Investigation of the Photoinduced Magnetization of Copper Octacyanomolybdates Nanoparticles by X-ray Magnetic Circular Dichroism

被引：46

作者：

Brossard, Sophie ^{[1
]}

Volatron, Florence ^{[3
]}

Lisnard, Laurent ^{[3
]}

Arrio, Marie-Anne ^{[1
]}

Catala, Laure ^{[3
]}

Mathoniere, Corine ^{[4
]}

Mallah, Talal ^{[3
]}

Moulin, Christophe Cartier dit ^{[2
]}

Rogalev, Andrei ^{[5
]}

Smekhova, Alevtina ^{[5
]}

Sainctavit, Philippe ^{[1
]}

机构：

[1] CNRS, Inst Mineral & Phys Milieux Condenses, UMR 7590, F-75252 Paris 05, France

[2] Univ Paris 06, CNRS, Inst Parisien Chim Mol, UMR 7201, F-75252 Paris 05, France

[3] Univ Paris 11, CNRS, Inst Chim Mol & Mat dOrsay, F-91405 Orsay, France

[4] Univ Bordeaux, CNRS, ICMCB, F-33608 Pessac, France

[5] European Synchrotron Radiat Facil, F-38043 Grenoble, France

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2012年 / 134卷 / 01期

关键词：

PRUSSIAN BLUE ANALOGS; N-10 NAOH GLASSES; PHOTOCATALYTIC SYSTEMS; PHOTOMAGNETIC PROPERTIES; FERRIMAGNETIC SYSTEMS; ALKALI CATION; C-I; MOLECULE; STATE; BEHAVIOR;

D O I：

10.1021/ja204594a

中图分类号：

O6 [化学];

学科分类号：

070301 [无机化学];

摘要：

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 Cs2Cu7[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.

引用

页码：222 / 228

页数：7

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