Chromatographic Separation of Isomers of Meridional Tris(amino-acidato) Cobalt(III) Homochelates and Their Absolute Configuration

References

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• Nakazawa , H. , Ohtsuru , H. and Yoneda , H. Submitted for publication. The absorption maxima of the s-cis-mer-, u-cis-mer-[Co(edda) (gly)], s-cis-mer-, and u-cis-mer-[Co(edda) (β-ala)] are 542 nm(∊=116), 470(sh), 372(114) for s-cis-mer-gly, 525(94), 370(128) for u-cis-mer-gly, 560(sh), 505(113), 374(122) for s-cis-mer-β-ala, and 590 (sh), 495(83), 368(90) for u-cis-mer-β-ala, respectively. The CD data are as follows for the Δ-isomers: 542nm(Δ=−5.35), 465(+2.17) for s-cis-mer-gly, 543(-2.48), 465(+0.97) for u-cis-mer-gly, 540(-3.67), 477(+2.31) for s-cis-mer-β-ala, and 553(-1.58), 477(+1.09) for u-cis-mer-β-ala complexes
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