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