کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9770261 1501943 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Syntheses, crystal structures and characterizations of new zinc (II) and lead (II) carboxylate-phosphonates
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Syntheses, crystal structures and characterizations of new zinc (II) and lead (II) carboxylate-phosphonates
چکیده انگلیسی
The syntheses, crystal structures and characterizations of two new divalent metal carboxylate-phosphonates, namely, Zn(H3L)·2H2O (1) and Pb(H3L)(H2O)2 (2) (H5L4-HO2C-C6H4-CH2N(CH2PO3H2)2) have been reported. Compound 1 features a 1D column structure in which the Zn(II) ions are tetrahedrally coordinated by four phosphonate oxygen atoms from four phosphonate ligands, and neighboring such 1D building blocks are further interconnected via hydrogen bonds into a 3D network. The carboxylate group of H3L anion remains non-coordinated. Compound 2 has a 2D layer structure. Pb(II) ion is 7-coordinated by four phosphonate oxygen atoms from four phosphonate ligands and three aqua ligands. The interconnection of Pb(II) ions via bridging H3L anions results in a 〈001〉 layer. The carboxylate group of the H3L anion also remains non-coordinated and is oriented toward the interlayer space. Solid state luminescent spectrum of compound 1 exhibits a strong broad blue fluorescent emission band at 455 nm under excitation at 365 nm at room temperature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 740, Issues 1–3, 25 April 2005, Pages 181-186
نویسندگان
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