کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1308758 975180 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Imidazole–imidazole stacking in some inorganic complexes
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Imidazole–imidazole stacking in some inorganic complexes
چکیده انگلیسی

Reaction of CuCl2 · 2H2O with the 1:1 condensate (L) of 2-(2-aminoethyl)pyridine and 1-methyl-2-imidazolecarboxaldehyde in methanol yields monomeric CuLCl2.H2O (1). Recrystallisation of 1 from aqueous methanol medium containing excess of PF6− affords the 1D coordination polymer [CuLCl]n(PF6)n (2). A chloride bridge results in the coordination polymer. A face-to-face interaction is observed between the imidazole rings in 2. The interaction influences the structure and magnetic properties of 2 markedly. The complex 2 is ferromagnetic with a J value of 1.79 ± 0.01 cm−1. The imidazole fragments in 2 are coordinated to the metal. In mononuclear [HgL2″](ClO4)2, where L′′ is the 1:2 condensate of ethylenediamine and 1-methyl-2-imidazolecarboxaldehyde, the imidazolyl moieties are not under the direct influence of the metal. Here the imidazole–imidazole interaction is angular and more distant.

The shown near face-to-face stacking interaction occurs between two 1-methylimidazole moieties when bound to copper(II). It becomes angular and more distant when the two moieties are not under the direct influence of a metal ion.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Inorganica Chimica Acta - Volume 362, Issue 8, 1 June 2009, Pages 2879–2883
نویسندگان
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