Breaking the Kasha rule for more efficient photochemistry

AP Demchenko, VI Tomin, PT Chou - Chemical reviews, 2017 - ACS Publications
This paper provides a systematic review and analysis of different phenomena that violate a
basic principle, Kasha's rule, when applied to photochemical reactions. In contrast to the …

Ultrafast elementary photochemical processes of organic molecules in liquid solution

T Kumpulainen, B Lang, A Rosspeintner… - Chemical …, 2017 - ACS Publications
Ultrafast photochemical reactions in liquids occur on similar or shorter time scales compared
to the equilibration of the optically populated excited state. This equilibration involves the …

Femtosecond continuum generation in bulk laser host materials with sub-μJ pump pulses

M Bradler, P Baum, E Riedle - Applied Physics B, 2009 - Springer
We report a comprehensive investigation of femtosecond continuum generation in single
crystals of several common laser host materials. The absolute spectral energy density, pulse …

Sub-50 fs broadband absorption spectroscopy with tunable excitation: putting the analysis of ultrafast molecular dynamics on solid ground

U Megerle, I Pugliesi, C Schriever, CF Sailer, E Riedle - Applied Physics B, 2009 - Springer
We give a full description of a state-of-the-art femtosecond transient spectrometer. The setup
has been put together under full consideration of all technical and conceptual developments …

Energy-and Electron-Transfer Processes in Corrole− Perylenebisimide− Triphenylamine Array

M Tasior, DT Gryko, J Shen, KM Kadish… - The Journal of …, 2008 - ACS Publications
A multichromophoric system, TPA-C-PI, possessing a corrole as the central unit linked to
perylene bisimide and N-[4-(phenylethynyl) phenyl]-N, N-diphenylamine was efficiently …

Ultrafast Excited State Relaxation Dynamics of New Fuchsine‐a Triphenylmethane Derivative Dye

C Biswas, V Rao Soma, P Chetti… - …, 2021 - Wiley Online Library
An all‐inclusive investigation of the ultrafast excited state relaxation dynamics of a
triphenylmethane derivative molecule, New Fuchsine (NF), using a combined approach of …

Exciton migration by ultrafast Förster transfer in highly doped matrixes

M Schlosser, S Lochbrunner - The Journal of Physical Chemistry …, 2006 - ACS Publications
The energy transfer between dye molecules and the mobility of the corresponding excitons
are investigated in polymethyl methacrylate films highly doped with perylene bisimide dyes …

Ultrafast electron transfer dynamics in micellar media using surfactant as the intrinsic electron acceptor

M Kumbhakar, PK Singh, AK Satpati… - The Journal of …, 2010 - ACS Publications
Ultrafast photoinduced intermolecular electron transfer (ET) dynamics involving 7-
aminocoumarin derivatives as electron donor and pyridinium moiety of surfactant molecules …

Dual fluorescence from two polar excited states in one molecule. Structurally additive photophysics of crystal violet lactone

J Karpiuk - The Journal of Physical Chemistry A, 2004 - ACS Publications
Crystal violet lactone (CVL) emits in aprotic solvents at room temperature single (A band,
low polar solvents) or dual (A and B bands, medium and highly polar solvents) fluorescence …

[HTML][HTML] Stability of Rhodamine Lactone Cycle in Solutions: Chain–Ring Tautomerism, Acid–Base Equilibria, Interaction with Lewis Acids, and Fluorescence

OM Obukhova, NO Mchedlov-Petrossyan… - Colorants, 2022 - mdpi.com
The equilibrium between different tautomers that can be colored or colorless is an important
feature for rhodamine dyes. Presently, this phenomenon is mostly discussed for rhodamine …