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One-dimensionally Hydrogen-bonded Silver(I) Saccharinate Complexes with N-(2-Aminoethyl)piperidine and N-(2-Hydroxyethyl)piperidine: Synthesis, Crystal Structures, FTIR and Thermal Studies

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One-dimensionally Hydrogen-bonded Silver(I) Saccharinate Complexes with N -(2-Aminoethyl)piperidine and N -(2-Hydroxyethyl)piperidine:

Synthesis,Crystal Structures,FTIR and Thermal Studies

Sevim Hamamcia, Veysel T. Yilmazb, and Orhan B¨uy ¨ukg ¨ung ¨orc

aDepartment of Chemistry, Faculty of Arts and Sciences, Ondokuz Mayis University, 55139 Kurupelit, Samsun, Turkey

bDepartment of Chemistry, Faculty of Arts and Sciences, Uludag University, 16059 Gorukle, Bursa, Turkey

cDepartment of Physics, Faculty of Arts and Sciences, Ondokuz Mayis University, 55139 Kurupelit, Samsun, Turkey

Reprint requests to Prof. Dr. V. T. Yilmaz. E-mail: vtyilmaz@uludag.edu.tr Z. Naturforsch.2008,63b,139 – 142; received September 5, 2007

Two new complexes [Ag(sac)(aepip)] (1) and [Ag(sac)(hepip)] (2) have been obtained by the re- action of AgNO3with Na(sac)·2H2O (sac = saccharinate) in the presence ofN-(2-aminoethyl)piper- idine (aepip) andN-(2-hydroxyethyl)piperidine (hepip), and characterized by elemental analysis, IR spectroscopy, thermal analysis and single crystal X-ray diffraction. Complexes1and 2crystallize in the monoclinic space groupC2 and triclinic space groupP¯1, respectively. In both complexes, sil- ver(I) is tricoordinated. The sac ligand is N-coordinated, while aepip and hepip behave as N-N and N-O bidentate chelating ligands, respectively. The pip rings of both aepip amd hepip ligands adopt typical ‘chair’ conformation. The individual molecules are linked into one-dimensional chains by two N–H···O hydrogen bonds in1, and one O–H···O hydrogen bond in2. TG-DTG curves illustrated that the endothermic elimination of aepip and hepip ligands takes place in the early stages of thermal decomposition, while that of the sac moiety occurs exothermically at higher temperatures to give metallic silver.

Key words:Saccharinate Complex, Silver(I), Crystal Structure

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