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Large Lattice Responses in a Mixed‐Valence Prussian Blue Analogue Owing to Electronic and Spin Transitions Induced by X‐ray Irradiation
Author(s) -
Margadonna Serena,
Prassides Kosmas,
Fitch Andrew N.
Publication year - 2004
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200460603
Subject(s) - prussian blue , valence (chemistry) , chemistry , cyanide , irradiation , phase diagram , spin crossover , x ray crystallography , x ray , lattice (music) , crystallography , materials science , phase (matter) , diffraction , inorganic chemistry , optics , electrochemistry , physics , organic chemistry , electrode , nuclear physics , acoustics
Illuminating phase changes : Absorption of X‐ray photons induces reversible internal charge‐transfer processes in the mixed‐valence Mn/Fe cyanide Rb 0.7 Mn II 1.15 [Fe III (CN) 6 ]⋅2 H 2 O over a broad temperature range. Both continuous and abrupt phase transformations can be triggered (see scheme; HS=high spin, LS=low spin) and because the X‐rays simultaneously probe the structural properties of the material, the resulting phase diagram can be elucidated in detail.