کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
28193 44064 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structure and photophysical properties of new lanthanide(III) complexes [Ln(C10H8O6)1.5(H2O)3]·H2O
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله
Structure and photophysical properties of new lanthanide(III) complexes [Ln(C10H8O6)1.5(H2O)3]·H2O
چکیده انگلیسی

A serie of lanthanide complexes with o-phenylenedioxydiacetic acid (PDDA) was synthesized and the crystal structure was resolved. The compounds [Ln(C10H8O6)1.5(H2O)3]·H2O (where Ln = Tb(III), Gd(III) and Eu(III)), crystallize as polymer with the space group Pbcn and a = 34.075(2) Å, b = 12.595(1) Å, c = 8.314(1) Å. Absorption, emission, and excitation spectra at 293 K, 77 K and 4 K as well as luminescence decay time measurements were used to characterize the dynamics of the excited states and to determine the ligand-to-metal energy transfer mechanism for the complexes in solid state and solution. The role of the C–T state in these processes has been analysed. The results are compared with those achieved for a Na[Eu(C10H8O6)2(H2O)2]·4H2O complex and a Eu(III) complex with PDDA in aqueous solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 202, Issue 1, 5 February 2009, Pages 1–9
نویسندگان
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