Comparison of Transition Metal-Mediated Oxidation Reactions of Guanine in Nucleoside and Single-Stranded Oligodeoxynucleotide Contexts |
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| Authors: | Ghude Pranjali Schallenberger Mark A Fleming Aaron M Muller James G Burrows Cynthia J |
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| Affiliation: | a Institute of Inorganic Chemistry, University of Stuttgart, 70569 Stuttgart, Germany
b Laboratory of Inorganic Chemistry, University of Helsinki, 00014 University of Helsinki, Finland |
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| Abstract: | Sulfurization of 3-[(diphenylphosphinyl)methyl]benzene-1,2-diol 1 produced phosphine sulfide 3. Both ligands reacted easily to form gold(I) and rhodium(I) complexes which were characterized by analytical and spectroscopic data, and single-crystal X-ray diffraction studies. Whereas the phosphine prefers to form complexes with a metal-to-ligand ratio of 1:2 with both metals, the phosphine sulfide exhibits a reduced donor power and yields only a 1:1 complex with AuCl. With rhodium(I), formation of a homobimetallic complex with a metal-to-ligand ratio of 2:1 was found. This complex displays an unusual coordination of both metal atoms to the catechol moiety whereas the phosphine sulfide moiety remains inactive. |
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| Keywords: | Phosphine sulfides Phosphines Catechols Rhodium Gold 103Rh NMR |
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