Please use this identifier to cite or link to this item: http://hdl.handle.net/10773/19920
Title: A Lamellar Coordination Polymer with Remarkable Catalytic Activity
Author: Mendes, Ricardo F.
Antunes, Margarida M.
Silva, Patricia
Barbosa, Paula
Figueiredo, Filipe
Linden, Anthony
Rocha, Joao
Valente, Anabela A.
Almeida Paz, Filipe A.
Keywords: METAL-ORGANIC FRAMEWORKS
ONE-POT ACETALIZATION
EFFICIENT ACETALIZATION
HETEROGENEOUS CATALYSTS
PROTON CONDUCTIVITY
LINKER SUBSTITUTION
MAGNETIC-PROPERTIES
DIMETHYL ACETALS
LEWIS ACIDITY
Y ZEOLITES
Issue Date: 2016
Publisher: WILEY-V C H VERLAG GMBH
Abstract: A positively charged lamellar coordination polymer based on a flexible triphosphonic acid linker is reported. [Gd(H(4)nmp)(H2O)(2)]Cl center dot 2H(2)O (1) [H(6)nmp=nitrilotris(methylene-phosphonic acid)] was obtained by a one-pot approach by using water as a green solvent and by forcing the inclusion of additional acid sites by employing HCl in the synthesis. Compound 1 acts as a versatile heterogeneous acid catalyst with outstanding activity in organic reactions such as alcoholysis of styrene oxide, acetalization of benzaldehyde and cyclohexanaldehyde and ketalization of cyclohexanone. For all reaction systems, very high conversions were reached (92-97%) in only 15-30 min under mild conditions (35 degrees C, atmospheric pressure). The coordination polymer exhibits a protonic conductivity of 1.23 x 10(-5) Scm(-1) at 98% relative humidity and 40 degrees C.
Peer review: yes
URI: http://hdl.handle.net/10773/19920
DOI: 10.1002/chem.201602157
ISSN: 0947-6539
Publisher Version: 10.1002/chem.201602157
Appears in Collections:CICECO - Artigos

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