Mesoporous hybrids

Fluorescent mesoporous hybrid materials based on GFP adsorbed into SBA-15... 

Soler-Illia, G. Innocenzi, P. 2006. Mesoporous hybrid thin films The physics and chemistry beneath. Chem.—Eur. J. 12 4478 1494. 

M. Bonnet, L. Schmid, A. Baiker and F. Diederich, A New Mesoporous Hybrid Material Porphyrin-Doped Aerogel as a Catalyst for the Epoxidation of Olefins, Adv. Fund. Mater., 2002, 12, 39. 

Comes M, Aznar E, Moragues M et al (2009) Mesoporous hybrid materials containing nanoscopic binding pockets for colorimetric anion signaling in water by using displacement assays. Chem Eur J 15 9024—9033... 

In this research study an ordered, mesoporous hybrid organosilica material incorporating a biphei rl moiety was fabricated. The polymerization process was surfactant-mediated to ensure uniform pore pattern and narrow pore size distribution. The synthesis of the organosilica precursor was done and investigated by the research group of the Inorganic Synthesis and Computational Research Laboratory of Institute of Chemistry, Diliman, Quezon City. 

It is evident that a completely consistent classification of organic-inorganic mesoporous hybrid materials based on silica is hard to deduce. Before we proceed, some (hopefully) clarifying remarks on this issue will be made. 

Since the discovery of this first benzene-bridged mesoporous hybrid material with crystal-like pore walls, the series of organosilica precursors that give PMOs exhibiting molecular-scale periodicity was considerably extended. Kapoor et al. demonstrated with the formation of PMO products from the precursor 1,3 -bis(triethox-ysilyl)benzene (10) that a crystal-like organization of the organic bridges within the pore walls is not restricted to linear-substituted precursors.264... 

Figure 3.23 Photographs of powders of mesoporous hybrid materials with various conjugated ir-electron systems (from left to right) ethene-, benzene-, 1,4-divinylbenzene-, 4,4 -divinylstilbene-, and 4,4 -divinylazobenzene-bridged organosilicas. (See color insert.)...

Depending on the procedure, materials with different shapes can be obtained but xerogels are generally obtained as powders since, either at the syneresis or at the drying step, fragmentation of the gel is not prevented. In the following part we describe attempts to control the shape of the material at the macroscopic level (formation of films or monoliths) or at the mesoscopic level (formation of mesoporous hybrid xerogels). 

There is certainly still much work to do in order to understand and predict the behaviour of such sophisticated [precursor/water/surfactant /catalyst] systems. However, it must be pointed out that they represent one of the most attractive and interesting developments for hybrid material chemistry. Moreover, one may expect that it will be possible to modulate the structure of the mesoporous hybrid, having different functions located at either the surface of the pore or inside the framework of the walls. 

CHIRAL MESOPOROUS HYBRID ORGANIC-INORGANIC MATERIALS IN ENANTIOSELECTIVE CATALYSIS... 

Chiral Mesoporous Hybrid Organic-Inorganic Materials in Enantioselective Catalysis... 

Direct synthesis of Mesoporous Hybrid Organic-Inorganic Silica Powders and Thin Films for Potential Non Linear Optic Applications... 

We now describe the synthesis of a mesoporous hybrid material containing silylated azobenzenediethylphosphonate ligand located in the channel pores, by hydrolytic polycondensation of the compound 1 (Scheme 1) in the presence... 

Direct synthesis of Mesoporous Hybrid Organic-Inorganic Silica Powders... 

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