unswitchable molecular magnet Cu(hfac) 2Li-Pr evidenced by steady-state and time-resolved electron paramagnetic resonance | |
dc.type | Article | |
dc.relation.ispartofseries-issue | 28 | |
dc.relation.ispartofseries-volume | 136 | |
dc.collection | Публикации сотрудников КФУ | |
dc.relation.startpage | 10132 | |
dc.source.id | SCOPUS00027863-2014-136-28-SID84904438262 |