Nuclear inelastic scattering study of a dinuclear iron(II) complex showing a direct spin transition
| Autor: | Juliusz A. Wolny, S. Rackwitz, Isabelle Faus, Hans-Christian Wille, Volker Schünemann, Kai Schlage, Yann Garcia |
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| Rok vydání: | 2016 |
| Předmět: |
Nuclear and High Energy Physics
Chemistry Scattering Spin transition Resonance 02 engineering and technology Inelastic scattering 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic and Molecular Physics and Optics 0104 chemical sciences Transition metal Spin crossover Physical and Theoretical Chemistry Atomic physics Nuclear resonance vibrational spectroscopy 0210 nano-technology Spin (physics) |
| Zdroj: | Hyperfine Interactions. 237 |
| ISSN: | 1572-9540 0304-3843 |
| DOI: | 10.1007/s10751-016-1242-4 |
| Popis: | The results of the nuclear inelastic scattering (NIS)/nuclear resonance vibrational spectroscopy (NRVS) for the powder spectra of dimeric [Fe 2 L 5(NCS) 4] (L = N-salicylidene-4-amino-1,2,4-triazole) complex are presented. This system is spin crossover (SCO) material tagged with a fluorophore that can sense or “feel” the SCO signal ripping through the molecular network and thereby providing an opportunity to register the SCO transition. The spectra have been measured for the low-spin and high-spin phases of the complex. The high-spin isomer reveals one broad band above 200 cm −1, while the low-spin one displays two intense bands in the range from 390 to 430 cm −1, accompanied by a number of weaker bands below this area and one at ca. 490 cm −1. A normal coordinate analysis based on density functional calculations yields the assignment of the spin marker bands to particular molecular modes. In addition the vibrational contribution to the spin transition has been estimated |
| Databáze: | OpenAIRE |
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