1403/01/10
محمد قادرمزی

محمد قادرمزی

مرتبه علمی: استاد
ارکید:
تحصیلات: دکترای تخصصی
اسکاپوس: 17345456400
دانشکده: دانشکده علوم پایه
نشانی:
تلفن: 0871-6624133

مشخصات پژوهش

عنوان
A new neodymium(III)–calcium(II) one-dimensional coordination polymer constructed from dipicolinic acid: synthesis, crystal structure, spectroscopic and thermal analysis, and solution studies
نوع پژوهش
JournalPaper
کلیدواژه‌ها
Nd–Ca compound, Coordination polymer Crystal structure, Methylimidazo.l
سال
2015
مجله MONATSHEFTE FUR CHEMIE
شناسه DOI
پژوهشگران Mohammad Ghadermazi ، zohreh Derikvand ، zahedi AREZO ، Ardeshir Shokrollahi ، Sara Nasiri ، Hadi Amiri Rudbari

چکیده

A new heterometallic supramolecular coordination polymer, namely [(1-mimH)[Nd(pydc)3Ca(pydcH2) (H2O)2]4H2O]n (where pydcH2 = pyridine-2,6-dicarboxylic acid (dipicolinic acid), 1-mim = 1-methylimidazole) has been prepared and characterized by elemental analysis, spectral (IR, UV–Vis), 1H NMR and 13C NMR spectroscopy, thermal analysis as well as single-crystal X-ray diffraction. The X-ray diffraction study demonstrates that the compound has a 1D network; the layers of this compound are connected by complicated hydrogen bonds to form 3D supramolecular architecture. The polymeric chain contains Nd(III) ions and Ca(II) ions bridged by (pydc)2- ligands. Each (pydc)2- ion is connected to one neodymium( III) ion as a tridentate ligand and one calcium ion via bridging carboxylate group. The equilibrium constants of dipicolinic acid and 1-methylimidazole, pydc/1-mim proton transfer system, as well as those of the complexes (binary, ternary, and quaternary) were investigated by potentiometric pH titration method.