Resource data
Porphyrinosilica and metalloporphyrinosilica: hybrid organic-inorganic materials prepared by sol-gel processing
IAMAMOTO,YASSUKO SACCO,HÉRICA C. BIAZZOTTO,JULIANA C. CIUFFI,KATIA J. SERRA,OSVALDO A.
Location:
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652000000100008
New materials porphyrinosilica and metalloporphyrinosilica template have been obtained by a sol-gel processing where functionalyzed porphyrins and metalloporphyrins "building blocks" were assembled into a three-dimensional silicate network. The optimized conditions for preparation of these materials are revised. The monomer precursors porphyrinopropylsilyl and metalloporphyrinopropylsilyl preparation reactions and subsequent one pot sol-gel processing with tetraethoxysilane are discussed. In the case of metalloporphyrins the nitrogen base coordinates to the central metal and acts as a template in the molecular imprinting technique. UV-visible absorption spectroscopy, thermogravimetric analysis, electron paramagnetic resonance, nuclear magnetic spectra, infrared spectra, luminescence spectra, surface area and electron spectroscopy imaging of the materials are used to characterize the prepared materials. The catalytic activities of these metalloporphyrinosilica- template are compared.
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Detalles del recurso
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Porphyrinosilica and metalloporphyrinosilica: hybrid organic-inorganic materials prepared by sol-gel processing
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| Id. |
234197 |
| Idioma |
inglés
|
| Titulo |
Porphyrinosilica and metalloporphyrinosilica: hybrid organic-inorganic materials prepared by sol-gel processing |
| Autor(es) |
IAMAMOTO,YASSUKO SACCO,HÉRICA C. BIAZZOTTO,JULIANA C. CIUFFI,KATIA J. SERRA,OSVALDO A. |
| Location |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652000000100008
|
| Versión |
1.0 |
| Estado |
Final
|
| Descripción |
New materials porphyrinosilica and metalloporphyrinosilica template have been obtained by a sol-gel processing where functionalyzed porphyrins and metalloporphyrins "building blocks" were assembled into a three-dimensional silicate network. The optimized conditions for preparation of these materials are revised. The monomer precursors porphyrinopropylsilyl and metalloporphyrinopropylsilyl preparation reactions and subsequent one pot sol-gel processing with tetraethoxysilane are discussed. In the case of metalloporphyrins the nitrogen base coordinates to the central metal and acts as a template in the molecular imprinting technique. UV-visible absorption spectroscopy, thermogravimetric analysis, electron paramagnetic resonance, nuclear magnetic spectra, infrared spectra, luminescence spectra, surface area and electron spectroscopy imaging of the materials are used to characterize the prepared materials. The catalytic activities of these metalloporphyrinosilica- template are compared. |
| Tipo |
text/html |
| Palabras clave |
metalloporphyrin silica |
| Tipo de recurso |
journal article
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| Tipo de Interactividad |
Expositivo
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| Nivel de Interactividad |
muy bajo
|
| Audiencia |
Estudiante
Profesor
Autor
|
| Estructura |
Atomic |
| Coste |
no
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| Copyright |
sí
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| Formatos |
text/html |
| Requerimientos técnicos |
Browser: Any |
| Fecha de contribución |
22-may-2005 |
| Contacto |
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