6533b821fe1ef96bd127acce

RESEARCH PRODUCT

Bimetallic cyanide-bridged complexes based on the photochromic nitroprusside anion and paramagnetic metal complexes

Carlos J. Gómez-garcíaTh. WoikeEugenio CoronadoMiguel Clemente-leónF BellouardJosé Ramón Galán-mascarósCarlos Giménez-saiz

subject

chemistry.chemical_classificationCyanidePhotomagnetismCoordination complexInorganic ChemistryMetalchemistry.chemical_compoundPhotochromismParamagnetismCrystallographychemistryvisual_artCyclamMaterials Chemistryvisual_art.visual_art_mediumPhysical and Theoretical ChemistryBimetallic strip

description

Abstract Three novel compounds formed by the photochromic nitroprusside anion, [Fe(CN)5NO]2−, and the paramagnetic complexes [Cu(C19H18N6)]2+, [Ni(C6H14N2)2]2+ and [Ni(cyclam)]2+ are reported. The structure of [Cu(C19H18N6)][Fe(CN)5NO] (1) comprises binuclear complexes with a [Fe(CN)5NO]2− anion linked to a [Cu(C19H18N6)]2+ cation. The structure of [Ni(C6H14N2)2][Fe(CN)5NO]·6.5H2O (2) and [Ni(cyclam)][Fe(CN)5NO]·4H2O (3) consists of zigzag chains formed by an alternate array of the paramagnetic cations and [Fe(CN)5NO]2− anions. The three compounds are paramagnets; a fourth compound containing [cis-Ni(en)2]2+ cations and [Fe(CN)5NO]− anions does not show a change in the magnetic properties after irradiation. In compounds 1 and 2 the first metastable state of the nitroprusside anion has been detected by differential scanning calorimetry at 172 and 180 K, respectively.

yearjournalcountryeditionlanguage
2001-05-01Polyhedron
https://doi.org/10.1016/s0277-5387(01)00662-3