Artículo
A racemic and enantiopure unsymmetric diiron(III) complex with a chiral o-carborane-based pyridylalcohol ligand: Combined chiroptical, magnetic, and nonlinear optical properties
Di Salvo, Florencia
; Tsang, Min Ying; Teixidor, Francesc; Viñas, Clara; Planas, José Giner; Crassous, Jeanne; Vanthuyne, Nicolas; Aliaga Alcalde, Núria; Ruiz, Eliseo; Coquerel, Gerard; Clevers, Simon; Dupray, Valerie; Choquesillo Lazarte, Duane; Light, Mark E.; Hursthouse, Michael B.
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Fecha de publicación:
01/2014
Editorial:
Wiley VCH Verlag
Revista:
Chemistry- A European Journal
ISSN:
0947-6539
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
The design of molecule-based systems combining magnetic, chiroptical and second-order optical nonlinear properties is still very rare. We report an unusually unsymmetric diiron(III) complex 1, in which three bulky chiral carboranylpyridinealkoxide ligands (oCBhmp-) bridge both metal ions and the complex shows the above-mentioned properties. The introduction of o-carborane into the 2-(hydroxymethyl)pyridine (hmpH) architecture significantly alters the coordination of the simple or aryl-substituted 2-hmpH. The unusual architecture observed in 1 seems to be triggered by the poor nucleophilicity of our alkoxide ligand (oCBhmp-). A very rare case of spontaneous resolution takes place on precipitation or exposure to solvent vapor for the bulk compound, as confirmed by a combination of single-crystal and powder X-ray diffraction, second-harmonic generation, and circular dichroism. The corresponding enantiopure complexes (+)1 and (-)1 have also been synthesized and fully characterized. This research provides a new building block with unique geometry and electronics to construct coordination complexes with multifunctional properties.
Palabras clave:
Boron
,
Chirality
,
Iron
,
Second-Harmonic Generation
,
Spontaneous Resolution
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Articulos(INQUIMAE)
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Articulos de INST.D/QUIM FIS D/L MATERIALES MEDIOAMB Y ENERGIA
Citación
Di Salvo, Florencia; Tsang, Min Ying; Teixidor, Francesc; Viñas, Clara; Planas, José Giner; et al.; A racemic and enantiopure unsymmetric diiron(III) complex with a chiral o-carborane-based pyridylalcohol ligand: Combined chiroptical, magnetic, and nonlinear optical properties; Wiley VCH Verlag; Chemistry- A European Journal; 20; 4; 1-2014; 1081-1090
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