Octacyanidotungstate(IV) Coordination Chains Demonstrate a Light‐Induced Excited Spin State Trapping Behavior and Magnetic Exchange Photoswitching | Zendy

Magott Michał | Zendy; Stefańczyk Olaf | Zendy; Sieklucka Barbara | Zendy; Pinkowicz Dawid | Zendy

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Octacyanidotungstate(IV) Coordination Chains Demonstrate a Light‐Induced Excited Spin State Trapping Behavior and Magnetic Exchange Photoswitching

Author(s) -

Magott Michał,

Stefańczyk Olaf,

Sieklucka Barbara,

Pinkowicz Dawid

Publication year - 2017

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201703934

Subject(s) - excited state , trapping , chemistry , spin trapping , spin states , magnetization , irradiation , photochemistry , spin (aerodynamics) , atomic physics , radical , physics , magnetic field , inorganic chemistry , ecology , organic chemistry , quantum mechanics , nuclear physics , biology , thermodynamics

A huge increase in the magnetization of two coordination chains based on tetravalent octacyanidometalates (W IV and Mo IV ) is observed on irradiation with 436 nm light, while no such behavior is observed for the Nb IV analogue. A photomagnetic response based solely on [W IV (CN) 8 ] 4− is demonstrated for the first time. The observed behavior is attributed to the light‐induced excited spin state trapping (LIESST) effect at the octacyanidometalate, and to the resulting magnetic exchange ON/OFF photoswitching between the Mn II center and the photoinduced high‐spin ( S =1) W IV or Mo IV centers.

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