کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1334253 1500229 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis and characterization of new coordination polymers based on 2,3-/3,4-pyridinedicarboxylates and bispyridine ligands with structural diversity
ترجمه فارسی عنوان
سنتز و مشخص کردن پلیمرهای هماهنگی جدید بر اساس 2،3- / 3،4-پیریدیدین کربوکسیلات و لیگاندهای بیسپیریدین با تنوع ساختاری
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
چکیده انگلیسی

New coordination polymers, formulated as {bpaH2[Cu(μ-2,3-pydc)2]}n (1), [Cd(μ-2,3-pydc)(μ-bpa)0.5(H2O)2]n (2), {[Co2(μ4-3,4-pydc)2(μ-bpe)(H2O)2]·H2O}n (3) and [Cu2(pic)4(μ-4,4′-bipy)]·(4,4′-bipy)·2H2O (4) have been synthesized based on the bispyridine ligands; 1,2-bis(4-pyridyl)ethane (bpa), 1,2-bis(4-pyridyl)ethylene (bpe) and 4,4′-bipyridine (4,4′-bipy) along with dianionic 2,3- and 3,4-pyridinedicarboxylate (2,3-pydc and 3,4-pydc) and mono anionic picolinate (pic) ligands, respectively. All the complexes have been characterized by elemental and IR spectroscopy and single-crystal X-ray diffraction studies. 1 has proton transfer products of bpaH2 cations and shows 1D double chain. Using of the 2,3-pydc and 3,4-pydc ligands in 2 and 3 in the presence of Cd(II) and Co(II) ions generate 1D → 2D inclined polycatenated structure in 2 and 4,5 connected {44·62·104}{44·62} 4,5T6 topology in 3, respectively. The picolinate ligand in dinuclear structure of 4 was occurred by partial decarboxylation of 2,3-pydcH2 in the process of the solvothermal reaction. 4,4′-Bipyridine molecules act as both a template via rare weak C–H⋯N interaction and a bridge between Cu(II) centers in the self-assembly process of supramolecular structure of 4. Thermal decomposition behavior of complexes and luminescent property of 2 are also presented herein.

Four new coordination polymers have been synthesized with structural variety. 1 has proton transfer products of bispyridine cations and shows 1D double chain. 2 has 1D → 2D inclined polycatenated structure while 3 has 4,5 connected {44·62·104}{44·62} 4,5T6 topology. The picolinate ligand in dinuclear structure of 4 was occurred by partial in-situ decarboxylation of 2,3-pydcH2 in the process of the solvothermal reaction.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polyhedron - Volume 111, 17 June 2016, Pages 1–10
نویسندگان
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