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Materials surgery – Reactivity differences of organic groups in hybrids

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Materials surgery – Reactivity differences of organic groups in hybrids

Type of Publication: Journal article
Author: Polarz, Sebastian; Jeremias, Felix; Haunz, Ulrich
Year of publication: 2011
Published in: Advanced Functional Materials ; 21 (2011), 15. - pp. 2953-2959. - ISSN 1616-301X
DOI (citable link): https://dx.doi.org/10.1002/adfm.201100802
Summary:
Synergistic properties in hybrid materials can emerge if the inorganic matrix has an electronic influence on the organic constituents and vice versa. This paper describes the drastic effect of SiO2 in periodically ordered mesoporous organosilica materials (PMOs) on ethylene groups. A sophisticated, in situ solid-state NMR spectroscopy study showed that the ozonolysis of ethylene groups follows an entirely different mechanism than is normal for organic, molecular groups. Ultimately, this leads to the topotactic transformation of the PMO material. Only if silicon is not in the alpha position to the double bond does it became possible to establish a new method to functionalize PMOs materials: the targeted scission of the ethylene group and the creation of functionalized pockets inside the pore walls of the mesoporous solid.
Subject (DDC): 540 Chemistry
Keywords: mesoporous materials, organic–inorganic hybrids, ozonolysis, nanochemistry, in situ analysis
Bibliography of Konstanz: Yes

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POLARZ, Sebastian, Felix JEREMIAS, Ulrich HAUNZ, 2011. Materials surgery – Reactivity differences of organic groups in hybrids. In: Advanced Functional Materials. 21(15), pp. 2953-2959. ISSN 1616-301X. Available under: doi: 10.1002/adfm.201100802

@article{Polarz2011Mater-19728, title={Materials surgery – Reactivity differences of organic groups in hybrids}, year={2011}, doi={10.1002/adfm.201100802}, number={15}, volume={21}, issn={1616-301X}, journal={Advanced Functional Materials}, pages={2953--2959}, author={Polarz, Sebastian and Jeremias, Felix and Haunz, Ulrich} }

Publ. in: Advanced functional materials ; 21 (2011), 15. - S. 2953-2959 2012-07-11T08:55:29Z terms-of-use Haunz, Ulrich eng Jeremias, Felix Jeremias, Felix 2012-07-11T08:55:29Z Synergistic properties in hybrid materials can emerge if the inorganic matrix has an electronic influence on the organic constituents and vice versa. This paper describes the drastic effect of SiO<sub>2</sub> in periodically ordered mesoporous organosilica materials (PMOs) on ethylene groups. A sophisticated, in situ solid-state NMR spectroscopy study showed that the ozonolysis of ethylene groups follows an entirely different mechanism than is normal for organic, molecular groups. Ultimately, this leads to the topotactic transformation of the PMO material. Only if silicon is not in the alpha position to the double bond does it became possible to establish a new method to functionalize PMOs materials: the targeted scission of the ethylene group and the creation of functionalized pockets inside the pore walls of the mesoporous solid. Polarz, Sebastian 2011 Haunz, Ulrich Materials surgery – Reactivity differences of organic groups in hybrids Polarz, Sebastian

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