Heteroleptic Iron(III) Spin Crossover Complexes; Ligand Substitution Effects
AbstractHeteroleptic iron(III) complexes of formula [Fe(qsal-Cl)(thsa)]∙nMeCN have been synthesized; [Fe(qsal-Cl)(thsa)]∙MeCN, 1 and [Fe(qsal-Cl)(thsa)], 2. The latter can be obtained by slow evaporation of solutions of compound 1 under ambient conditions, a rare occurrence in nonporous compounds. 1 interestingly shows a unique magnetic profile over the de-solvation temperature range, 300-350 K, in the first cycle, and becomes stable after the third cycle with a hysteresis width of about 20 K. Different de-solvation techniques used on compound 1 give rise to various stable de-solvated phases. Consequently, distinct magnetic profiles, with a larger hysteresis width of about 30 K, are present. Cl substitution on the qsal− ligand introduces C–H∙∙∙Cl and P4AE interactions into the structure which are absent in the related unsubstituted compound, [Fe(qsal)(thsa)]∙0.5MeCN, 3. Comparisons in structural packing, as well as spin crossover properties between unsubstituted and Cl-substituted ligand compounds, are discussed. View Full-Text
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Phonsri, W.; Macedo, D.S.; Moubaraki, B.; Cashion, J.D.; Murray, K.S. Heteroleptic Iron(III) Spin Crossover Complexes; Ligand Substitution Effects. Magnetochemistry 2016, 2, 3.
Phonsri W, Macedo DS, Moubaraki B, Cashion JD, Murray KS. Heteroleptic Iron(III) Spin Crossover Complexes; Ligand Substitution Effects. Magnetochemistry. 2016; 2(1):3.Chicago/Turabian Style
Phonsri, Wasinee; Macedo, David S.; Moubaraki, Boujemaa; Cashion, John D.; Murray, Keith S. 2016. "Heteroleptic Iron(III) Spin Crossover Complexes; Ligand Substitution Effects." Magnetochemistry 2, no. 1: 3.
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