کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5159983 | 1501668 | 2017 | 22 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new hemidirected lead(II) complex extended in holodirected one-dimensional polymer by secondary Pb-O interactions: A precursor for preparation of PbO nanoparticles, and DFT study
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A new 1D extended lead (II) coordination polymer [Pb(2-apinh) (NO3)2]n (1), (2-apinh = 2-acetylpyridine isonicotinoylhydrazone) has been synthesized by a thermal gradient method in a branched tube and characterized by elemental analysis, FT-IR, thermal analysis and single crystal X-ray diffraction. The single-crystal X-ray data show that the coordination number of Pb(II) in [Pb(2-apinh)(NO3)2] moieties is five (PbN2O3) with a stereo-chemically active lone pair on lead(II), and thus its coordination sphere is hemidirected. Moreover, each [Pb(2-apinh) (NO3)2] unit is linked by the secondary Pbâ¯O7i interactions to form 1D extended coordination polymer, which approximately completes the Pb(II) coordination sphere with a Pbâ¯O5 interaction (PbN2O5) in a holodirected geometry. In the solid state, the 1D chains are connected through non-covalent interactions, such as Ïâ¯Ï stacking, C-Hâ¯Ï and C-Hâ¯O interactions to form 3D supramolecular network. Moreover, compound 1 exhibits 1D left-handed helical infinite chains along the c axis by non-covalent interactions. The structure of 1 has been optimized by density functional theory. The calculated structural parameters and IR spectra for the complex are in accordance with its crystal structure. PbO nanoparticles were obtained by thermolysis of 1 at 180 °C with oleic acid as a surfactant and characterized via FT-IR, XRD, and SEM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Molecular Structure - Volume 1149, 5 December 2017, Pages 142-148
Journal: Journal of Molecular Structure - Volume 1149, 5 December 2017, Pages 142-148
نویسندگان
Yunes Abbasi Tyula, Abedien Zabardasti, Hamid Goudarziafshar, Babak Mirtamizdoust,