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Abstract
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Pyridinium ylides are able to form stable complexes with the help of spectroscopic techniques to be identifiable. The present study describes the synthesis and characterization of mononuclear Ag(I) and polymeric Hg(II) complexes of pyridinium ylides The synthesis of complexes derived from ylides and Ag(I) began in 1975 by Yamamoto et al [1]. Herein, synthesis and characterization of α-ketostabilized pyridinium ylide of the type C5H5N=CHC(O)R with AgNO3 and Hg(NO3)2.H2O, using methanol as a solvent, and study on their antibacterial properties are reported. All reactions were performed in air. Reaction of pyridinium ylides C5H5NCHC(O)C6H5 (m-Br) with Hg(NO3)2.H2O in 1:1 ratios and with AgNO3 in 2:1 ratios leads to products of the type [Ag(ylide)2](NO3) and [Hg(NO3)2(ylide)]n complexes. Characterization of the obtained compounds was also performed by elemental analysis, IR, 1H and 13C NMR. The spectroscopy analyzes and literature [2] were shown that the nitrate ion exists in the polymer chain of Hg complex but in Ag complex, the nitrate ion shows a bonding interaction with the silver ion. (Fig. 1). Also the results show that both complexes represent antibacterial activity against bacteria tested.
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