First example of photomagnetic effects in ionic pairs [Ni(bipy)3]2[Mo(CN)8] · 12H2O
Language
en
Article de revue
This item was published in
Inorganica Chimica Acta. 2008, vol. 361, n° 12-13, p. 3500-3504
Elsevier
English Abstract
Ionic triads formed by [NiII(bipy)3]2+ (bipy = 2,20-bipyridyl) and diamagnetic [MIV(CN)8]4 (M = Mo and W) were prepared and structurally characterized. The two compounds are isostructural and their structure consists of a ...Read more >
Ionic triads formed by [NiII(bipy)3]2+ (bipy = 2,20-bipyridyl) and diamagnetic [MIV(CN)8]4 (M = Mo and W) were prepared and structurally characterized. The two compounds are isostructural and their structure consists of a three-dimensional hydrogen-bonded framework where cation–anion interactions occur through short contacts M–CN H–C(bipy). Before irradiation, the Mo analogue behaves as paramagnet with small intermolecular interactions between the [NiII(bipy)3]2+ cations. Upon irradiation with visible light, it exhibits a reversible photomagnetic effect, which is interpreted in terms of the formation of paramagnetic [MoV(CN)8]3 and [NiII(bipy)2(bipy )]+ due to the outer-sphere electron transfer.Read less <
English Keywords
Coordination compounds
Octacyanomolybdate
Electron transfer
Magnetism
Photomagnetism
Origin
Hal imported