Synthesis, infrared spectra, thermal analyses and structural studies of half-sandwich Fe(III)/Fe(II) complex containing pyridine-2,6-dicarboxylate and 1,10-phenanthroline |
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| Authors: | Xin Hu Jixi Guo Yongjiang Wang Cong Liu |
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| Institution: | aCollege of Life Science & Chemistry, Xinjiang Normal University, No. 102 Xinyi Road, Urumqi, Xinjiang Proince 830054, China;bInstitute of Applied Chemistry, Xinjiang University, No.14 Shengli Road, Urumqi, Xinjiang 830046, China |
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| Abstract: | A new pyridine-2,6-dicarboxylate iron(III)/iron(II) complex Fe(phen)3]Fe2(PDC)4]·3CH3OH was synthesized and characterized (where PDC = pyridine-2,6-dicarboxylate, phen = 1,10-phenanthroline) by using elemental analysis, IR spectroscopy and thermal analyses (TGA and DTA). The molecular structure of the complex has been determined by single-crystal X-ray diffraction. The complex is mixed-ligands and the IR spectra display bands characteristic of coordinated mixed-ligand bases. All the IR results are in agreement with the X-ray crystal result. The bond lengths indicate that this complex has Fe(phen)3]2+ cation where Fe(II) ion is in typical low-spin state, and in counter ions, Fe(PDC)2]− are both in high-spin state. |
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| Keywords: | IR spectroscopy High-spin Low-spin Iron complexes Thermal analysis |
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