Synthesis and circular dichroism spectra of mer(N)-cis(NH3)-(Co(OO)(NH3)2(py)(H2O))+ and mer(N)-(Co(OO)(en)(py)(H2O))+ complexes.
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The <I>mer</I>(<I>N</I>)-<I>cis</I>(<I>NH</I><SUB>3</SUB>)-[Co(OO)(NH<SUB>3</SUB>)<SUB>2</SUB>(py)(H<SUB>2</SUB>O)]<SUP>+</SUP> and <I>mer</I>(<I>N</I>)-[Co(OO)(en)(py)(H<SUB>2</SUB>O)]<SUP>+</SUP> complexes (OO=ox<SUP>2−</SUP> or mal<SUP>2−</SUP>) have been prepared and optically resolved. The CD spectra are different. The difference seems to be due to the additional optical activity derived from the helical arrangement of two bidentate ligands in the latter ethylenediamin complexes.
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