Photoinduced magnetization with a high curie temperature and a large coercive field in a cyano-bridged cobalt-tungstate bimetallic assembly

Journal of the American Chemical Society
Shin-ichi OhkoshiKazuhito Hashimoto

Abstract

A three-dimensional magnetic material [{CoII(pyrimidine)(H2O)}2{CoII(H2O)2}{WV(CN)8}2](pyrimidine)2. 2H2O is prepared. This compound exhibits a charge-transfer-induced spin transition with a large thermal hysteresis loop of 90 K. Irradiating with light causes the low-temperature phase to exhibit a spontaneous magnetization with a Curie temperature of 40 K and a magnetic hysteresis loop with a coercive field of 12 000 G, which is the highest value reported for a photomagnet. The observed photoinduced magnetization is due to the charge-transfer phase transition from the {CoIIhs(S = 3/2)}{CoIIIls(S = 0)}2-NC-{WIV(S = 0)}2 phase to the {CoIIhs(S = 3/2)}3-NC-{WV(S = 1/2)}2 phase by the irradiation.

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Citations

Aug 8, 2012·Accounts of Chemical Research·Shin-ichi Ohkoshi, Hiroko Tokoro
Aug 31, 2013·Inorganic Chemistry·Nada DiaTalal Mallah
Jun 24, 2010·Nature Chemistry·Shin-Ichi OhkoshiHiroko Tokoro
Jan 19, 2011·Chemical Communications : Chem Comm·Florence VolatronTalal Mallah
Jan 1, 2008·Acta Crystallographica. Section E, Structure Reports Online·Souhei KanekoShin-Ichi Ohkoshi
Jan 1, 2010·Acta Crystallographica. Section E, Structure Reports Online·Kenta ImotoShin-Ichi Ohkoshi
Oct 28, 2015·Chemical Reviews·Eugeny V AlexandrovEugenia V Peresypkina
Jan 11, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Hitoshi Miyasaka, Masahiro Yamashita
Oct 1, 2009·Journal of the American Chemical Society·Tarik MahfoudAzzedine Bousseksou
Nov 25, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Y MiyamotoS Ohkoshi
Jun 16, 2015·Dalton Transactions : an International Journal of Inorganic Chemistry·Liang ZhaoTao Liu
Mar 10, 2007·Angewandte Chemie·Osamu SatoYuan-Zhu Zhang
Jun 27, 2009·Chemistry : a European Journal·Ying WangXiao-Zeng You
Sep 18, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Catalin MaximMarius Andruh
Oct 28, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Daopeng ZhangJianzhuang Jiang
Mar 25, 2010·Dalton Transactions : an International Journal of Inorganic Chemistry·Jun WangXiao-Zeng You
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Aug 7, 2008·Angewandte Chemie·Michio AraiShin-Ichi Ohkoshi
Feb 8, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Wen ZhangOsamu Sato
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May 8, 2019·Dalton Transactions : an International Journal of Inorganic Chemistry·Jun QianChi Zhang
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Apr 14, 2009·Inorganic Chemistry·Laure CatalaTalal Mallah
Apr 14, 2009·Inorganic Chemistry·Anne BleuzenMichel Verdaguer

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