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[Co 2 (ppca) 2 (H 2 O)(V 4 O 12 ) 0.5 ]: A Framework Material Exhibiting Reversible Shrinkage and Expansion through a Single‐Crystal‐to‐Single‐Crystal Transformation Involving a Change in the Cobalt Coordination Environment
Author(s) -
Chen ChunLong,
Goforth Andrea M.,
Smith Mark D.,
Su ChengYong,
zur Loye HansConrad
Publication year - 2005
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.200502309
Subject(s) - shrinkage , molecule , pyridine , ligand (biochemistry) , chemistry , crystallography , materials science , medicinal chemistry , organic chemistry , biochemistry , receptor , composite material
Shrinkage factor : The ligand ppca (4‐(pyridin‐4‐yl)pyridine‐2‐carboxylic acid) has enabled the synthesis of a new 3D framework material, [{[Co 2 (ppca) 2 (H 2 O)(V 4 O 12 ) 0.5 ]⋅3.62 H 2 O} n ], which exhibits so‐called “dynamic structural changes”. Temperature changes lead to the reversible removal of guest molecules and/or ligands (e.g. H 2 O) bound to the framework with a concomitant reversible structure change (see scheme).