The optical activity of the H-stretching vibrational modes of calycanthine and IRCD determinations of absolute configuration |
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| Authors: | Christopher J. Barnett Alexander F. Drake Stephen F. Mason |
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| Affiliation: | Chemistry Department, King''s College, London WC2R 2LS, U.K. |
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| Abstract: | The infrared circular dichroism (IRCD) due to the H-stretching vibrational modes of calycanthine originates principally from chromophore-substituent coupling and not from the degenerate interchromophore coupling mechanism particular to dissymmetric dimers. The general non-degenerate mechanism provides a procedure for the determination of absolute configuration from the IRCD associated with a localised characteristic vibrational mode. |
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