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Water‐ and Temperature‐Triggered Reversible Structural Transformation of Tetranuclear Cobalt(II) Cores Sandwiched by Polyoxometalates
Author(s) -
Kuriyama Yosuke,
Kikukawa Yuji,
Suzuki Kosuke,
Yamaguchi Kazuya,
Mizuno Noritaka
Publication year - 2016
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201600139
Subject(s) - dissociation (chemistry) , cobalt , thermochromism , cubane , metal , dehydration , crystallography , chemistry , planar , materials science , inorganic chemistry , crystal structure , organic chemistry , biochemistry , computer graphics (images) , computer science
Although stimuli‐responsive structural transformations of inorganic materials have attracted considerable attention because of their potential use as functional switchable materials, multinuclear metal cores frequently suffer from unexpected dissociation of metal cations and/or irreversible transformations into infinite structures. In this study, we describe the successful demonstration of the water‐ and temperature‐triggered reversible structural transformation between cubane‐ and planar‐type tetranuclear Co II cores sandwiched by polyoxometalates. The arrangements and coordination geometries of the Co II cations were interconverted by simple hydration and dehydration, resulting in the manipulation of the magnetic and optical properties of these compounds. Moreover, this system showed unique thermochromism through temperature‐dependent reversible structural interconversion.