Abstract
We report a comprehensive analysis of the ultrafast photoexcited-state processes of a nucleobase-arene conjugate, 9-(adenin-9-yl)anthracene (AdAn), in organic solvents. By virtue of the strong base-pairing and π-π interactions, AdAn forms an alternate distichous assembly, wherein the adenines are near-orthogonally flanked to the columnar anthracene-on-anthracene (An-An) stacks. The preliminary photophysical and redox analysis of AdAn in organic solvent reveals a summation of adenine (Ad) and anthracene (An) spectral features with minimal perturbation in the ground state properties. The frontier molecular orbital analysis suggests a favorable charge transfer characteristics in the dyad which is further corroborated by the negative value of the free energy for electron transfer from 1Ad* to An (△Get = -1.25 eV) and Ad to 1An* (△Get = -0.12 eV) obtained via Weller analysis. Upon photoexcitation (λex = 266 and 355 nm), self-assembled AdAn reveals the formation of radical ion-pair intermediates (τcrA = 120 ms)...
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.
