KMID : 1059519920360050679
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Journal of the Korean Chemical Society 1992 Volume.36 No. 5 p.679 ~ p.684
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Synthesis and Characterization of Palladium (¥³) Complexes with Guanine, Adenine, and Uracil Base
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Oh Sang-Oh
Chung Duck-Young Kim Hee-Seon
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Abstract
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New Pd(¥³) complexes have been prepared through the reactions of trans-[Pd(en)2Cl2](ClO4)2 (en = ethylenediamine) with Guanine, Adenine, or Uracil anion as purine and pyrimidine base. We identified the ratio of central metal versus ligands by C¡¤H¡¤N elemental analysis and proposed the coordinating site of the base by infrared spectrum, 1H-NMR, and 13C-NMR spectrum. Guanine or Adenine ligand coordinated at N7 site and an en ligand exchanged for ClO4- counter ions of the starting material . As these results, the complexes showed the formula [Pd(en)L2(ClO4)2](ClO4)2¡¤(en) (L = Guanine, Adenine). But in the Uracil complex no exchange of the en ligand and ClO4- occured and Uracil anion preferred the N1 to N3 as coordinating site, the complex [Pd(en)2(Urac)2](ClO4)2 (Urac = Uracil anion).
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KEYWORD
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