Abstract
Measurements of the circular intensity differential in the fluorescence of calycanthine, and of the linearly-polarized excitation and emission spectrum, are found to support the exciton analysis of the electronic CD spectrum, upon which the determination of the absolute stereochemical configuration of the molecule is based. The observed vibrational IRCD of the N-H stretching mode of calycanthine is shown to originate principally from chromophore-substituent coupling, and not from the degenerate interchromophore coupling particular to chiral dimers. The general chromophore-substituent coupling mechanism provides a procedure for the determination of absolute configuration from the IRCD associated with a localised characteristic vibrational mode.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
