کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1485277 1510537 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Luminescent porphyrinosilica obtained by the sol-gel method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Luminescent porphyrinosilica obtained by the sol-gel method
چکیده انگلیسی
Hybrid materials consisting of a substituted porphyrinic macrocycle covalently bonded to a porous silica matrix have been prepared. The organic macrocycle 5,10,15,20-tetra-(p-hydroxy)phenylporphyrin, H2T(p-OH)PP, has been covalently bonded to silica gel porous networks, obtained by sol-gel reactions, by means of 3-isocyanatopropyl-triethoxysilane (IPTES), whose molecules act as bridges between the silica precursor tetraethoxysilane (TEOS) and the porphyrinic H2T(p-OH)PP macrocycles. Electronic absorption spectra show Soret and Q bands characteristic of trapped porphyrins inside the silica networks. Infrared spectroscopy monitoring has been employed to demonstrate the formation of covalent bonds between some substituents of the porphyrin molecules and the isocyanato group of IPTES.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 353, Issues 22–23, 1 July 2007, Pages 2143-2149
نویسندگان
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