Ultrafast processes in upper excited singlet states of free and caged 7-diethylaminothiocoumarin

A Dutta, SK Ghosh, S Mandal… - The Journal of …, 2024 - ACS Publications
The photochemistry and photophysics of thiocarbonyl compounds, analogues of carbonyl
compounds with sulfur, have long been overshadowed by their counterparts. However …

Ultrafast Intersystem Crossing in Benzanthrone: Effect of Hydrogen Bonding and Viscosity

S Bhowmik, A Dutta, P Sen - The Journal of Physical Chemistry A, 2024 - ACS Publications
Understanding the intricate factors governing intersystem crossing (ISC) in aromatic
carbonyl compounds remains a long-standing interest among researchers. This study …

Triplet state photophysics of bis (dimethylphenanthroline) copper (I) might involve volume-changing molecular motion: Ultrafast absorption and emission studies

A Dutta, S Bhowmik, P Sen - Chemical Physics Letters, 2024 - Elsevier
Study of triplet photophysics has remained a contemporary field for the last eight decades
due to its wide-ranging applications. Many recent studies deciphered the influence of …

Revealing the Role of Electronic Effect to Modulate the Photophysics and Z-Scan Responses of o-Locked GFP Chromophores

D Paul, P Sahoo, A Sengupta, U Tripathy… - The Journal of …, 2024 - ACS Publications
Three novel core green fluorescent protein (GFP) chromophore analogues, based on a
doubly locked conformation and variable electronic effects by replacing one hydrogen with …

Twisted intramolecular charge‐transfer state of trans‐3‐(N,N‐Dimethylamino)‐4'‐cyanostilbene: The C−C bond twisting

YF Hsu, JS Yang - Journal of the Chinese Chemical Society, 2023 - Wiley Online Library
Whether a twisted intramolecular charge‐transfer (TICT) state is formed is an important issue
for understanding the fluorescence properties of a push‐pull organic dye. Here we report a …