کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5403053 1392750 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Three green luminescent cadmium complexes containing 8-aminoquinoline ligands: Syntheses, crystal structures, emission spectra and DFT calculations
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Three green luminescent cadmium complexes containing 8-aminoquinoline ligands: Syntheses, crystal structures, emission spectra and DFT calculations
چکیده انگلیسی
Three complexes, Cd(8-aminoql)2×2 (8-aminoql=8-aminoquinoline; X−=ClO4−, SCN−, 1 and 2, respectively) and Cd(8-aminoql)(N3)2 (3), were synthesized and structurally characterized. For each complex, the Cd2+ ion exhibits distorted octahedral coordination geometry. Two 8-aminoquinoline molecules and two counter-anions are coordinated to the Cd2+ center to form a mononuclear species with two trans-ClO4− anions for 1, while two SCN− anions adopt a cis-configuration for 2. The intermolecular H-bonding interactions between the -NH2 groups and the O atom (1) and the S atom (2) result in the formation of a 2-D layered structure. In the crystal of 3, the N3− anions bridging the neighboring Cd(8-aminoql)2+ units form a 1-D coordination polymer. The three complexes emit green luminescence. The emission bands possess a broad asymmetric feature, which can be assigned to L′LCT transitions based on DFT and TDDFT calculations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Luminescence - Volume 128, Issue 10, October 2008, Pages 1665-1672
نویسندگان
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