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Bidirectional Chemo‐Switching of Spin State in a Microporous Framework
Authors:Masaaki Ohba Dr.  Ko Yoneda  Gloria Agustí  M. Carmen Muñoz Prof. Dr.  Ana B. Gaspar Dr.  José A. Real Prof. Dr.  Mikio Yamasaki Dr.  Hideo Ando  Yoshihide Nakao Dr.  Shigeyoshi Sakaki Prof. Dr.  Susumu Kitagawa Prof. Dr.
Affiliation:1. Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo‐ku, Kyoto 615‐8510 (Japan), Fax: (+81)?75‐383‐2732;2. RIKEN Spring‐8 Center, Kouto, Sayo‐cho, Sayo‐gun, Hyogo 679‐5198 (Japan);3. Institut de Ciència Molecular, ICMOL/Departament de Química Inorgánica, Universitat de València, Edifici d'Instituts de Paterna, Apartat de correus 22085, 46071 València (Spain);4. Departament de Física Aplicada, Universitat Politècnica de València, Camí de Vera s/n, 46022 València (Spain);5. Rigaku Corporation, Matsubaracho, Akishima, Tokyo 196‐8666 (Japan);6. Department of Molecular Engineering, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo‐ku, Kyoto 615‐8510 (Japan);7. Institute for Integrated Cell‐Material Sciences (iCeMS), Kyoto University, Konoe‐cho, Yoshida, Sakyo‐ku, Kyoto 606‐8501 (Japan)
Abstract:The ins and outs of spin : Using the microporous coordination polymer {Fe(pz)[Pt(CN)4]} ( 1 , pz=pyrazine), incorporating spin‐crossover subunits, two‐directional magnetic chemo‐switching is achieved at room temperature. In situ magnetic measurements following guest vapor injection show that most guest molecules transform 1 from the low‐spin (LS) state to the high‐spin (HS) state, whereas CS2 uniquely causes the reverse HS‐to‐LS transition.
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Keywords:chemo‐switching  coordination polymers  metal–  organic frameworks  microporous materials  spin crossover
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