BROSSARD, Sophie; VOLATRON, Florence; LISNARD, Laurent; ARRIO, Marie-Anne; CATALA, Laure; MATHONIÈRE, Corine; MALLAH, Talal; CARTIER DIT MOULIN, Christophe; ROGALEV, Andrei; WILHELM, Fabrice; SMEKHOVA, Alevtina; SAINCTAVIT, Philippe

doi:10.1021/ja204594a

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BROSSARD, Sophie
Institut de minéralogie et de physique des milieux condensés [IMPMC]

VOLATRON, Florence
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]

LISNARD, Laurent
Institut de Chimie Moléculaire et des Matériaux d'Orsay [ICMMO]

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Journal of the American Chemical Society. 2012, vol. 134, n° 1, p. 222-228

American Chemical Society

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Through an extensive set of SQUID magnetic measurements, X-ray absorption spectroscopy, and X-ray magnetic circular dichroism, we have determined the nature of the metastable photomagnetic phase in the cyano-bridged 3D network Cs(2)Cu(7)[Mo(CN)(8)](4). The photomagnetic effect is induced by the photoconversion of Mo(IV) ions in low spin (LS) configuration (S = 0) into Mo(IV) ions in high spin (HS) configuration (S = 1). The magnetic and spectroscopic measurements fully support the LS to HS conversion, whereas the previously invoked charge transfer mechanism Mo(IV) + Cu(II) ⇒ Mo(V) + Cu(I) can be completely ruled out.< Leer menos

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Metastable photomagnetic phase

Copper

Chemical compounds

SQUID

X-ray absorption spectroscopy

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Investigation of the photoinduced magnetization of copper octacyanomolybdates nanoparticles by X-ray magnetic circular dichroism

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