Time‐dependent density functional theory study on the absorption spectrum of Coumarin 102 and its hydrogen‐bonded complexes

W Zhao, Y Ding, Q Xia - Journal of Computational Chemistry, 2011 - Wiley Online Library
The effect of both solvent polarity and hydrogen bonding (HB) on the electronic transition
energy of Coumarin 102 (C102) has been examined using the time‐dependent density …

On the (uninteresting) dependence of the absorption and emission transition moments of coumarin 153 on solvent

JE Lewis, M Maroncelli - Chemical Physics Letters, 1998 - Elsevier
The absorption and emission transition moments of coumarin 153 as well as fluorescence
lifetimes and quantum yields were measured over a broad range of solvents in which the …

Complexation and proton dissociation behavior of 7-hydroxy-4-methylcoumarin and related compounds in the presence of β-cyclodextrin

M Hoshiyama, K Kubo, T Igarashi, T Sakurai - Journal of Photochemistry …, 2001 - Elsevier
The pH effects on the 1: 1 complexation behavior of β-cyclodextrin (β-CDx) with the title
compounds have been investigated by measuring ultraviolet (UV) absorption, circular …

Effects of solvent polarity and hydrogen bonding on coumarin 500

D Li, C Li, Y Liu - Journal of Molecular Liquids, 2016 - Elsevier
The time-dependent density functional theory (TDDFT) is used to investigate the effects of
solvent polarity and hydrogen bond on coumarin 500 (C500). Both the absorption maximum …

Reduced fluorescence quenching of coumarin 102 at higher phenol mole fractions in cyclohexane–phenol and anisole–phenol solvent mixtures: role of competitive …

N Barman, K Sahu - RSC advances, 2014 - pubs.rsc.org
Recently, we demonstrated that the fluorescence of coumarin 102 (C102) drastically
quenches upon hydrogen bonding (H-bonding) with phenol in a non-polar solvent …

Effect of binary solvent mixtures (DMSO/water) on the dipole moment and lifetime of coumarin dyes

BR Gayathri, JR Mannekutla, SR Inamdar - Journal of molecular structure, 2008 - Elsevier
Absorption and fluorescence spectra of four coumarin laser dyes, Coumarin 440 (C440),
Coumarin 450 (C450), Coumarin 466 (C466) and Coumarin 151 (C151), have been …

Solvation dynamics of coumarin 480 in TritonX-100 (TX-100) and bile salt mixed micelles

D Chakrabarty, P Hazra, N Sarkar - The Journal of Physical …, 2003 - ACS Publications
The time-resolved Stokes' shift of the laser dye Coumarin 480 (C-480) has been investigated
in the Stern layer of the pure Triton X-100 (TX-100), bile salt (Sodium Deoxycholate, NaDC) …

Ultrafast measurements of the dynamics of solvation in polar and non-dipolar solvents

J Gardecki, ML Horng, A Papazyan… - Studies in Physical and …, 1995 - Elsevier
The dynamics of solvation of the probe solute coumarin 153 has been measured with~ 100
fs time resolution using the fluorescence upconversion technique. A wide variety of solvents …

Solvent effects on the fluorescence depolarization rates of coumarins in solution: the likely influence of site-selective hydrogen bonding

TG Kim, MR Topp - The Journal of Physical Chemistry A, 2004 - ACS Publications
Fluorescence up-conversion gating experiments with resolution of∼ 150 fs have compared
the fluorescence anisotropy relaxation time profiles for coumarins (C's) 151, 152A, and 153 …

Effect of solvent polarity on the photophysical properties of coumarin-1 dye

A Barik, S Nath, H Pal - The Journal of chemical physics, 2003 - pubs.aip.org
Effects of solvent polarity on the photophysical properties of coumarin-1 (C1; 7-NEt 2-4-CH 3-
1, 2-benzopyrone) dye have been investigated using steady-state and time-resolved …