{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Roy P"],"funding":["Engineering and Physical Sciences Research Council"],"pagination":["253-259"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC9841557"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["14(1)"],"pubmed_abstract":["Symmetry breaking charge separation (SBCS) is central to photochemical energy conversion. The widely studied 9,9-bianthryl (9,9'BA) is the prototype, but the role of bianthryl structure is hardly investigated. Here we investigate excited state structural dynamics in a bianthryl of reduced symmetry, 1,9-bianthryl (1,9'BA), through ultrafast electronic and vibrational spectroscopy. Resonance selective Raman in polar solvents reveals a Franck-Condon state mode that disappears concomitant with the rise of ring breathing modes of radical species. Solvent-dependent dynamics show that CS is driven by solvent orientational motion, as in 9,9'BA. In nonpolar solvents the excited state undergoes multistep structural relaxation, including subpicosecond Franck-Condon state decay and biexponential diffu"],"journal":["The journal of physical chemistry letters"],"pubmed_title":["Solvent Tuning Excited State Structural Dynamics in a Novel Bianthryl."],"pmcid":["PMC9841557"],"funding_grant_id":["EP/R042357/1","EP/J009148/1"],"pubmed_authors":["Meech SR","Cammidge AN","Roy P","Al-Kahtani F"],"additional_accession":[]},"is_claimable":false,"name":"Solvent Tuning Excited State Structural Dynamics in a Novel Bianthryl.","description":"Symmetry breaking charge separation (SBCS) is central to photochemical energy conversion. The widely studied 9,9-bianthryl (9,9'BA) is the prototype, but the role of bianthryl structure is hardly investigated. Here we investigate excited state structural dynamics in a bianthryl of reduced symmetry, 1,9-bianthryl (1,9'BA), through ultrafast electronic and vibrational spectroscopy. Resonance selective Raman in polar solvents reveals a Franck-Condon state mode that disappears concomitant with the rise of ring breathing modes of radical species. Solvent-dependent dynamics show that CS is driven by solvent orientational motion, as in 9,9'BA. In nonpolar solvents the excited state undergoes multistep structural relaxation, including subpicosecond Franck-Condon state decay and biexponential diffu","dates":{"release":"2023-01-01T00:00:00Z","publication":"2023 Jan","modification":"2025-04-26T09:54:08.14Z","creation":"2025-04-06T13:12:18.851Z"},"accession":"S-EPMC9841557","cross_references":{"pubmed":["36594925"],"doi":["10.1021/acs.jpclett.2c03469"]}}