کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1625128 1516425 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Unravelling self-assembly of lanthanide helicates: Switching from deduction to induction
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Unravelling self-assembly of lanthanide helicates: Switching from deduction to induction
چکیده انگلیسی

Classical supramolecular approach involving thermodynamic and kinetic characterisation is discussed for polymetallic lanthanide complexes with neutral ligands. These experimental studies allow (i) to obtain the stability constants of the self-assembled species and (ii) to establish the formation mechanism. Consequently, the analysis of these data with thermodynamic models promotes a deeper rationalization of self-assembly. The quantitative energetic parametrization of inter- and intra-molecular processes together with intermetallic and interligand interactions is obtained for europium(III) complexes of similar structure. To confirm the predictive ability of this thermodynamic modelling, the stability constant of the homologous tetrametallic helicate [Eu4(L4)3]12+ has been computed. An excellent agreement between the predicted and the experimental value of β4,3Eu,L4 demonstrates the power of this innovative approach for supramolecular programming.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 451, Issues 1–2, 28 February 2008, Pages 347–351
نویسندگان
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