Tetradihydrobenzoquinonate and Tetrachloranilate Zr(IV) Complexes: Single-Crystal-to-Single-Crystal Phase Transition and Open-Framework Behavior for K4Zr(DBQ)4.
IMAZ, Inhar
Centre d'Investigació en Nanociència i Nanotecnologia [ICN-CSIC]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
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Centre d'Investigació en Nanociència i Nanotecnologia [ICN-CSIC]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
IMAZ, Inhar
Centre d'Investigació en Nanociència i Nanotecnologia [ICN-CSIC]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Centre d'Investigació en Nanociència i Nanotecnologia [ICN-CSIC]
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
SUTTER, Jean-Pascal
Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de chimie de coordination [LCC]
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Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB]
Laboratoire de chimie de coordination [LCC]
Langue
en
Article de revue
Ce document a été publié dans
Inorganic Chemistry. 2013-10-07, vol. 52, n° 19, p. 11237-11243
American Chemical Society
Résumé en anglais
: The molecular complexes K4[Zr(DBQ)4] and K4[Zr(CA)4], where DBQ(2-) and CA(2-) stand respectively for deprotonated dihydroxybenzoquinone and chloranilic acid, are reported. The anionic metal complexes consist of Zr(IV) ...Lire la suite >
: The molecular complexes K4[Zr(DBQ)4] and K4[Zr(CA)4], where DBQ(2-) and CA(2-) stand respectively for deprotonated dihydroxybenzoquinone and chloranilic acid, are reported. The anionic metal complexes consist of Zr(IV) surrounded by four O,O-chelating ligands. Besides the preparation and crystal structures for the two complexes, we show that in the solid state the DBQ complex forms a 3-D open framework (with 22% accessible volume) that undergoes a crystal-to-crystal phase transition to a compact structure upon guest molecule release. This process is reversible. In the presence of H2O, CO2, and other small molecules, the framework opens and accommodates guest molecules. CO2 adsorption isotherms show that the framework breathing occurs only when a slight gas pressure is applied. Crystal structures for both the hydrated and guest free phases of K4[Zr(DBQ)4] have been investigated.< Réduire
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