Dinuclear Iron(II) Spin-Crossover Compounds: A Theoretical Study
نویسندگان
چکیده
منابع مشابه
Thermal and light induced spin crossover behavior of a dinuclear Fe(II) compound.
A dinuclear Fe(II) compound has been prepared through the reaction of 2,5-dichloride-4-phenylimino-1,2,4-triazole (L) with Fe(BF4)2·6H2O, with the formula [Fe2(L)5(SCN)4](H2O) (1). X-ray, magnetic, and (57)Fe Mössbauer characterizations showed that compound exhibited a spin crossover (SCO) behavior with T1/2 = 150 K. The study shows that introducing chloride groups on the ligand exerts a positi...
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Reported herein are the synthesis, structural, magnetic and Mössbauer spectroscopic characterisation of a dinuclear Fe(II) triple helicate complex [Fe(2)(L)(3)](ClO(4))(4).xH(2)O (x = 1-4), 1(H(2)O), where L is a bis-bidentate imidazolimine ligand. Low temperature structural analysis (150 K) and Mössbauer spectroscopy (4.5 K) are consistent with one of the Fe(II) centres within the helicate bei...
متن کاملAsymmetric spin crossover behaviour and evidence of light-induced excited spin state trapping in a dinuclear iron(II) helicatew
Currently there is an ever increasing interest in spin crossover compounds, partly motivated by their potential application as molecular memory or visual display devices, which has led to a better understanding of the parameters (temperature, pressure, light, structure etc.) that influence this fascinating phenomenon. Spin crossover is best exemplified by the low spin Fe (S = 0) to high spin Fe...
متن کاملSpin-crossover behaviors in solvated cobalt(ii) compounds.
Two solvated cobalt(ii) terpyridine complexes, [Co(MeO-terpy)2](BF4)2·H2O (·H2O) and [Co(MeO-terpy)2](BF4)2·acetone (·acetone) were prepared. Annealing each of these complexes resulted in the formation of two desolvated species, and , respectively. ·H2O and exhibited two-step and gradual SCO. The compound ·acetone has high-spin at all temperatures and undergoes a reverse spin transition due to ...
متن کاملAsymmetric spin crossover behaviour and evidence of light-induced excited spin state trapping in a dinuclear iron(II) helicate.
Reported herein are the synthesis, structural and magnetic characterisation of a dinuclear FeII triple helicate that displays an unprecedented reversible asymmetric high spin to low spin crossover characterised by a thermal hysteresis: indeed the high spin state can be recovered by white light irradiation at 10 K.
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ژورنال
عنوان ژورنال: Chemistry - A European Journal
سال: 2017
ISSN: 0947-6539
DOI: 10.1002/chem.201704441