A Lamellar Coordination Polymer with Remarkable Catalytic Activity
authors Mendes, RF; Antunes, MM; Silva, P; Barbosa, P; Figueiredo, F; Linden, A; Rocha, J; Valente, AA; Paz, FAA
nationality International
journal CHEMISTRY-A EUROPEAN JOURNAL
author keywords conducting materials; heterogeneous catalysis; layered materials; lanthanides; metal-organic frameworks
keywords METAL-ORGANIC FRAMEWORKS; ONE-POT ACETALIZATION; EFFICIENT ACETALIZATION; HETEROGENEOUS CATALYSTS; PROTON CONDUCTIVITY; LINKER SUBSTITUTION; MAGNETIC-PROPERTIES; DIMETHYL ACETALS; LEWIS ACIDITY; Y ZEOLITES
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.
publisher WILEY-V C H VERLAG GMBH
issn 0947-6539
year published 2016
volume 22
issue 37
beginning page 13136
ending page 13146
digital object identifier (doi) 10.1002/chem.201602157
web of science category Chemistry, Multidisciplinary
subject category Chemistry
unique article identifier WOS:000383763200028
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journal impact factor (jcr 2016): 5.317
5 year journal impact factor (jcr 2016): 5.184
category normalized journal impact factor percentile (jcr 2016): 82.831
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