Abstract
The thermal and photo-induced switching properties of the recently published molecular spin crossover complex [Fe(H4L)2](ClO4)2·H2O·2(CH3)2CO (1) have been investigated in detail through Raman spectroscopy. Magnetometric and single crystal X-ray diffraction kinetic studies within the hysteresis loop have proven its metastable character, which allowed establishing the shape of the true, quasi-static hysteresis loop. This is related to the proximity of the temperatures of the thermal high to low spin SCO (T1/2↓) to those of the relaxation of the thermally or photo-generated metastable states (T(TIESST) and T(LIESST), respectively). Green light irradiation within the hysteresis loop results in a complete low to high spin photo-switch. In addition, the SCO of 1 at room temperature can be induced by applying pressure, as followed by Raman spectroscopy.
Original language | English |
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Pages (from-to) | 729-737 |
Number of pages | 9 |
Journal | Dalton Transactions |
Volume | 43 |
Issue number | 2 |
DOIs | |
Publication status | Published - 3 Oct 2013 |
Keywords
- photo-induced switching
- pressure-induced transition
- molecular spin crossover complex