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+ and the analyzed cation leading to the broadening of the signals, see: J. J. Jodry, J. Lacour, unpublished results.
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1H NMR signals by CD in the course of this study after resolution of the helicate.
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46
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85037464684
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note
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2" axes for each individual metal coordination center of helicate 4 as axes that contain the metal center and which bisect the bipyridyl fragment.
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note
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This was confirmed by taking the heated sample in less polar solvent conditions. The improved separation of the signals confirmed the complete epimerization of the salt.
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