Abstract
The reaction of Fe(NO 3 ) 2 , trz, and atrz in ethanol–water gave solid Fe(trz) 3x (atrz) 3-3x (NO 3 ) 2 ·H 2 O (x = 0.1, 0.2, 0.4, 0.8). The solids were investigated by magnetic chemistry, X-ray diffraction, photoelectron (DRS), IR, and Mössbauer spectroscopy methods. The individual Fe(trz)3(NO3)2 and Fe(atrz)3(NO3)2 as well as the solid phases exhibit a reversible spin crossover 1 \(^1 A_1 \Leftrightarrow ^5 T_2 \), whose temperature and character depend on the phase composition. Due to this, T c may be changed by introducing another ligand into the complex exhibiting a spin crossover effect.
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Shakirova, O.G., Lavrenova, L.G., Shvedenkov, Y.G. et al. Spin Crossover 1 A 1⇔ 5 T 2 in Solid Fe(trz)3x(atrz)3-3x(NO3)2·H2O (trz = 1,2,4-triazole, atrz = 4-amino-1,2,4-triazole). Journal of Structural Chemistry 41, 790–797 (2000). https://doi.org/10.1023/A:1004806101577
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DOI: https://doi.org/10.1023/A:1004806101577