Abstract
The J-aggregation behaviour of two cyanine dyes (3,3′-disulfopropyl-4,5,4′,5′-dibenzo-9-methyl-thiacarbocyanine triethylammonium salt ( MTC) and 3,3′-disulfopropyl-4,5,4′,5′-dibenzo-9-phenyl-thiacarbocyanine triethylammonium salt ( PTC)) has been investigated in the presence of dication chloride using absorption spectroscopy, 1H and multinuclear NMR methods. The promotion efficiency on J-aggregation of the dye molecule and the magnitude of the effective coherence length of the J-aggregate were found to be dependent on the dyes' structure and their ability to coordinate with the metal ions. The interaction between the metal ions and the J-aggregates could be explained by the association between metal ions and J-aggregates, and the apparent association constants were obtained from the chemical shifts in NMR spectra of the metal ions.
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.
