Direct C−N Coupling in an in Situ Ligand Transformation and the Self-Assembly of a Tetrametallic [NiII4] Staircase
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en
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Inorganic Chemistry. 2015-05-18, vol. 54, n° 11, p. 5136-5138
American Chemical Society
Resumen en inglés
A [NiII4] staircase complex was serendipitously prepared from the reaction of the binucleating Schiff base proligand 2,6-bis[[(3-hydroxypropyl)imino]-methyl]-4-methylphenol (H3L2) and 3,5-dimethylpyrazole (Me2pzH) with ...Leer más >
A [NiII4] staircase complex was serendipitously prepared from the reaction of the binucleating Schiff base proligand 2,6-bis[[(3-hydroxypropyl)imino]-methyl]-4-methylphenol (H3L2) and 3,5-dimethylpyrazole (Me2pzH) with nickel(II) nitrate in a reaction at room temperature, initially aimed to yield a dinuclear complex. From a room temperature metal ion/ligand reaction, the proligand H3L2 in situ transformed to modified formsHL32− and HL42−, allowing the [Ni4] formation. Variable temperature magnetic behavior of a [Ni4] complex reveals antiferromagnetic interactions with stabilization of a diamagnetic ground state (ST = 0).< Leer menos
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