Found: C, 19.09 H, 2.20 N, 7.45%.Ĭrystallographic Data Collection and Structure Determination Suitable crystals for X-ray diffraction measurement were obtained by slow evaporation from DMSO over two weeks (yield 1.00 g, 68.0%, m.p. A white precipitate formed that was filtered off. Resulted solution was stirred 48 h at room temperature. Synthesis of 2.HgBr 4 (1)Ģ-(Aminomethyl)pyridine (0.4 ml, 4 mmol) and HgBr 2 (1.08 g, 3 mmol) were dissolved separately in methanol (25 ml) and then mixed. Melting point was obtained by a Kofler Heizbank Rechart type 7841 melting point apparatus. Elemental analysis was performed using a Heraeus CHN-O Rapid analyzer. Infrared spectra (4000-250 cm -1) of solid samples were taken as 1% dispersion in CsI pellets using a Shimadzu-470 spectrometer. Other materials were purchased from Merck and used without further purification. HgBr 2 and 2-(Aminomethyl)pyridine were purchased from Aldrich and used as received. Herein, we report the synthesis, characterization and crystal structure of a new mercury(II) complex containing 2-(aminomethyl)pyridine as an example of five-coordinated Hg complexes containing this ligand. 1 In Yilmaz and co-workers paper in 2004, a bis(saccharinato) complex of mercury(II) with 2-(aminomethyl)pyridine was synthesized and characterized by single crystal X-ray diffraction. On the other hand there is only one report on the complexation of mercury to this ligand by the formula of. So there is no structural reports with the formula of (where "2-AMPy" is 2-(aminomethyl)pyridine) in the literature. In these formula, "bipy" is 2,2'-bipyridine, "phen" is 1,10-phenanthroline, "py" is pyridien, "sach" is saccharinato and "triAz" is 3-(2-fluorophenyl)-1-(4-nitrophenyl)triazenide). 3 Crystal structures of and have been studied by Batsanov et al. 2 In 2004, Mahjoub and co-workers has been reported structure of. 1-4 has been reported in Halfpenny and Small in 1997 by two different counter cations. On the other hand, crystal structure of five mercury complexes with the formula of of have been reported including 2,2'-bipyridine, 1,10-phenanthroline, 3-(2-fluorophenyl)-1-(4-nitrophenyl)triazenide molecules as N-N bidentate ligands and pyridien, thiocyanate, saccharinato and trillate as mono-dentate ligand. But it is to be noted, there is only one report on the complexation of mercury to this ligand. There are many reports on the coordination chemistry of different metals including this ligand. Keywords: Hg(II), 2-(aminomethyl)pyridine ligand, crystal structure, thermal gravimetric analyses.Ģ-(Aminomethyl)pyridine ligand, 2-AMPy, as an N,N'-bidentate ligand containing both aromatic pyridine aliphatic amine donor function, Scheme 1, is well-known. According to four-coordinate geometry index, τ 4, of 0.95, anionic part has perfect tetrahedral geometry. In this compound, two five-coordinated mercury centers in the cationic parts have slightly and highly distorted square-based pyramidal geometries by the trigonal-indexes, τ 5, of 0.18 and 0.49, respectively. Resulted complex was characterized by IR, elemental analysis, thermal analysis and single crystal X-ray diffraction. Suitable crystals of 1 for diffraction experiment was obtained by slow evaporation from DMSO. * e-mail: new complex of 2.HgBr 4 (1) was synthesized from the reaction of HgBr 2 with 2-(aminomethyl)pyridine (2-AMPy) in methanolic solution. SHIRVAN * FEREYDOON KHAZALI, SARA HAYDARI DEZFULI, AND ALI BORSALANIĭepartment of Chemistry, Omidieh Branch, Islamic Azad University, Omidieh, Iran SYNTHESIS, CRYSTAL STRUCTURE ANALYSIS AND CHARACTERIZATION OF MERCURY(II) COMPLEX CONTAINING 2-(AMINOMETHYL)PYRIDINE AND BROMIDE
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