Details
| Original language | English |
|---|---|
| Pages (from-to) | 2587-2592 |
| Number of pages | 6 |
| Journal | Journal of Materials Chemistry |
| Volume | 18 |
| Issue number | 22 |
| Publication status | Published - 18 Apr 2008 |
Abstract
The first systematic investigations on the optical properties of mesoporous silica-based organic-inorganic hybrid materials is reported. It could be shown that the optical absorption properties of the incorporated organic functionalities are tuneable by adjusting the length of the conjugation of the π-electron systems or by integration of heteroatoms therein. For this purpose, two new bis-silylated compounds with 18 π-electron systems, namely 4,4′-bis((E)-2-(triethoxysilyl)vinyl)stilbene and 1,2-bis(4-((E)-2- (triethoxysilyl)vinyl)phenyl)diazene and their related mesoporous hybrid materials, were synthesised. On the basis of solid state UV-vis absorption spectra it is demonstrated that for highly conjugated and elongated organic bridges the absorption maximum reaches the visible region resulting in a yellow powder for a pure hydrocarbon backbone and a deep red powder for an azobenzene containing material.
ASJC Scopus subject areas
- Chemistry(all)
- Materials Science(all)
- Materials Chemistry
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In: Journal of Materials Chemistry, Vol. 18, No. 22, 18.04.2008, p. 2587-2592.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Systematic extension of the length of the organic conjugated π-system of mesoporous silica-based organic-inorganic hybrid materials
AU - Cornelius, Maximilian
AU - Hoffmann, Frank
AU - Ufer, Boris
AU - Behrens, Peter
AU - Fröba, Michael
PY - 2008/4/18
Y1 - 2008/4/18
N2 - The first systematic investigations on the optical properties of mesoporous silica-based organic-inorganic hybrid materials is reported. It could be shown that the optical absorption properties of the incorporated organic functionalities are tuneable by adjusting the length of the conjugation of the π-electron systems or by integration of heteroatoms therein. For this purpose, two new bis-silylated compounds with 18 π-electron systems, namely 4,4′-bis((E)-2-(triethoxysilyl)vinyl)stilbene and 1,2-bis(4-((E)-2- (triethoxysilyl)vinyl)phenyl)diazene and their related mesoporous hybrid materials, were synthesised. On the basis of solid state UV-vis absorption spectra it is demonstrated that for highly conjugated and elongated organic bridges the absorption maximum reaches the visible region resulting in a yellow powder for a pure hydrocarbon backbone and a deep red powder for an azobenzene containing material.
AB - The first systematic investigations on the optical properties of mesoporous silica-based organic-inorganic hybrid materials is reported. It could be shown that the optical absorption properties of the incorporated organic functionalities are tuneable by adjusting the length of the conjugation of the π-electron systems or by integration of heteroatoms therein. For this purpose, two new bis-silylated compounds with 18 π-electron systems, namely 4,4′-bis((E)-2-(triethoxysilyl)vinyl)stilbene and 1,2-bis(4-((E)-2- (triethoxysilyl)vinyl)phenyl)diazene and their related mesoporous hybrid materials, were synthesised. On the basis of solid state UV-vis absorption spectra it is demonstrated that for highly conjugated and elongated organic bridges the absorption maximum reaches the visible region resulting in a yellow powder for a pure hydrocarbon backbone and a deep red powder for an azobenzene containing material.
UR - http://www.scopus.com/inward/record.url?scp=44149094792&partnerID=8YFLogxK
U2 - 10.1039/b801034j
DO - 10.1039/b801034j
M3 - Article
AN - SCOPUS:44149094792
VL - 18
SP - 2587
EP - 2592
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
SN - 0959-9428
IS - 22
ER -