Excited‐State Intramolecular Charge‐Transfer Dynamics in 4‐Dimethylamino‐4′‐cyanodiphenylacetylene: An Ultrafast Raman Loss Spectroscopic Perspective

Autor: Arvind Barak, Nishant Dhiman, Floriane Sturm, Florian Rauch, Yapamanu Adithya Lakshmanna, Karen S. Findlay, Andrew Beeby, Todd B. Marder, Siva Umapathy

Publikováno v: ChemPhotoChem, 2022, Vol.6(12), pp.e202200146 [Peer Reviewed Journal]

The D-π-A compound 4-dimethylamino-4′-cyanodiphenylacetylene (DACN-DPA) exhibits intramolecular charge transfer (ICT) upon photoexcitation. Ultrafast Raman Loss Spectroscopy (URLS) measurements show distinct spectral and temporal dynamics of C≡C

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::067f41f4f1b130260c2c7f832992c5bb
https://doi.org/10.1002/cptc.202200146

Intermolecular Hydrogen Bonding Controlled Intersystem Crossing Rates of Benzophenone

Autor: Surajit Kayal, Ravi Kumar Venkatraman, Arvind Barak, Andrew J. Orr-Ewing, Siva Umapathy

Publikováno v: Venkatraman, R K, Kayal, S, Barak, A, Orr-Ewing, A J & Umapathy, S 2018, ' Intermolecular Hydrogen Bonding Controlled Intersystem Crossing Rates of Benzophenone ', Journal of Physical Chemistry Letters, vol. 9, no. 7, pp. 1642-1648 . https://doi.org/10.1021/acs.jpclett.8b00345

Solvation plays a critical role in various physicochemical and biological processes. Here, the rate of intersystem crossing (ISC) of benzophenone from its S1(nπ∗) state to its triplet manifold of states is shown to be modified by hydrogen-bonding

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5543302602b0626dac6732bc9fb142b
https://pubmed.ncbi.nlm.nih.gov/29537284