کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9757020 | 1495290 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopic study on the photophysical properties of novel lanthanide complexes with long chain mono-L phthalate (LÂ =Â hexadecyl, octadecyl and eicosyl)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Spectroscopic study on the photophysical properties of novel lanthanide complexes with long chain mono-L phthalate (LÂ =Â hexadecyl, octadecyl and eicosyl) Spectroscopic study on the photophysical properties of novel lanthanide complexes with long chain mono-L phthalate (LÂ =Â hexadecyl, octadecyl and eicosyl)](/preview/png/9757020.png)
چکیده انگلیسی
Ortho-phthalic anhydride was modified with long chain alcohol (1-hexadecanol, 1-octadecanol and 1-eicosanol) to their corresponding mono-L phthalate (LÂ =Â hexadecyl, octadecyl and eicosyl), i.e. monohexadecyl phthalate (16-Phth), monooctadecyl phthalate (18-Phth), and monoeicosyl phthalate (20-Phth), respectively. Nine novel lanthanide (Eu3+, Tb3+ and Dy3+) complexes with these three mono-L phthalate ligands were synthesized and characterized by elemental analysis and IR spectra. The photophysical properties of these complexes were studied in detail with various spectroscopes such as ultraviolet-visible absorption spectra, low temperature phosphorescence spectra and fluorescent spectra. The ultraviolet-visible absorption spectra show some band shifts with the different chain-length of phthalate monoester and homologous lanthanide complexes. From the low temperature phosphorescent emission, the triplet state energies for these three ligands were determined to be around 22,650Â cmâ1 (16-Phth), 23,095Â cmâ1 (18-Phth) and 22,400Â cmâ1 (20-Phth), respectively, suggesting they are suitable for the sensitization of the luminescence of Eu3+, Tb3+ and Dy3+. The fluorescence excitation and emission spectra for these lanthanides complexes of the three ligands take agreement with the above predict from energy match.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 62, Issues 1â3, November 2005, Pages 269-275
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 62, Issues 1â3, November 2005, Pages 269-275
نویسندگان
Bing Yan, Bing Xu,