Amino-modified periodic mesoporous biphenylene-silica
authors Lourenco, MAO; Mayoral, A; Diaz, I; Silva, AR; Ferreira, P
nationality International
journal MICROPOROUS AND MESOPOROUS MATERIALS
author keywords Catalysis; PMO; Biphenylene; Knoevenagel condensation reaction; Amine
keywords METAL-ORGANIC FRAMEWORK; CHANNEL WALLS; ORGANOSILICAS; CATALYST
abstract The amination reaction of biphenylene moieties in crystal-like mesoporous silica (Bph-PMO) is successfully achieved with a density of 3.17 mmol g(-1). The amination occurs approximately in every aromatic ring of the biphenylene bridge in the position 2 and 2', leading to above 50% of the biphenylene group di-aminated. The structural integrity of the synthetized material is preserved during the strong acid treatment to achieve the amine funcionalization of Bph-PMO. The aminated mesoporous organosilica is highly active (initial turnover frequency 2193 h(-1) or 37 min(-1)) and almost 100% selective in the Knoevenagel condensation. Moreover, the amine-modified periodic mesoporous biphenylene-silica is effective for direct metal coordination. (C) 2015 Elsevier Inc. All rights reserved.
publisher ELSEVIER SCIENCE BV
issn 1387-1811
year published 2015
volume 217
beginning page 167
ending page 172
digital object identifier (doi) 10.1016/j.micromeso.2015.06.026
web of science category Chemistry, Applied; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary
subject category Chemistry; Science & Technology - Other Topics; Materials Science
unique article identifier WOS:000360596100022
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journal impact factor 3.649
5 year journal impact factor 3.538
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