Post-Synthesis Modification of the Aurivillius Phase Bi2SrTa2O9via In Situ Microwave-Assisted "Click Reaction".
A new strategy for the functionalization of layered perovskites is presented, based on the in situ post-synthesis modification of a prefunctionalized phase by copper(I)-catalyzed alkyne-azide cycloaddition (CuAAC). The microwave-assisted protonation and grafting of an alkyne alcohol provides the alkyne-functionalized precursor within a few hours, starting from Bi2SrTa2O9. The subsequent microwave-assisted in situ "click reaction" allows the post-synthesis modification of the precursor within ∼2 h, providing a layered perovskite functionalized by an alcohol-grafted 1,4-disubstituted-1H-1,2,3-triazole. Two compounds are described here, bearing an aliphatic and an aromatic substituent, which illustrates the general application of the method. This work opens new perspectives for the functionalization of layered perovskites, going beyond mere insertion/grafting reactions, and thus broadens the design possibilities and the range of applications of these hybrid systems.
Institut de Physique et Chimie des Matériaux de Strasbourg and Labex NIE, University of Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
Yanhui
Y
Wang
Institut de Physique et Chimie des Matériaux de Strasbourg and Labex NIE, University of Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
Emilie
E
Delahaye
Institut de Physique et Chimie des Matériaux de Strasbourg and Labex NIE, University of Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
Cédric
C
Leuvrey
Institut de Chimie de Clermont-Ferrand, CNRS UMR 6296, UFR Sciences et Technologies, Equipe Matériaux Inorganiques, 24 avenue des Landais, BP 80026, 63171 Aubière cedex, France.
Fabrice
F
Leroux
Institut de Physique et Chimie des Matériaux de Strasbourg and Labex NIE, University of Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
Pierre
P
Rabu
Institut de Physique et Chimie des Matériaux de Strasbourg and Labex NIE, University of Strasbourg, CNRS UMR 7504 , 23 rue du Loess, BP 43, 67034 Strasbourg cedex 2, France.
Guillaume
G
Rogez