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Atypical photomagnetic properties in a series of binuclear iron(II) spin crossover complexes

Abstract : In this work, we have re-examined the photomagnetic properties of a series of binuclear iron(II) complexes of formula [{Fe(L)(NCX)2}2bpym], where L is bpym = 2,2-bipyrimidine and bt = 2,2-bithiazoline and X = S, Se, by light irradiation at 647.1–676.4 nm and at 830 nm and we confirm that after optical excitation the magnetic behaviors of [{Fe(bpym)(NCSe)2}2bpym](2), [{Fe(bt)(NCS)2}2bpym](3) and [{Fe(bt)(NCSe)2}2bpym](4) are close to the antiferromagnetic response of [{Fe(bpym)(NCS)2}2bpym](1) characterized by two iron(II) metal ions in the HS electronic configuration...
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Submitted on : Thursday, June 21, 2007 - 4:01:45 PM
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Guillaume Chastanet, Chiara Carbonera, Christophe Mingotaud, Jean-François Létard. Atypical photomagnetic properties in a series of binuclear iron(II) spin crossover complexes. Journal of Materials Chemistry, Royal Society of Chemistry, 2004, 14 (24), pp.3516-3523. ⟨10.1039/b408079c⟩. ⟨hal-00156585⟩

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